Multi-Year QTL Mapping and RNA-seq Reveal Candidate Genes for Early Floret-Opening Time in Japonica Rice
文献类型： 外文期刊
作者： Hu, Xiaozhou 1 ; Chen, Guoliang 2 ; Zhang, Rui 1 ; Xu, Mengxuan 1 ; Zhao, Ling 3 ; Tang, Hailong 2 ; Ni, Jinlong 4 ; Zhou, Ming 1 ;
作者机构： 1.Zhejiang Univ, Coll Life Sci, State Key Lab Plant Physiol & Biochem, Hangzhou 310058, Peoples R China
2.China Natl Seed Grp Co Ltd, Beijing 100031, Peoples R China
3.Jiangsu Acad Agr Sci, Inst Food Crops, Nanjing 210014, Peoples R China
4.Anhui Acad Agr Sci, Rice Res Inst, Hefei 230031, Peoples R China
关键词： floret-opening time; quantitative trait locus; transcriptome; rice breeding
期刊名称：AGRICULTURE-BASEL （ 影响因子：3.6； 五年影响因子：3.6 ）
ISSN：
年卷期： 2023 年 13 卷 4 期
页码：
收录情况： SCI
摘要： Floret-opening time (FOT) refers to the time between florets opening and closing within a day, and is a crucial agricultural trait for reproductive development, thermal tolerance and hybrid breeding in rice. However, little is known about the genetic basis and genes controlling FOT in rice. Here, we report the genetic mapping and transcriptome analysis of FOT in the japonica rice cultivar G23. Combining the QTLseqr and GradedPool-seq (GPS) methods, we located a major quantitative trait locus (QTL), qFOT6, on chromosome 6 in multiple years and under different environments. Integrating RNA-seq analysis, we selected 13 potential candidate genes in the qFOT6 interval that might be associated with FOT in G23. Taken together, our work uncovers a major QTL and potential candidate genes for FOT in rice, thus providing invaluable clues for rice breeding.
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