OsSPL14 Promotes Panicle Branching and Higher Grain Productivity in Rice

Overview

Journal Nat Genet

Specialty Genetics

Date 2010 May 25

PMID 20495564

Citations 454

Authors

Kotaro Miura

Mayuko Ikeda

Atsushi Matsubara

Xian-Jun Song

Midori Ito

Kenji Asano

Makoto Matsuoka

Hidemi Kitano

Motoyuki Ashikari

Affiliations

Soon will be listed here.

Abstract

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.

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