Circadian clock gene TaPRR1,associated with yield-related traits,underwent selection during wheat breeding
作者单位：College of AgricultureLudong University National Key Facility for Crop Gene Resources and Genetic ImprovementInstitute of Crop ScienceChinese Academy of Agricultural Sciences State Key Laboratory of Crop BiologyCollege of Life SciencesShandong Agricultural University Key Laboratory of Plant Molecular PhysiologyInstitute of BotanyChinese Academy of Sciences
会议名称：《第十届全国小麦基因组学及分子育种大会》
会议日期：2019年
关 键 词：Wheat TaPRR1 haplotype association analysis yield selection
摘 要：Wheat is an important food crop and the timing of flowering is the key stage for the transformation from vegetative to reproductive growth *** clock is the central part of photoperiod regulation and Pseudo-Response Regulators(PRR) are key components of circadian ***,little is known about the effects of PRR family members on yield-related traits of crop *** this study,we reported polymorphisms and haplotypes of TaPRR1 and demonstrated that natural variations of TaPRRl associated with significant differences on yield-related traits including plant height,thousand grain weight and heading *** localization and transcriptional activity analysis showed that TaPRRl is a nuclear localization protein with transcriptional activity controlled by CCT *** addition,geographical distribution analysis indicated that TaPRR1 haplotypes showed distinctive characteristics in different agro-ecological production ***,assessment of the distribution frequency of TaPRR1 haplotypes suggested that TaPRR1 underwent selection during wheat breeding *** study will provide basis for indepth understanding of the function of TaPRR1 on yield-related traits of wheat,as well as establish a theoretical guidance for wheat molecular marker-assisted breeding.