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Photosynthesis as a source is a significant contributor to the reproductive sink affecting cotton yield and fiber quality. Moreover, carbon assimilation from subtending leaves adds up a significant proportion to the reproductive sink. Therefore, this study aimed to address the source-sink relationship of boll subtending leaf with fiber quality and yield related traits in upland cotton. A core collection of 355 upland cotton accessions was subjected to subtending leaf removal treatment effects across 2 years. The analysis of variance suggested a significant effect range in the source-sink relationship under subtending leaf removal effects at different growth stages. Further insight into the variation was provided by the correlation analysis and principal component analysis. A significant positive correlation between different traits was observed and the multivariate analysis including hierarchical clustering and principal component analysis (PCA) categorised germplasm accessions into three groups on the basis of four subtending leaf removal treatment effects across 2 years. A set of genotypes with the lowest and highest treatment effects has been identified. Selected accessions and the outcome of the current study may provide a basis for a further study to explore the molecular mechanism of source-sink relationship of boll subtending leaf and utilization of breeding programs focused on cotton improvement.
Naimatullah Mangi; Mian Nazir; Xiaoyan Wang; Muhammad Iqbal; Zareen Sarfraz; Ghulam Jatoi; Tahir Mahmood; QiFeng Ma; Fan Shuli. Dissecting Source-Sink Relationship of Subtending Leaf for Yield and Fiber Quality Attributes in Upland Cotton (Gossypium hirsutum L.). Plants 2021, 10, 1147 .
AMA StyleNaimatullah Mangi, Mian Nazir, Xiaoyan Wang, Muhammad Iqbal, Zareen Sarfraz, Ghulam Jatoi, Tahir Mahmood, QiFeng Ma, Fan Shuli. Dissecting Source-Sink Relationship of Subtending Leaf for Yield and Fiber Quality Attributes in Upland Cotton (Gossypium hirsutum L.). Plants. 2021; 10 (6):1147.
Chicago/Turabian StyleNaimatullah Mangi; Mian Nazir; Xiaoyan Wang; Muhammad Iqbal; Zareen Sarfraz; Ghulam Jatoi; Tahir Mahmood; QiFeng Ma; Fan Shuli. 2021. "Dissecting Source-Sink Relationship of Subtending Leaf for Yield and Fiber Quality Attributes in Upland Cotton (Gossypium hirsutum L.)." Plants 10, no. 6: 1147.
Wild progenitors are an excellent source for strengthening the genetic basis and accumulation of desirable variation lost due to directional selection and adaptation in modern cultivars. Here, we re-evaluate a landrace of Gossypium hirsutum, formerly known as Gossypium purpurascens. Our study seeks to understand the genomic structure, variation, and breeding potential of this landrace, providing potential insights into the biogeographic history and genomic changes likely associated with domestication. A core set of accessions, including current varieties, obsolete accessions, G. purpurascens, and other geographical landraces, are subjected to genotyping along with multilocation phenotyping. Population fixation statistics suggest a marked differentiation between G. purpurascens and three other groups, emphasizing the divergent genomic behavior of G. purpurascens. Phylogenetic analysis established the primitive nature of G. purpurascens, identifying it as a vital source of functional variation, the inclusion of which in the upland cotton (cultivated G. hirsutum) gene pool may broaden the genetic basis of modern cultivars. Genome-wide association results indicate multiple loci associated with domestication regions corresponding to flowering and fiber quality. Moreover, the conserved nature of G. purpurascens can also provide insights into the evolutionary process of G. hirsutum.
Mian Faisal Nazir; Shoupu He; Haris Ahmed; Zareen Sarfraz; Yinhua Jia; Hongge Li; Gaofei Sun; Muhammad Shahid Iqbal; Zhaoe Pan; Xiongming Du. Genomic insight into the divergence and adaptive potential of a forgotten landrace G. hirsutum L. purpurascens. Journal of Genetics and Genomics 2021, 1 .
AMA StyleMian Faisal Nazir, Shoupu He, Haris Ahmed, Zareen Sarfraz, Yinhua Jia, Hongge Li, Gaofei Sun, Muhammad Shahid Iqbal, Zhaoe Pan, Xiongming Du. Genomic insight into the divergence and adaptive potential of a forgotten landrace G. hirsutum L. purpurascens. Journal of Genetics and Genomics. 2021; ():1.
Chicago/Turabian StyleMian Faisal Nazir; Shoupu He; Haris Ahmed; Zareen Sarfraz; Yinhua Jia; Hongge Li; Gaofei Sun; Muhammad Shahid Iqbal; Zhaoe Pan; Xiongming Du. 2021. "Genomic insight into the divergence and adaptive potential of a forgotten landrace G. hirsutum L. purpurascens." Journal of Genetics and Genomics , no. : 1.
