Comprehensive Comparative Analysis of the JAZ Gene Family in Common Wheat (Triticum aestivum) and Its D-Subgenome Donor Aegilops tauschii
文献类型： 外文期刊
作者： Zhai, Zhiwen 1 ; Che, Yuqing 1 ; Geng, Shuaifeng 1 ; Liu, Shaoshuai 1 ; Zhang, Shuqin 2 ; Cui, Dada 1 ; Deng, Zhongyin 1 ; Fu, Mingxue 1 ; Li, Yang 1 ; Zou, Xinyu 1 ; Liu, Jun 1 ; Li, Aili 1 ; Mao, Long 1 ;
作者机构： 1.Inst Crop Sci, Chinese Acad Agr Sci, Natl Key Facil Crop Resources & Genet Improvement, Beijing 100081, Peoples R China
2.China Agr Univ, Natl Ctr Evaluat Agr Wild Plants Rice, Dept Plant Genet & Breeding, State Key Lab Plant Physiol & Biochem, Beijing 100094, Peoples R China
关键词： Aegilops tauschii; wheat; JAZ gene family; tandem duplication; yield
期刊名称：PLANTS-BASEL （ 影响因子：4.5； 五年影响因子：4.8 ）
ISSN： 2223-7747
年卷期： 2024 年 13 卷 9 期
页码：
收录情况： SCI
摘要： JASMONATE-ZIM DOMAIN (JAZ) repressor proteins work as co-receptors in the jasmonic acid (JA) signalling pathway and are essential for plant development and environmental adaptation. Despite wheat being one of the main staple food crops, until recently, comprehensive analysis of its JAZ gene family has been limited due to the lack of complete and high-quality reference genomes. Here, using the latest reference genome, we identified 17 JAZ genes in the wheat D-genome donor Aegilops tauschii. Then, 54 TaJAZs were identified in common wheat. A systematic examination of the gene structures, conserved protein domains, and phylogenetic relationships of this gene family was performed. Five new JAZ genes were identified as being derived from tandem duplication after wheat divergence from other species. We integrated RNA-seq data and yield QTL information and found that tandemly duplicated TaJAZ genes were prone to association with spike-related traits. Moreover, 12 TaJAZ genes were located within breeding selection sweeps, including 9 tandemly duplicated ones. Haplotype variation analysis of selected JAZ genes showed significant association of TaJAZ7A and TaJAZ13A with thousand-grain weight. Our work provides a clearer picture of wheat JAZ gene evolution and puts forward the possibility of using these genes for wheat yield improvement.
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