GS9 acts as a transcriptional activator to regulate rice grain shape and appearance quality.
GS9 acts as a transcriptional activator to regulate rice grain shape and appearance quality.
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GS9作为转录激活剂调节稻米粒形和外观品质
DOI：
10.1038/s41467-018-03616-y
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发表时间：
2018-03-27
影响因子：
16.6
通讯作者：
Liu QQ
中科院分区：
文献类型：
--
作者：
Zhao DS;Li QF;Zhang CQ;Zhang C;Yang QQ;Pan LX;Ren XY;Lu J;Gu MH;Liu QQ
对粒形决定基因的研究有助于选育粒形和外观品质优良的水稻品种。本研究通过图位克隆的方法鉴定了9号染色体上的粒形基因GS9。gs9无效突变体具有细长的谷粒，而过表达GS9导致圆形谷粒。GS9编码的蛋白没有已知的保守功能结构域。它通过改变细胞分裂来调节谷物形状。GS 9与卵形家族蛋白OsOFP 14和OsOFP 8的相互作用由OsGSK 2激酶调节，OsGSK 2激酶是油菜素类固醇信号通路的关键调节因子。遗传互作分析表明，GS 9功能独立于其他先前确定的粒度基因。将gs9等位基因导入优良水稻品种显著改善了粒形和外观品质。这表明gs9基因单独或与其它粒型决定基因组合在水稻粒形优化育种中具有潜在的应用价值。稻米粒形是影响稻米产量和外观品质的重要性状。在这里，作者将GS9鉴定为细长粒的负转录调节因子，并表明它可以独立于其他先前鉴定的粒度基因来改善粒形和外观。
Identification of grain shape determining genes can facilitate breeding of rice cultivars with optimal grain shape and appearance quality. Here, we identify GS9 (Grain Shape Gene on Chromosome 9) gene by map-based cloning. The gs9 null mutant has slender grains, while overexpression GS9 results in round grains. GS9 encodes a protein without known conserved functional domain. It regulates grain shape by altering cell division. The interaction of GS9 and ovate family proteins OsOFP14 and OsOFP8 is modulated by OsGSK2 kinase, a key regulator of the brassinosteroids signaling pathway. Genetic interaction analysis reveals that GS9 functions independently from other previously identified grain size genes. Introducing the gs9 allele into elite rice cultivars significantly improves grain shape and appearance quality. It suggests potential application of gs9, alone or in combination with other grain size determining genes, in breeding of rice varieties with optimized grain shape. Rice grain shape or size is an important trait associated with both yield and appearance quality. Here, the authors identify GS9 as a negative transcription regulator of slender grain and show it can improve grain shape and appearance independently from other previously identified grain size genes.
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DOI：
10.1186/s12284-015-0066-1
发表时间：
2015-12
期刊：
Rice (New York, N.Y.)
影响因子：
--
作者：
Lee CM;Park J;Kim B;Seo J;Lee G;Jang S;Koh HJ
通讯作者：
Koh HJ
GS5 的自然变异在调节水稻籽粒大小和产量方面发挥着重要作用
影响因子：
30.8
作者：
Li, Yibo;Fan, Chuchuan;Zhang, Qifa
通讯作者：
Zhang, Qifa
OsmiR396 对 OsGRF4 的调节控制水稻的籽粒大小和产量
影响因子：
18
作者：
Duan, Penggen;Ni, Shen;Li, Yunhai
通讯作者：
Li, Yunhai
GSE5 启动子的自然变异有助于水稻粒度的多样性
影响因子：
27.5
作者：
Duan, Penggen;Xu, Jinsong;Li, Yunhai
通讯作者：
Li, Yunhai
影响因子：
3.7
作者：
Calingacion M;Laborte A;Nelson A;Resurreccion A;Concepcion JC;Daygon VD;Mumm R;Reinke R;Dipti S;Bassinello PZ;Manful J;Sophany S;Lara KC;Bao J;Xie L;Loaiza K;El-hissewy A;Gayin J;Sharma N;Rajeswari S;Manonmani S;Rani NS;Kota S;Indrasari SD;Habibi F;Hosseini M;Tavasoli F;Suzuki K;Umemoto T;Boualaphanh C;Lee HH;Hung YP;Ramli A;Aung PP;Ahmad R;Wattoo JI;Bandonill E;Romero M;Brites CM;Hafeel R;Lur HS;Cheaupun K;Jongdee S;Blanco P;Bryant R;Thi Lang N;Hall RD;Fitzgerald M
通讯作者：
Fitzgerald M