NARROW AND ROLLED LEAF 9,a Novel Gene Encoding 20S Proteasome β1 Subunit that Regulates Leaf Morphology and Grain Size in Rice  

作　　者：KANG Fengyu ZHOU Liang CHEN Wenqiang# HUANG Pingliang Amos Musyoki MAWIA LUO Ju HU Peisong 

机构地区：[1]State Key Laboratory of Rice Biology and Breeding,China National Rice Research Institute,Hangzhou 310006,China

出　　处：《Rice science》2025年第2期143-146,I0004-I0015,共16页水稻科学(英文版)

基　　金：supported by the National Major Science and Technology Program on New Genetically Modified Organism Variety Breeding,China(Grant No.2016ZX08001-001).

摘　　要：Rice leaf morphology is of great significance in the breeding of an ideal plant type and high photosynthetic efficiency.A forward genetics approach was employed to locate a novel gene,NRL9(NARROW AND ROLLED LEAF 9).NRL9 encodes a 20S proteasome β1 subunit and is involved in regulating leaf morphology and grain size.Compared with the wild type(WT),the nrl9 mutant exhibited a significant decrease in leaf width,and a significant increase in leaf rolling index(LRI),while also displaying increased grain length and decreased grain width.

关 键 词：BREEDING GRAIN ROW 

分 类 号：S51[农业科学—作物学]