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Control of rice grain-filling and yield by a gene with a potential signature of domestication
Wang, E; Wang, J; Zhu, XD; Hao, W; Wang, LY; Li, Q; Zhang, LX; He, W; Lu, BR; Lin, HX; Ma, H; Zhang, GQ; He, ZH
2008
Source PublicationNATURE GENETICS
ISSN1061-4036
Volume40Issue:11Pages:1370-1374
AbstractGrain-filling, an important trait that contributes greatly to grain weight, is regulated by quantitative trait loci and is associated with crop domestication syndrome(1-4). However, the genes and underlying molecular mechanisms controlling crop grain-filling remain elusive. Here we report the isolation and functional analysis of the rice GIF1 (GRAIN INCOMPLETE FILLING 1) gene that encodes a cell-wall invertase required for carbon partitioning during early grain-filling. The cultivated GIF1 gene shows a restricted expression pattern during grain-filling compared to the wild rice allele, probably a result of accumulated mutations in the gene's regulatory sequence through domestication. Fine mapping with introgression lines revealed that the wild rice GIF1 is responsible for grain weight reduction. Ectopic expression of the cultivated GIF1 gene with the 35S or rice Waxy promoter resulted in smaller grains, whereas overexpression of GIF1 driven by its native promoter increased grain production. These findings, together with the domestication signature that we identified by comparing nucleotide diversity of the GIF1 loci between cultivated and wild rice, strongly suggest that GIF1 is a potential domestication gene and that such a domestication-selected gene can be used for further crop improvement.
KeywordCell-wall Invertase Oryza-sativa L. Quantitative Trait Loci Maize Domestication Encodes Selection Weight Genome Plant Endosperm
Indexed ByWOS:000260501500033
Language英语
Document Type期刊论文
Identifierhttp://ir.xtbg.org.cn/handle/353005/10245
Collection文献共享
Recommended Citation
GB/T 7714
Wang, E,Wang, J,Zhu, XD,et al. Control of rice grain-filling and yield by a gene with a potential signature of domestication[J]. NATURE GENETICS,2008,40(11):1370-1374.
APA Wang, E.,Wang, J.,Zhu, XD.,Hao, W.,Wang, LY.,...&He, ZH.(2008).Control of rice grain-filling and yield by a gene with a potential signature of domestication.NATURE GENETICS,40(11),1370-1374.
MLA Wang, E,et al."Control of rice grain-filling and yield by a gene with a potential signature of domestication".NATURE GENETICS 40.11(2008):1370-1374.
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