Convergent selection of a WD40 protein that enhances grain yield in maize and rice

被引：199

作者：

Chen, Wenkang ^{[1
,2
]}

Chen, Lu ^{[3
,9
,10
]}

Zhang, Xuan ^{[1
,2
]}

Yang, Ning ^{[3
,4
]}

Guo, Jianghua ^{[1
,2
]}

Wang, Min ^{[1
,2
]}

Ji, Shenghui ^{[1
,2
]}

Zhao, Xiangyu ^{[1
,2
]}

Yin, Pengfei ^{[1
,2
]}

Cai, Lichun ^{[1
,2
]}

Xu, Jing ^{[1
,2
]}

Zhang, Lili ^{[1
,2
]}

Han, Yingjia ^{[1
,2
]}

Xiao, Yingni ^{[1
,2
]}

Xu, Gen ^{[1
,2
]}

Wang, Yuebin ^{[3
]}

Wang, Shuhui ^{[1
,2
]}

Wu, Sheng ^{[1
,2
]}

Yang, Fang ^{[3
,4
]}

Jackson, David ^{[3
,5
]}

Cheng, Jinkui ^{[1
,2
,6
]}

Chen, Saihua ^{[7
]}

Sun, Chuanqing ^{[1
,2
]}

Qin, Feng ^{[1
,2
,6
]}

Tian, Feng ^{[1
,2
,6
]}

Fernie, Alisdair R. ^{[8
]}

Li, Jiansheng ^{[1
,2
,6
]}

Yan, Jianbing ^{[3
,4
]}

Yang, Xiaohong ^{[1
,2
,6
]}

机构：

[1] China Agr Univ, State Key Lab Plant Physiol & Biochem, Beijing 100193, Peoples R China

[2] China Agr Univ, Natl Maize Improvement Ctr China, Beijing 100193, Peoples R China

[3] Huazhong Agr Univ, Natl Key Lab Crop Genet Improvement, Wuhan 430070, Peoples R China

[4] Hubei Hongshan Lab, Wuhan 430070, Peoples R China

[5] Cold Spring Harbor Lab, POB 100, Cold Spring Harbor, NY 11724 USA

[6] China Agr Univ, Ctr Crop Funct Genom & Mol Breeding, Beijing 100193, Peoples R China

[7] Yangzhou Univ, Minist Educ, Key Lab Plant Funct Genom, Yangzhou 225009, Jiangsu, Peoples R China

[8] Max Planck Inst Mol Plant Physiol, Dept Mol Physiol, D-14476 Potsdam, Germany

[9] Chinese Acad Sci, Inst Genet & Dev Biol, State Key Lab Plant Genom, Beijing 100101, Peoples R China

[10] Chinese Acad Sci, Inst Genet & Dev Biol, Natl Ctr Plant Gene Res, Beijing 100101, Peoples R China

来源：

SCIENCE | 2022年 / 375卷 / 6587期

基金：

中国国家自然科学基金; 美国国家科学基金会;

关键词：

PLANT ARCHITECTURE; READ ALIGNMENT; DOMESTICATION; GENOME; POPULATION; GENE; IDENTIFICATION; ASSOCIATION; TRAITS; MODEL;

D O I：

10.1126/science.abg7985

中图分类号：

O [数理科学和化学]; P [天文学、地球科学]; Q [生物科学]; N [自然科学总论];

学科分类号：

07 ; 0710 ; 09 ;

摘要：

A better understanding of the extent of convergent selection among crops could greatly improve breeding programs. We found that the quantitative trait locus KRN2 in maize and its rice ortholog, OsKRN2, experienced convergent selection. These orthologs encode WD40 proteins and interact with a gene of unknown function, DUF1644, to negatively regulate grain number in both crops. Knockout of KRN2 in maize or OsKRN2 in rice increased grain yield by similar to 10% and similar to 8%, respectively, with no apparent trade-offs in other agronomic traits. Furthermore, genome-wide scans identified 490 pairs of orthologous genes that underwent convergent selection during maize and rice evolution, and these were enriched for two shared molecular pathways. KRN2, together with other convergently selected genes, provides an excellent target for future crop improvement.

引用

页码：1372 / +

页数：79

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