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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.
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.
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.