RRC ID 30986
著者 Ishibashi N, Setoguchi H.
タイトル Polymorphism of DNA sequences of cryptochrome genes is not associated with the photoperiodic flowering of wild soybean along a latitudinal cline.
ジャーナル J Plant Res
Abstract Both cultivated soybean and its wild relative Glycine soja exhibit strong photoperiodic sensitivity at different latitudes. Recent studies have demonstrated that the blue light-absorbing cryptochrome gene, CRY1a, is involved in the photoperiodic flowering of soybeans. However, no sequence variation was found in the cDNA among cultivars at different latitudinal clines. In the present study, we examined whether positive selection due to polymorphisms in the cryptochrome genes of G. soja occurs. Partial DNA sequences, mainly exons, of cryptochrome genes CRY1a-1d and CRY2a-2c were analyzed for 18 accessions in the Japanese archipelago. The neutral evolutionary pattern of the polymorphisms for all cryptochrome genes except for CRY1a was summarized using Tajima's D test and low nucleotide diversity was shown for all genes. Although CRY1a did not show neutral evolution, balancing selection was recognized in the intron while not in the exon. No geographical pattern of polymorphisms was observed in the cryptochrome genes. These results reject the possibility of cryptochrome genes being involved in the photoperiodic flowering of wild soybeans along a latitudinal cline.
巻・号 125(4)
ページ 483-8
公開日 2012-7-1
DOI 10.1007/s10265-011-0470-6
PMID 22252378
MeSH Base Sequence Cryptochromes / genetics* Evolution, Molecular Flowers / genetics* Flowers / growth & development* Genes, Plant* Genotype Geography Japan Photoperiod Polymorphism, Genetic* Soybean Proteins / genetics* Soybeans / genetics* Soybeans / growth & development*
IF 2.185
引用数 2
WOS 分野 PLANT SCIENCES
リソース情報
ミヤコグサ・ダイズ G. soja