您好，欢迎访问湖南省农业科学院 机构知识库！

Genome-Wide Association Study of Arsenic Accumulation in Polished Rice

文献类型： 外文期刊

作者： Dong, Zheng 1 ; Guo, Liang 1 ; Li, Xiaoxiang 1 ; Li, Yongchao 1 ; Liu, Wenqiang 1 ; Chen, Zuwu 1 ; Liu, Licheng 1 ; Liu, Zhixi 1 ; Guo, Yujing 1 ; Pan, Xiaowu 1 ;

作者机构： 1.Hunan Acad Agr Sci, Hunan Rice Res Inst, Changsha 410125, Peoples R China

2.Minist Agr, Key Lab Indica Rice Genet & Breeding Middle & Lowe, Changsha 410125, Peoples R China

关键词： arsenic; GWAS; MYB transcription factor; polished rice

期刊名称：GENES （ 影响因子：3.5； 五年影响因子：3.9 ）

ISSN：

年卷期： 2023 年 14 卷 12 期

页码：

收录情况： SCI

摘要： The accumulation of arsenic (As) in rice poses a significant threat to food safety and human health. Breeding rice varieties with low As accumulation is an effective strategy for mitigating the health risks associated with arsenic-contaminated rice. However, the genetic mechanisms underlying As accumulation in rice grains remain incompletely understood. We evaluated the As accumulation capacity of 313 diverse rice accessions grown in As-contaminated soils with varying As concentrations. Six rice lines with low As accumulation were identified. Additionally, a genome-wide association studies (GWAS) analysis identified 5 QTLs significantly associated with As accumulation, with qAs4 being detected in both of the experimental years. Expression analysis demonstrated that the expression of LOC_Os04g50680, which encodes an MYB transcription factor, was up-regulated in the low-As-accumulation accessions compared to the high-As-accumulation accessions after As treatment. Therefore, LOC_Os04g50680 was selected as a candidate gene for qAs4. These findings provide insights for exploiting new functional genes associated with As accumulation and facilitating the development of low-As-accumulation rice varieties through marker-assisted breeding.

  • 相关文献
作者其他论文 更多>>
置顶
购物车
反馈

© 京ICP备09089781号-29 主办单位：湖南省农业科学院

学术资源： 中国农业科学院 农业专业知识服务系统 农科联盟资源共建共享平台 中国农业科技文献与信息服务平台 中国农业期刊集成服务平台