Prof. Dr. Yushan Qiao

1. Imprinted Genes in Strawberry The ploidy levels of genus Fragaria are diverse, interspecific and interploidy hybridization barriers occur generally in the genus. Genomic imprinting is an inheritance process independent of the classical Mendelian inheritance. Sexual reproductive isolation in flowering plants is closely related to the genomic imprinting mechanism. Our interest is to identify the imprinted genes and their regulatory small RNA (sRNA) molecules in strawberry for providing a basis of epigenetics in interspecific and interploidy hybridization barriers of Fragaria spp. 2. Self-incompatibility in genus Fragaria The mechanism of gametophytic self-incompatibility (GSI) in genus Fragaria is complex. My lab. has exploiting this by various ways: including identifying the style specific S-RNase genes and the modifiers involved in S-RNase-based GSI process of diploid Fragaria viridis, analyzing the function of cis-acting elements by point mutation and combination mutation, screening candidate transcription factor genes from cDNA library by yeast one-hybrid system, and using transcription factor RNA co-immunoprecipitation (RIP) and locating lncRNAs expressed by the non-coding sequence of S-RNase. 3. Soil Treatment Technologies on Strawberry Planting We are committed to finding environmentally friendly, safe and effective soil treatment technologies, with emphasis on appropriate rotation, crop selection and returning techniques.