title: Natural variation in Hd17, a homolog of Arabidopsis ELF3 that is involved in rice photoperiodic flowering.
abstract: Flowering time of rice depends strongly on photoperiodic responses. We previously identified a quantitative trait locus, Heading date 17 (Hd17), that is associated with a difference in flowering time between Japanese rice (Oryza sativa L.) cultivars. Here, we show that the difference may result from a single nucleotide polymorphism within a putative gene that encodes a homolog of the Arabidopsis EARLY FLOWERING 3 protein, which plays important roles in maintaining circadian rhythms. Our results demonstrate that natural variation in Hd17 may change the transcription level of a flowering repressor, Grain number, plant height and heading date 7 (Ghd7), suggesting that Hd17 is part of rice's photoperiodic flowering pathway.
authors.affiliation: National Institute of Agrobiological Sciences, Tsukuba, Ibaraki, Japan.
authors.forename: Kazuki
authors.initials: K
authors.lastname: Matsubara
authors.forename: Eri
authors.initials: E
authors.lastname: Ogiso-Tanaka
authors.forename: Kiyosumi
authors.initials: K
authors.lastname: Hori
authors.forename: Kaworu
authors.initials: K
authors.lastname: Ebana
authors.forename: Tsuyu
authors.initials: T
authors.lastname: Ando
authors.forename: Masahiro
authors.initials: M
authors.lastname: Yano
mesh_terms: D029681:Arabidopsis Proteins / Q000235:genetics / Q000378:metabolism*; D002940:Circadian Rhythm; D035264:Flowers / Q000235:genetics / Q000378:metabolism*; D018506:Gene Expression Regulation, Plant; D012275:Oryza / Q000235:genetics / Q000378:metabolism* / Q000502:physiology*; D017440:Photoperiod; D010940:Plant Proteins / Q000235:genetics / Q000378:metabolism*; D014157:Transcription Factors / Q000235:genetics / Q000378:metabolism*
chemical_list: D029681:Arabidopsis Proteins; D010940:Plant Proteins; D014157:Transcription Factors; C432430:At2g25930 protein, Arabidopsis