OsSPL14 promotes panicle branching and higher grain productivity in rice
OsSPL14 promotes panicle branching and higher grain productivity in rice
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DOI：
10.1038/ng.592
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发表时间：
2010-06-01
期刊：
影响因子：
30.8
通讯作者：
Ashikari, Motoyuki
中科院分区：
文献类型：
--
作者：
Miura, Kotaro;Ikeda, Mayuko;Ashikari, Motoyuki
为了粮食安全，需要鉴定能提高作物产量和高产品种的等位基因。在这里，我们展示了数量性状位点WFP（富裕农民穗）编码OsSPL14 （SQUAMOSA启动子结合蛋白样14，也称为IPA1）。OsSPL14在生殖期的高表达促进了水稻穗部分化，提高了产量。OsSPL14在营养期控制茎的分枝，并受microRNA切除的影响。我们还论证了利用OsSLP14（WFP）等位基因提高水稻产量的可行性。将高产OsSPL14（WFP）等位基因引入标准水稻品种“日本裸”，提高了水稻产量。
Identification of alleles that improve crop production and lead to higher-yielding varieties are needed for food security. Here we show that the quantitative trait locus WFP (WEALTHY FARMER'S PANICLE) encodes OsSPL14 (SQUAMOSA PROMOTER BINDING PROTEIN-LIKE 14, also known as IPA1). Higher expression of OsSPL14 in the reproductive stage promotes panicle branching and higher grain yield in rice. OsSPL14 controls shoot branching in the vegetative stage and is affected by microRNA excision. We also demonstrate the feasibility of using the OsSLP14(WFP) allele to increase rice crop yield. Introduction of the high-yielding OsSPL14(WFP) allele into the standard rice variety Nipponbare resulted in increased rice production.