| 第一作者： | Xia, Aiai |
|---|---|
| 英文第一作者： | Xia, Aiai |
| 联系作者： | He, Yan; Lu, Ming;Cui, Zhenhai |
| 英文联系作者： | He, Yan; Lu, Ming;Cui, Zhenhai |
| 发表年度： | 2023 |
| 卷： | |
| 摘要： | Maize husk leaf - the outer leafy layers covering the ear - modulates kernel yield and quality. Despite its importance, however, the genetic controls underlying husk leaf development remain elusive.Our previous genome-wide association study identified a single nucleotide polymorphism located in the gene RHW1 (Regulator of Husk leaf Width) that is significantly associated with husk leaf-width diversity in maize. Here, we further demonstrate that a polymorphic 18-bp InDel (insertion/deletion) variant in the 30 untranslated region of RHW1 alters its protein abundance and accounts for husk leaf width variation. RHW1 encodes a putative MYB-like transcriptional repressor. Disruption of RHW1 altered cell proliferation and resulted in a narrower husk leaf, whereas RHW1 overexpression yielded a wider husk leaf. RHW1 positively regulated the expression of ZCN4, a well-known TFL1-like protein involved in maize ear development. Dysfunction of ZCN4 reduced husk leaf width even in the context of RHW1 overexpression. The InDel variant in RHW1 is subject to selection and is associated with maize husk leaf adaption from tropical to temperate regions. Overall, our results identify that RHW1-ZCN4 regulates a pathway conferring husk leaf width variation at a very early stage of husk leaf development in maize. |
| 刊物名称： | NEW PHYTOLOGIST |
| 参与作者： | Xia, AAI (Xia, Aiai) [1] ; Zheng, LM (Zheng, Leiming) [1] ; Wang, Z (Wang, Zi) [1] ; Wang, Q (Wang, Qi) [1] ; Lu, M (Lu, Ming) [2] ; Cui, ZH (Cui, Zhenhai) [3] ; He, Y (He, Yan) [1] , [4] |
删除或更新信息，请邮件至freekaoyan#163.com(#换成@)
The RHW1-ZCN4 regulatory pathway confers natural variation of husk leaf width in maize
本站小编 Free考研考试/2024-01-13
The RHW1-ZCN4 regulatory pathway confers natural variation of husk leaf width in maize
相关话题/
领限时大额优惠券,享本站正版考研考试资料!
优惠券领取后72小时内有效，10万种最新考研考试考证类电子打印资料任你选。涵盖全国500余所院校考研专业课、200多种职业资格考试、1100多种经典教材，产品类型包含电子书、题库、全套资料以及视频，无论您是考研复习、考证刷题，还是考前冲刺等，不同类型的产品可满足您学习上的不同需求。 ...考试优惠券 本站小编 Free壹佰分学习网 2022-09-19
