Bioscience and Biotechnology Center, Nagoya University, Nagoya, Japan.
Nat Genet. 2010 Jun;42(6):545-9. doi: 10.1038/ng.592. Epub 2010 May 23.
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.
为了实现粮食安全,我们需要鉴定能够提高作物产量并产生更高产品种的等位基因。在这里,我们表明,数量性状位点 WFP(富农穗)编码 OsSPL14(伞形花蛋白结合蛋白样 14,也称为 IPA1)。在生殖阶段,OsSPL14 的高表达促进了穗分枝和水稻更高的籽粒产量。OsSPL14 在营养阶段控制着枝条分枝,并且受 microRNA 切除的影响。我们还证明了利用 OsSLP14(WFP)等位基因增加水稻作物产量的可行性。将高产 OsSPL14(WFP)等位基因导入标准水稻品种 Nipponbare 导致水稻产量增加。