Stem reserves in grain crops are considered important in grain filling under post-anthesis stress in the absence/low availability of photosynthetic assimilates. Considerable variation is present among genotypes for stem reserve translocation in wheat. Therefore, this study aimed to exploit the phenotypic variation for stem reserve translocation in wheat under control and chemically induced stress conditions. The phenotypic variation among six parents and their corresponding direct cross combinations was evaluated under induced stress conditions. The results signify the presence of considerable variation between treatments, genotypes, and treatment-genotype interactions. The parent LLR-20 depicted the highest translocation of dry matter and contribution of post-anthesis assimilates under induced-stress conditions. Similarly, cross combinations Nacozari × LLR22, Nacozari × LLR 20, Nacozari × Parula, Nacozari × LLR 21, LLR 22 × LLR 21, and LLR 20 × LLR 21 showed higher source-sink accumulation under induced-stress conditions. The selected parents and cross combinations can be further utilized in the breeding program to strengthen the genetic basis for stress tolerance in wheat.
Mian Nazir; Zareen Sarfraz; Naimatullah Mangi; Muhammad Nawaz Shah; Talat Mahmood; Tahir Mahmood; Muhammad Iqbal; Muhammad Ishaq Asif Rehmani; Mohamed El-Sharnouby; Mohamed Shabaan; Sobhy Sorour; Ayman EL Sabagh. Post-Anthesis Mobilization of Stem Assimilates in Wheat under Induced Stress. Sustainability 2021, 13, 5940 .
AMA StyleMian Nazir, Zareen Sarfraz, Naimatullah Mangi, Muhammad Nawaz Shah, Talat Mahmood, Tahir Mahmood, Muhammad Iqbal, Muhammad Ishaq Asif Rehmani, Mohamed El-Sharnouby, Mohamed Shabaan, Sobhy Sorour, Ayman EL Sabagh. Post-Anthesis Mobilization of Stem Assimilates in Wheat under Induced Stress. Sustainability. 2021; 13 (11):5940.
Chicago/Turabian StyleMian Nazir; Zareen Sarfraz; Naimatullah Mangi; Muhammad Nawaz Shah; Talat Mahmood; Tahir Mahmood; Muhammad Iqbal; Muhammad Ishaq Asif Rehmani; Mohamed El-Sharnouby; Mohamed Shabaan; Sobhy Sorour; Ayman EL Sabagh. 2021. "Post-Anthesis Mobilization of Stem Assimilates in Wheat under Induced Stress." Sustainability 13, no. 11: 5940.
9-cis-epoxy carotenoid dioxygenase (NCED) is a fundamental enzyme, which plays an essential role in the process of organ development and stress resistance by regulating abscisic acid (ABA) synthesis in plant. In this study, a total of 7, 7, 14 and 14 NCED genes were identified from the genomes of G. arboreum, G. raimondii, G. barbadense and G. hirsutum, respectively. Phylogenetic tree showed that all forty-two NCED genes could be classified into three groups in cotton genus. Collinear analysis revealed that the NCED genes in G. hirsutum were not amplified by tandem repeats after polyploidy events. The function of NCED genes was evaluated between two accessions with contrasting plant height. The results showed that expression of the NCED genes in dwarf accession was higher than that in taller ones. GhNCED1-silenced cotton plants confirmed that suppression of NCED genes could increase the plant height, but reduce the resistance abilities to drought and salt stress. Our study systematically identified the homologs of NCED genes and their functions in cotton, which could provide new genetic resources for improving plant height and stress in future cotton breeding.
Xinxin Pei; Xiaoyang Wang; Guoyong Fu; Baojun Chen; Mian Faisal Nazir; Zhaoe Pan; Shoupu He; Xiongming Du. Identification and functional analysis of 9-cis-epoxy carotenoid dioxygenase (NCED) homologs in G. hirsutum. International Journal of Biological Macromolecules 2021, 182, 298 -310.
AMA StyleXinxin Pei, Xiaoyang Wang, Guoyong Fu, Baojun Chen, Mian Faisal Nazir, Zhaoe Pan, Shoupu He, Xiongming Du. Identification and functional analysis of 9-cis-epoxy carotenoid dioxygenase (NCED) homologs in G. hirsutum. International Journal of Biological Macromolecules. 2021; 182 ():298-310.
