The OsmiR396c-OsGRF4-OsGIF1 regulatory module determines grain size and yield in rice.
The OsmiR396c-OsGRF4-OsGIF1 regulatory module determines grain size and yield in rice.
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OsmiR396c-OsGRF4-OsGIF1 调控模块决定水稻的籽粒大小和产量
DOI:
10.1111/pbi.12569
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发表时间:
2016-11
影响因子:
13.8
通讯作者:
Li P
中科院分区:
文献类型:
--
作者:
Li S;Gao F;Xie K;Zeng X;Cao Y;Zeng J;He Z;Ren Y;Li W;Deng Q;Wang S;Zheng A;Zhu J;Liu H;Wang L;Li P
Grain weight is the most important component of rice yield and is mainly determined by grain size, which is generally controlled by quantitative trait loci (QTLs). Although numerous QTLs that regulate grain weight have been identified, the genetic network that controls grain size remains unclear. Herein, we report the cloning and functional analysis of a dominant QTL, grain length and width 2 (GLW2), which positively regulates grain weight by simultaneously increasing grain length and width. The GLW2 locus encodes OsGRF4 (growth‐regulating factor 4) and is regulated by the microRNA miR396c in vivo. The mutation in OsGRF4 perturbs the OsmiR396 target regulation of OsGRF4, generating a larger grain size and enhanced grain yield. We also demonstrate that OsGIF1 (GRF‐interacting factors 1) directly interacts with OsGRF4, and increasing its expression improves grain size. Our results suggest that the miR396c‐OsGRF4‐OsGIF1 regulatory module plays an important role in grain size determination and holds implications for rice yield improvement.
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影响因子:
6.9
作者:
Liu J;Hua W;Yang HL;Zhan GM;Li RJ;Deng LB;Wang XF;Liu GH;Wang HZ
通讯作者:
Wang HZ
影响因子:
30.8
作者:
Li, Yibo;Fan, Chuchuan;Zhang, Qifa
通讯作者:
Zhang, Qifa
影响因子:
7.2
作者:
Kim, JH;Choi, DS;Kende, H
通讯作者:
Kende, H
影响因子:
7.4
作者:
Kuijt, Suzanne J. H.;Greco, Raffaella;Ouwerkerk, Pieter B. F.
通讯作者:
Ouwerkerk, Pieter B. F.
影响因子:
--
作者:
Kramer, Martha F
通讯作者:
Kramer, Martha F