A rice geranylgeranyl reductase is essential for chloroplast development  

作　　者：LIU Xi YI Xin YANG Yan-rong HUANG Qian-qian 

机构地区：[1]Jiangsu Collaborative Innovation Center of Regional Modern Agriculture and Environmental Protection/Jiangsu Key Laboratory for Eco-Agricultural Biotechnology Around Hongze Lake,Huaiyin Normal University,Huai’an 223300,P.R.China

出　　处：《Journal of Integrative Agriculture》2021年第10期2592-2600,共9页农业科学学报（英文版）

基　　金：This work was supported by the National Natural Science Foundation of China(31900388);the Natural Science Foundation of Jiangsu Province,China(BK20191055);the Natural Science Foundation of Colleges of Jiangsu Province,China(19KJB180009).

摘　　要：Chloroplasts are essential for plant photosynthesis and growth.Many genes have been identified that regulate plant chloroplast development.However,it is not known at a molecular level how these genes regulate chloroplast biogenesis.In this study,we isolated a mutant ygl2(yellow-green leaf2)that exhibited a pigment-defective phenotype.YGL2 encodes a geranylgeranyl reductase,and in mutant ygl2,there was a single base change(T1361G)located in the third exon of YGL2 that resulted in a missense mutation(L454R)in the encoded product.Transmission electron microscopy revealed that chloroplast development was impaired in the ygl2 mutant.The expression levels of plastid-encoded genes were significantly altered in the ygl2 mutant.Furthermore,in a yeast two-hybrid assay,we found that YGL2 interacted with the RNA editing factor MORF8.

关 键 词：rice(Oryza sativa L.) CHLOROPLAST YGL2 geranylgeranyl reductase 

分 类 号：S511[农业科学—作物学]