DELAYED HEADING DATE1 interacts with OsHAP5C/D, delays flowering time and enhances yield in rice.

DELAYED HEADING DATE1 interacts with OsHAP5C/D, delays flowering time and enhances yield in rice.
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DELAYED HEADING DATE1 与 OsHAP5C/D 相互作用,延迟开花时间并提高水稻产量

DOI:
10.1111/pbi.12996
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发表时间:
2019-03
影响因子:
13.8
通讯作者:
Wan J
Wan J
中科院分区:
工程技术1区
文献类型:
--
作者:
Zhang H;Zhu S;Liu T;Wang C;Cheng Z;Zhang X;Chen L;Sheng P;Cai M;Li C;Wang J;Zhang Z;Chai J;Zhou L;Lei C;Guo X;Wang J;Wang J;Jiang L;Wu C;Wan J

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抽穗期是影响作物产量的重要农艺性状。GRAS蛋白家族是植物特异性的超家族,广泛参与植物生长和信号转导。然而,GRAS蛋白在水稻抽穗期调控中的作用却鲜有报道。在这里,我们报告了一个GRAS蛋白DHD 1(延迟抽穗日期1)延迟抽穗,提高水稻产量。生化分析表明DHD 1与OsHAP 5C/D在体内外均存在物理相互作用。DHD 1和OsHAP 5C/D定位于细胞核,呈节律性表达。DHD 1和OsHAP 5C/D均通过调控Ehd 1的表达影响抽穗期。我们推测DHD 1与OsHAP 5C/D相互作用通过抑制Ehd 1的表达来延迟抽穗期。
Heading date is an important agronomic trait affecting crop yield. The GRAS protein family is a plant‐specific super family extensively involved in plant growth and signal transduction. However, GRAS proteins are rarely reported have a role in regulating rice heading date. Here, we report a GRAS protein DHD1 (Delayed Heading Date1) delays heading and enhances yield in rice. Biochemical assays showed DHD1 physically interacts with OsHAP5C/D both in vitro and in vivo. DHD1 and OsHAP5C/D located in the nucleus and showed that rhythmic expression. Both DHD1 and OsHAP5C/D affect heading date by regulating expression of Ehd1. We propose that DHD1 interacts with OsHAP5C/D to delay heading date by inhibiting expression of Ehd1.
水稻早花 1 是一种 CKI,磷酸化 DELLA 蛋白 SLR1 以负向调节赤霉素信号传导
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