作者：Zemao Yang, Shilin Tian, Xiangkong Li, Zhigang Dai, An Yan, Zhong Chen, Jiquan Chen, Qing Tang,Chaohua Cheng, Ying Xu, Canhui Deng, Chan Liu, Ling Kang, DongweiXie, Jian Zhao, Xiaojun Chen, Xiaoyu Zhang,Yupeng Wu, Alei Li and JianguangSu

影响因子：7.091

刊物名称：The Plant Journal

出版年份：2022,112(3):812-829

doi: https://doi.org/10.1111/tpj.15983

Abstract

Jute (Corchorus sp.) is the most important bast fiber crop worldwide; however, the mechanisms underlyingdomestication and improvement remain largely unknown. We performed multi-omics analysis by integrating de novo sequencing, resequencing, and transcriptomic and epigenetic sequencing to clarify the domestication and improvement of dark jute Corchorus olitorius. We demonstrated that dark jute underwent earlydomestication and a relatively moderate genetic bottleneck during improvement breeding. A genome-wideassociation study of 11 important agronomic traits identified abundant candidate loci. We characterized theselective sweeps in the two breeding stages of jute, prominently, soil salinity differences played an important role in environmental adaptation during domestication, and the strongly selected genes for improvement had an increased frequency of favorable haplotypes. Furthermore, we speculated that an encodingauxin/indole-3-acetic acid protein COS07g_00652 could enhance the flexibility and strength of the stem toimprove fiber yield. Our study not only provides valuable genetic resources for future fiber breeding in jute,but also is of great significance for reviewing the genetic basis of early crop breeding.

Fig. A genome-wide association study (GWAS) of salt tolerance and the genes underlying the ascorbate metabolisms and the abscisic acid (ABA) biosynthesis pathway in jute