Chicago/Turabian StyleXinxin Pei; Xiaoyang Wang; Guoyong Fu; Baojun Chen; Mian Faisal Nazir; Zhaoe Pan; Shoupu He; Xiongming Du. 2021. "Identification and functional analysis of 9-cis-epoxy carotenoid dioxygenase (NCED) homologs in G. hirsutum." International Journal of Biological Macromolecules 182, no. : 298-310.
Background Stem hardness is one of the major influencing factors for plant architecture in upland cotton (Gossypium hirsutum L.). Evaluating hardness phenotypic traits is very important for the selection of elite lines for resistance to lodging in Gossypium hirsutum L. Cotton breeders are interested in using diverse genotypes to enhance fiber quality and high-yield. Few pieces of research for hardness and its relationship with fiber quality and yield were found. This study was designed to find the relationship of stem hardness traits with fiber quality and yield contributing traits of upland cotton. Results Experiments were carried out to measure the bending, acupuncture, and compression properties of the stem from a collection of upland cotton genotypes, comprising 237 accessions. The results showed that the genotypic difference in stem hardness was highly significant among the genotypes, and the stem hardness traits (BL, BU, AL, AU, CL, and CU) have a positive association with fiber quality traits and yield-related traits. Statistical analyses of the results showed that in descriptive statistics result bending (BL, BU) has a maximum coefficient of variance, but fiber length and fiber strength have less coefficient of variance among the genotypes. Principal component analysis (PCA) trimmed quantitative characters into nine principal components. The first nine principal components (PC) with Eigenvalues > 1 explained 86% of the variation among 237 accessions of cotton. Both 2017 and 2018, PCA results indicated that BL, BU, FL, FE, and LI contributed to their variability in PC1, and BU, AU, CU, FD, LP, and FWPB have shown their variability in PC2. Conclusion We describe here the systematic study of the mechanism involved in the regulation of enhancing fiber quality and yield by stem bending strength, acupuncture, and compression properties of G. hirsutum.
Irum Raza; Daowu Hu; Adeel Ahmad; Hongge Li; Shoupu He; Mian Faisal Nazir; Xiaoyang Wang; Yinhua Jia; Zhaoe Pan; Peng Zhang; Muhammad Yasir; Muhammad Shahid Iqbal; Xiaoli Geng; Liru Wang; Baoyin Pang; Xiongming DU. Correlation analysis of stem hardness traits with fiber and yield-related traits in core collections of Gossypium hirsutum. Journal of Cotton Research 2021, 4, 1 -10.
AMA StyleIrum Raza, Daowu Hu, Adeel Ahmad, Hongge Li, Shoupu He, Mian Faisal Nazir, Xiaoyang Wang, Yinhua Jia, Zhaoe Pan, Peng Zhang, Muhammad Yasir, Muhammad Shahid Iqbal, Xiaoli Geng, Liru Wang, Baoyin Pang, Xiongming DU. Correlation analysis of stem hardness traits with fiber and yield-related traits in core collections of Gossypium hirsutum. Journal of Cotton Research. 2021; 4 (1):1-10.
Chicago/Turabian StyleIrum Raza; Daowu Hu; Adeel Ahmad; Hongge Li; Shoupu He; Mian Faisal Nazir; Xiaoyang Wang; Yinhua Jia; Zhaoe Pan; Peng Zhang; Muhammad Yasir; Muhammad Shahid Iqbal; Xiaoli Geng; Liru Wang; Baoyin Pang; Xiongming DU. 2021. "Correlation analysis of stem hardness traits with fiber and yield-related traits in core collections of Gossypium hirsutum." Journal of Cotton Research 4, no. 1: 1-10.
Continuous selection and adaptation to local environment resulted in the loss of genetic variation in Gossypium hirsutum, which is the most important source of natural fiber. Wild progenitors are an excellent source for strengthening the genetic base and accumulation of desirable traits in modern cultivars. Here we reevaluate a landrace of Gossypium hirsutum, formerly known as Gossypium purpurascens. We seek to understand the genomic structure, variation, and the adaptive/breeding potential among largely neglected landraces of Gossypium hirsutum purpurascens, providing insights into the biogeographic history and genomic changes likely associated with domestication. Population fixation statistics suggested marked differentiation between G. purpurascens and current varieties, obsolete accessions, and geographical landraces of upland cotton, emphasizing the divergent behavior of G. purpurascens. Phylogeny established the primitive nature of G. purpurascens, the inclusion of which in upland cotton gene-pool can enhance the narrowed genetic base of upland cultivars. Genome-wide associations comprehend multiple loci associated with domestication regions corresponding to flowering and fiber quality. Moreover, conserved nature of G. purpurascens can provide insight into understanding the evolutionary process of G. hirsutum.
