RRC ID 21119
著者 Ishii T, Numaguchi K, Miura K, Yoshida K, Thanh PT, Htun TM, Yamasaki M, Komeda N, Matsumoto T, Terauchi R, Ishikawa R, Ashikari M.
タイトル OsLG1 regulates a closed panicle trait in domesticated rice.
ジャーナル Nat Genet
Abstract Reduction in seed shattering was an important phenotypic change during cereal domestication. Here we show that a simple morphological change in rice panicle shape, controlled by the SPR3 locus, has a large impact on seed-shedding and pollinating behaviors. In the wild genetic background of rice, we found that plants with a cultivated-like type of closed panicle had significantly reduced seed shedding through seed retention. In addition, the long awns in closed panicles disturbed the free exposure of anthers and stigmas on the flowering spikelets, resulting in a significant reduction of the outcrossing rate. We localized the SPR3 locus to a 9.3-kb genomic region, and our complementation tests suggest that this region regulates the liguleless gene (OsLG1). Sequencing analysis identified reduced nucleotide diversity and a selective sweep at the SPR3 locus in cultivated rice. Our results suggest that a closed panicle was a selected trait during rice domestication.
巻・号 45(4)
ページ 462-5, 465e1-2
公開日 2013-4-1
DOI 10.1038/ng.2567
PII ng.2567
PMID 23435087
MeSH Agriculture* Chromosomes, Plant Genes, Plant* Genome, Plant* High-Throughput Nucleotide Sequencing Oryza / genetics* Oryza / growth & development Phenotype Quantitative Trait Loci* Seeds / genetics*
IF 27.605
引用数 88
WOS 分野 GENETICS & HEREDITY
リソース情報
シロイヌナズナ / 植物培養細胞・遺伝子 rpd00105
イネ W0630