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- Title
Natural Variation in Hd17, a Homolog of Arabidopsis ELF3 That is Involved in Rice Photoperiodic Flowering.
- Authors
Matsubara, Kazuki; Ogiso-Tanaka, Eri; Hori, Kiyosumi; Ebana, Kaworu; Ando, Tsuyu; Yano, Masahiro
- 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.
- Subjects
ARABIDOPSIS; PHOTOPERIODISM; HOMOLOGY (Biology); RICE genetics; CULTIVARS; GENETIC polymorphisms; CIRCADIAN rhythms
- Publication
Plant & Cell Physiology, 2012, Vol 53, Issue 4, p709
- ISSN
0032-0781
- Publication type
Article
- DOI
10.1093/pcp/pcs028