Mian Faisal Nazir; Shoupu He; Haris Ahmed; Zareen Sarfraz; Yinhua Jia; Hongge Li; Gaofei Sun; Muhammad Shahid Iqbal; Zhaoe Pan; Xiongming Du. Genomic insight into biogeographic history, divergence, and adaptive potential of G. purpurascens, a forgotten landrace of G. hirsutum. 2020, 1 .
AMA StyleMian Faisal Nazir, Shoupu He, Haris Ahmed, Zareen Sarfraz, Yinhua Jia, Hongge Li, Gaofei Sun, Muhammad Shahid Iqbal, Zhaoe Pan, Xiongming Du. Genomic insight into biogeographic history, divergence, and adaptive potential of G. purpurascens, a forgotten landrace of G. hirsutum. . 2020; ():1.
Chicago/Turabian StyleMian Faisal Nazir; Shoupu He; Haris Ahmed; Zareen Sarfraz; Yinhua Jia; Hongge Li; Gaofei Sun; Muhammad Shahid Iqbal; Zhaoe Pan; Xiongming Du. 2020. "Genomic insight into biogeographic history, divergence, and adaptive potential of G. purpurascens, a forgotten landrace of G. hirsutum." , no. : 1.
Understanding the genetic diversity and population structure of germplasms is essential when selecting parents for crop breeding. The genomic changes that occurred during the domestication and improvement of Upland cotton (Gossypium hirsutum) remains poorly understood. Besides, the available genetic resources from cotton cultivars are limited. By applying restriction site-associated DNA marker sequencing (RAD-seq) technology to 582 tetraploid cotton accessions, we confirmed distinct genomic regions on chromosomes A06 and A08 in Upland cotton cultivar subgroups. Based on the pedigree, reported QTLs, introgression analyses, and genome-wide association study (GWAS), we suggest that these divergent regions might have resulted from the introgression of exotic lineages of G. hirsutum landraces and their wild relatives. These regions were the typical genomic signatures that might be responsible for maturity and fiber quality on chromosome A06 and chromosome A08, respectively. Moreover, these genomic regions are located in the putative pericentromeric regions, implying that their application will be challenging. In the study, based on high-density SNP markers, we reported two genomic signatures on chromosomes A06 and A08, which might originate from the introgression events in the Upland cotton population. Our study provides new insights for understanding the impact of historic introgressions on population divergence and important agronomic traits of modern Upland cotton cultivars.
Shoupu He; Pengpeng Wang; Yuan-Ming Zhang; Panhong Dai; Mian Faisal Nazir; Yinhua Jia; Zhen Peng; Zhaoe Pan; Junling Sun; Liru Wang; Gaofei Sun; Xiongming Du. Introgression Leads to Genomic Divergence and Responsible for Important Traits in Upland Cotton. Frontiers in Plant Science 2020, 11, 929 .
AMA StyleShoupu He, Pengpeng Wang, Yuan-Ming Zhang, Panhong Dai, Mian Faisal Nazir, Yinhua Jia, Zhen Peng, Zhaoe Pan, Junling Sun, Liru Wang, Gaofei Sun, Xiongming Du. Introgression Leads to Genomic Divergence and Responsible for Important Traits in Upland Cotton. Frontiers in Plant Science. 2020; 11 ():929.
Chicago/Turabian StyleShoupu He; Pengpeng Wang; Yuan-Ming Zhang; Panhong Dai; Mian Faisal Nazir; Yinhua Jia; Zhen Peng; Zhaoe Pan; Junling Sun; Liru Wang; Gaofei Sun; Xiongming Du. 2020. "Introgression Leads to Genomic Divergence and Responsible for Important Traits in Upland Cotton." Frontiers in Plant Science 11, no. : 929.
Span>Bread wheat (Triticum aestivum L.) harbors hexaploid genome with complex of three diploid genomes (A, B and D). Major goals of today’s research in the wheat world count basically on improvement of grain quality and high yielding genotypes. It is relatively easier to target its diploid lineages for identification of high yielding genomic segments as compared to hexaploid with least polymorphism. The current study was aimed at the detection of genes/QTLs of high economic interest on ‘A’ genome of diploid progenitors. Segregating population from cross of Triticum monococcum and Triticum boeoticum was utilized for the purpose. 98 RILs along with parents were analyzed for various quantitative and qualitative traits. The molecular data obtained from RAPD markers was analyzed along with morphological traits data to identify association among them. Single factor ANOVA gave association (α= 0.01) of days to booting, days to heading and days to flowering with plant type and leaf orientation, flag leaf width with crown color, number of spikes per experimental unit with leaf orientation, 1000 kernel weight with aleurone color and RAPD-11 (locus b).
