OsSPL14 promotes panicle branching and higher grain productivity in rice.
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.
Miura
Kotaro
K
Bioscience and Biotechnology Center, Nagoya University, Nagoya, Japan.
Ikeda
Mayuko
M
Matsubara
Atsushi
A
Song
Xian-Jun
XJ
Ito
Midori
M
Asano
Kenji
K
Matsuoka
Makoto
M
Kitano
Hidemi
H
Ashikari
Motoyuki
M
D000483:Alleles; D018556:Crops, Agricultural; D005240:Feasibility Studies; D018506:Gene Expression Regulation, Plant; D017343:Genes, Plant; D012275:Oryza / Q000235:genetics* / Q000254:growth & development*; D018514:Plant Structures; D030821:Plants, Genetically Modified; D040641:Quantitative Trait Loci