Zareen Sarfraz; Mohammad Maroof Shah; Muhammad Shahid Iqbal; Mian Faisal Nazir; Syeda Akash Fatima. IDENTIFICATION OF VALUABLE TRAITS THROUGH MOLECULAR AND MORPHOLOGICAL MARKERS IN DIPLOID WHEAT. Pakistan Journal of Biotechnology 2020, 17, 1 .
AMA StyleZareen Sarfraz, Mohammad Maroof Shah, Muhammad Shahid Iqbal, Mian Faisal Nazir, Syeda Akash Fatima. IDENTIFICATION OF VALUABLE TRAITS THROUGH MOLECULAR AND MORPHOLOGICAL MARKERS IN DIPLOID WHEAT. Pakistan Journal of Biotechnology. 2020; 17 (2):1.
Chicago/Turabian StyleZareen Sarfraz; Mohammad Maroof Shah; Muhammad Shahid Iqbal; Mian Faisal Nazir; Syeda Akash Fatima. 2020. "IDENTIFICATION OF VALUABLE TRAITS THROUGH MOLECULAR AND MORPHOLOGICAL MARKERS IN DIPLOID WHEAT." Pakistan Journal of Biotechnology 17, no. 2: 1.
Upland cotton is the most economically important fibre crop. The human-mediated selection has resulted in modern upland cultivars with higher yield and better fibre quality. However, changes in genome structure resulted from human-mediated selection are poorly understood. Comparative population genomics offers us tools to dissect the genetic history of domestication and helps to understand the genome-wide effects of human-mediated selection. Hereby, we report a comprehensive assessment of Gossypium hirsutum landraces, obsolete cultivars and modern cultivars based on high throughput genome-wide sequencing of the core set of genotypes. As a result of the genome-wide scan, we identified 93 differential regions and 311 selection sweeps associated with domestication and improvement. Furthermore, we performed genome-wide association studies to identify traits associated with the differential regions and selection sweeps. Our study provides a genetic basis to understand the domestication process in Chinese cotton cultivars. It also provides a comprehensive insight into changes in genome structure due to selection and improvement during the last century. We also identified multiple genome-wide associations (GWAS associations) for fibre yield, quality and other morphological characteristics.
Mian Faisal Nazir; Yinhua Jia; Haris Ahmed; Shoupu He; Muhammad Shahid Iqbal; Zareen Sarfraz; Mushtaque Ali; Chenfan Feng; Irum Raza; Gaofei Sun; Zhaoe Pan; Xiongming Du. Genomic Insight into Differentiation and Selection Sweeps in the Improvement of Upland Cotton. Plants 2020, 9, 711 .
AMA StyleMian Faisal Nazir, Yinhua Jia, Haris Ahmed, Shoupu He, Muhammad Shahid Iqbal, Zareen Sarfraz, Mushtaque Ali, Chenfan Feng, Irum Raza, Gaofei Sun, Zhaoe Pan, Xiongming Du. Genomic Insight into Differentiation and Selection Sweeps in the Improvement of Upland Cotton. Plants. 2020; 9 (6):711.
Chicago/Turabian StyleMian Faisal Nazir; Yinhua Jia; Haris Ahmed; Shoupu He; Muhammad Shahid Iqbal; Zareen Sarfraz; Mushtaque Ali; Chenfan Feng; Irum Raza; Gaofei Sun; Zhaoe Pan; Xiongming Du. 2020. "Genomic Insight into Differentiation and Selection Sweeps in the Improvement of Upland Cotton." Plants 9, no. 6: 711.
Cotton is one of the major industrial crops that supply natural fibers and oil for industries. This study was conducted to understand the mechanism of delayed gland morphogenesis in seeds of Gossypium bickii. In this study, we compared glandless seeds of G. bickii with glanded seeds of Gossypium arboreum. High-throughput sequencing technology was used to explore and classify the expression patterns of gland-related genes in seeds and seedlings of cotton plants. Approximately 131.33 Gigabases of raw data from 12 RNA sequencing samples with three biological replicates were generated. A total of 7196 differentially-expressed genes (DEGs) were identified in all transcriptome data. Among them, 3396 genes were found up-regulated and 3480 genes were down-regulated. Gene Ontology (GO) and Kyoto Encyclopedia of Genes and Genomes (KEGG) annotations were performed to identify different functions between genes unique to glandless imbibed seeds and glanded seedlings. Co-expression network analysis revealed four modules that were identified as highly associated with the development of glandless seeds. Here the hub genes in each module were identified by weighted gene co-expression network analysis (WGCNA). In total, we have selected 13 genes involved in transcription factors, protein and MYB-related functions, that were differentially expressed in transcriptomic data and validated by quantitative reverse-transcription polymerase chain reaction (qRT-PCR). These selected genes may play an important role for delayed gland morphogenesis. Our study provides comprehensive insight into the key genes related to glandless traits of seeds and plants, and can be further exploited by functional and molecular studies.
Mushtaque Ali; Hailiang Cheng; Mahtab Soomro; Li Shuyan; Muhammad Bilal Tufail; Mian Faisal Nazir; Xiaoxu Feng; Youping Zhang; Zuo Dongyun; Lv Limin; Qiaolian Wang; Guoli Song. Comparative Transcriptomic Analysis to Identify the Genes Related to Delayed Gland Morphogenesis in Gossypium bickii. Genes 2020, 11, 472 .
AMA StyleMushtaque Ali, Hailiang Cheng, Mahtab Soomro, Li Shuyan, Muhammad Bilal Tufail, Mian Faisal Nazir, Xiaoxu Feng, Youping Zhang, Zuo Dongyun, Lv Limin, Qiaolian Wang, Guoli Song. Comparative Transcriptomic Analysis to Identify the Genes Related to Delayed Gland Morphogenesis in Gossypium bickii. Genes. 2020; 11 (5):472.
Chicago/Turabian StyleMushtaque Ali; Hailiang Cheng; Mahtab Soomro; Li Shuyan; Muhammad Bilal Tufail; Mian Faisal Nazir; Xiaoxu Feng; Youping Zhang; Zuo Dongyun; Lv Limin; Qiaolian Wang; Guoli Song. 2020. "Comparative Transcriptomic Analysis to Identify the Genes Related to Delayed Gland Morphogenesis in Gossypium bickii." Genes 11, no. 5: 472.
Cotton possesses certain physical features, including leaf and stem trichomes that help plants deter damage caused by insect pests, and to some extent, from abiotic factors as well. Among those features, trichomes (pubescence) hold a special place as a first line of defense and a managemental tool against sucking insect pests of cotton. Different insect pests of cotton (whiteflies, aphids, jassids, and boll weevil) severely damage the yield and quality of the crop. Likewise, whiteflies, aphids, jassids, and other insect pests are considered as potential carriers for cotton leaf curl viruses and other diseases. Genotyping by sequencing (GBS) study was conducted to understand and explore the genomic regions governing hairy (Pubescence) leaves and stem phenotypes. A total of 224 individuals developed from an intraspecific cross (densely haired cotton (Liaoyang duomao mian) × hairless cotton (Zong 128)) and characterized phenotypically for leaf and stem pubescence in different environments. Here we identify and report significant QTLs (quantitative trait loci) associated with leaf and stem pubescence, and the response of plant under pest (aphid) infestation. Further, we identified putative genes colocalized on chromosome A06 governing mechanism for trichome development and host–pest interaction. Our study provides a comprehensive insight into genetic architecture that can be employed to improve molecular marker-assisted breeding programs aimed at developing biotic (insect pests) resilient cotton cultivars.
Haris Ahmed; Mian Faisal Nazir; Zhoe Pan; Wenfang Gong; Muhammad Shahid Iqbal; Shoupu He; Xiongming Du. Genotyping by Sequencing Revealed QTL Hotspots for Trichome-Based Plant Defense in Gossypium hirsutum. Genes 2020, 11, 368 .
AMA StyleHaris Ahmed, Mian Faisal Nazir, Zhoe Pan, Wenfang Gong, Muhammad Shahid Iqbal, Shoupu He, Xiongming Du. Genotyping by Sequencing Revealed QTL Hotspots for Trichome-Based Plant Defense in Gossypium hirsutum. Genes. 2020; 11 (4):368.
Chicago/Turabian StyleHaris Ahmed; Mian Faisal Nazir; Zhoe Pan; Wenfang Gong; Muhammad Shahid Iqbal; Shoupu He; Xiongming Du. 2020. "Genotyping by Sequencing Revealed QTL Hotspots for Trichome-Based Plant Defense in Gossypium hirsutum." Genes 11, no. 4: 368.
For determination of best general and specific combiners for achene yield and related components, a study on a 7×7 diallel fashion in sunflower was conducted at experimental field of Department of Plant Breeding and Genetics, University of Agriculture, Faisalabad, Pakistan. The data were recorded on quantitative traits; days to maturity, plant height, stem diameter, head diameter, number of leaves, Achene per head, achene yield per plant, 100-achene weight, filled achene percentage and oil contents and subjected to Analysis of variance and combining abilities. The accessions were significant for studied traits except oil contents. The accessions A-544, A-554 and A-552 showed significant general combining ability effects days to maturity, plant height, stem diameter, head diameter, number of leaves and filled achene, achene per head and achene yield per plant. The best cross combination A-546×A-560 showed significant specific combining ability effects for number of leaves and filled achene percentage. Among reciprocal crosses, the cross A-560×A-534 proved best for plant height and stem diameter while A-548×A-546 for number of leaves and achene per head.
Adeel Riaz; Muhammad Hammad Nadeem Tahir; Muhammad Rizwan; Mian Faisal Nazir; Bisma Riaz. Combining Ability Analysis for Achene Yield and Related Components in Sunflower (Helianthus annuus L.). Helia 2017, 40, 1 .
AMA StyleAdeel Riaz, Muhammad Hammad Nadeem Tahir, Muhammad Rizwan, Mian Faisal Nazir, Bisma Riaz. Combining Ability Analysis for Achene Yield and Related Components in Sunflower (Helianthus annuus L.). Helia. 2017; 40 (67):1.
Chicago/Turabian StyleAdeel Riaz; Muhammad Hammad Nadeem Tahir; Muhammad Rizwan; Mian Faisal Nazir; Bisma Riaz. 2017. "Combining Ability Analysis for Achene Yield and Related Components in Sunflower (Helianthus annuus L.)." Helia 40, no. 67: 1.
We conducted this research because earlier research revealed that Pakistani farmers were growing 8–10-year-old wheat (Triticum aestivum L.) varieties and hence not benefitting from the recent advances in wheat breeding. Participatory varietal selection (PVS) trials were conducted to have farmers validate and include newly released wheat varieties into seed-production stream to speed up replacement of old and obsolete wheat varieties by farmer-preferred new high-yielding varieties. Fourteen new varieties recommended for irrigated and eight for rainfed environments were evaluated in this research involving smallholder farmers in food-deficit districts of Pakistan. Collaborating farmers preferred 10 varieties from the PVS trials, eight of which were germplasm from the International Maize and Wheat Improvement Center (CIMMYT) that yielded on average 5–17% more grain than local checks. Local checks used in the PVS trials in Sindh and Khyber Pakhtunkhwa were old improved varieties. Greater yield advantage from new varieties over local checks was reported from rainfed environments and areas where old local checks were used. The PVS research showed the possibility of ensuring food security of smallholder farmers as new high-yielding varieties gave an additional 0.3 –0.5 tons of grain per ha, sufficient to feed two to three persons per year. Research also revealed that innovative farmers in rainfed regions grew wheat varieties recommended for irrigated regions to identify high-yielding wheat varieties with stable performance. Feedback by farmers to wheat breeding research system was to develop even higher yielding new wheat varieties with diseases resistance to replace old and obsolete varieties to boost food security.
Krishna D. Joshi; Attiq U. Rehman; Ghullam Ullah; Mian Faisal Nazir; Mahreen Zahara; Jamil Akhtar; Muhammad Khan; Amanullah Baloch; Jaleelullah Khokhar; Ehsan Ellahi; Attaullah Khan; Muhammad Suleman; Muhammad Imtiaz. Acceptance and competitiveness of new improved wheat varieties by smallholder farmers. Journal of Crop Improvement 2017, 31, 608 -627.
AMA StyleKrishna D. Joshi, Attiq U. Rehman, Ghullam Ullah, Mian Faisal Nazir, Mahreen Zahara, Jamil Akhtar, Muhammad Khan, Amanullah Baloch, Jaleelullah Khokhar, Ehsan Ellahi, Attaullah Khan, Muhammad Suleman, Muhammad Imtiaz. Acceptance and competitiveness of new improved wheat varieties by smallholder farmers. Journal of Crop Improvement. 2017; 31 (4):608-627.
Chicago/Turabian StyleKrishna D. Joshi; Attiq U. Rehman; Ghullam Ullah; Mian Faisal Nazir; Mahreen Zahara; Jamil Akhtar; Muhammad Khan; Amanullah Baloch; Jaleelullah Khokhar; Ehsan Ellahi; Attaullah Khan; Muhammad Suleman; Muhammad Imtiaz. 2017. "Acceptance and competitiveness of new improved wheat varieties by smallholder farmers." Journal of Crop Improvement 31, no. 4: 608-627.
In Pakistan, wheat (Triticum aestivum L.) varieties undergo intensive yield testing within the National Uniform Wheat Yield Trials (NUWYT) before recommendations are made to farmers. The trialing network extends across 12 different agroecological zones defined for the whole of the country. In this paper, we consider the analysis of data from this trial system over 2 yr and 34 locations. For each of the 16 varieties, variances of genotype × location (G × L) and genotype × location × year (G × L × Y) interactions were estimated to assess stability. Substantial differences in stability were found between the 16 varieties. The fitted model was used further to compute genotype means for each of the seven irrigated agroecological zones. It is demonstrated that a model with random genotype × zone (G × Z) effects can be used to borrow strength across zones, which is particularly beneficial for zones with a small number of test locations. Our results show considerable shrinkage of best linear unbiased predictions (BLUPs) of G × Z means compared with best linear unbiased estimators (BLUEs), which reflects a considerable amount of environmental noise in the data. A salient feature of our approach is that shrinkage depends on stability variances, thus providing a convenient insurance mechanism against overoptimistic as well as overpessimistic mean yield estimates for particularly unstable varieties. At the same time, this approach provides a new way to combine stability and mean performance in a meaningful way. Copyright © 2016. . Copyright © by the Crop Science Society of America, Inc.
Hans‐Peter Piepho; Mian Faisal Nazir; Maqsood Qamar; Atiq‐Ur‐Rehman Rattu; Riaz‐ Ud‐ Din; Manzoor Hussain; Gulzar Ahmad; Fazal‐ E‐ Subhan; Javed Ahmad; Abdullah; Karim Bux Laghari; Imad Ali Vistro; M. Sharif Kakar; Mehboob Ali Sial; Muhammad Imtiaz. Stability Analysis for a Countrywide Series of Wheat Trials in Pakistan. Crop Science 2016, 56, 2465 -2475.
AMA StyleHans‐Peter Piepho, Mian Faisal Nazir, Maqsood Qamar, Atiq‐Ur‐Rehman Rattu, Riaz‐ Ud‐ Din, Manzoor Hussain, Gulzar Ahmad, Fazal‐ E‐ Subhan, Javed Ahmad, Abdullah, Karim Bux Laghari, Imad Ali Vistro, M. Sharif Kakar, Mehboob Ali Sial, Muhammad Imtiaz. Stability Analysis for a Countrywide Series of Wheat Trials in Pakistan. Crop Science. 2016; 56 (5):2465-2475.
Chicago/Turabian StyleHans‐Peter Piepho; Mian Faisal Nazir; Maqsood Qamar; Atiq‐Ur‐Rehman Rattu; Riaz‐ Ud‐ Din; Manzoor Hussain; Gulzar Ahmad; Fazal‐ E‐ Subhan; Javed Ahmad; Abdullah; Karim Bux Laghari; Imad Ali Vistro; M. Sharif Kakar; Mehboob Ali Sial; Muhammad Imtiaz. 2016. "Stability Analysis for a Countrywide Series of Wheat Trials in Pakistan." Crop Science 56, no. 5: 2465-2475.
Mian Faisal Nazir. INHERITANCE STUDIES FOR MORPHO-PHYSIOLOGICAL TRAITS IN WHEAT UNDER RAINFED CONDITION. 2021, 1 .
AMA StyleMian Faisal Nazir. INHERITANCE STUDIES FOR MORPHO-PHYSIOLOGICAL TRAITS IN WHEAT UNDER RAINFED CONDITION. . 2021; ():1.
Chicago/Turabian StyleMian Faisal Nazir. 2021. "INHERITANCE STUDIES FOR MORPHO-PHYSIOLOGICAL TRAITS IN WHEAT UNDER RAINFED CONDITION." , no. : 1.
Mian Faisal Nazir. Design and analysis of a trial to select for stress tolerance. 2021, 1 .
AMA StyleMian Faisal Nazir. Design and analysis of a trial to select for stress tolerance. . 2021; ():1.
Chicago/Turabian StyleMian Faisal Nazir. 2021. "Design and analysis of a trial to select for stress tolerance." , no. : 1.
Mian Faisal Nazir. Estimation of heritability, correlation and path coefficient analysis in fine grain rice (Oryza sativa L.). 2021, 1 .
AMA StyleMian Faisal Nazir. Estimation of heritability, correlation and path coefficient analysis in fine grain rice (Oryza sativa L.). . 2021; ():1.
Chicago/Turabian StyleMian Faisal Nazir. 2021. "Estimation of heritability, correlation and path coefficient analysis in fine grain rice (Oryza sativa L.)." , no. : 1.