A new Arabidopsis mutant induced by ion beams affects flavonoid synthesis with spotted pigmentation in testa.

DOI Web Site Web Site PubMed 被引用文献13件 参考文献38件
  • Tanaka Atsushi
    Advanced Science Research Center, Japan Atomic Energy Research Institute
  • Tano Shigemitsu
    Advanced Science Research Center, Japan Atomic Energy Research Institute
  • Chantes Thanes
    Advanced Science Research Center, Japan Atomic Energy Research Institute
  • Yokota Yukihiko
    Advanced Science Research Center, Japan Atomic Energy Research Institute
  • Shikazono Naoya
    Advanced Science Research Center, Japan Atomic Energy Research Institute
  • Watanabe Hiroshi
    Advanced Science Research Center, Japan Atomic Energy Research Institute

書誌事項

タイトル別名
  • new Arabidopsis mutant induced by ion b

この論文をさがす

抄録

A new stable mutant of Arabidopsis thaliana with a spotted pigment in the seed coat, named anthocyanin spotted testa (ast), was induced by carbon ion irradiation. The spotted pigmentation of ast mutant was observed in immature seeds from 1-2 days after flowering (DAF), at the integument of the ovule, and spread as the seed coat formed. Anthocyanin accumulation was about 6 times higher in ast mutant than in the wild-type at 6 DAF of the immature seeds, but was almost the same in mature dry seeds. A higher anthocyanin accumulation was not observed in the seedlings, leaves or floral buds of ast mutant compared with the wild-type, which suggests that a high accumulation of anthocyanins is specific to the seed coat of the immature ast seeds. Reciprocal crosses between ast mutant and the wild-type indicated that ast is a single recessive gene mutation and segregates as a delayed inher-itance. The results of crossing with tt7 and ttg mutants also confirmed that the AST gene is probably a regulatory locus that controls flavonoid biosynthesis. A mapping analysis revealed that the gene is located on chromosome I and is closely linked to the SSLP DNA marker nga280 with a distance of 3.2 cM. AST has been registered as a new mutant of Arabidopsis.<br>

収録刊行物

被引用文献 (13)*注記

もっと見る

参考文献 (38)*注記

もっと見る

キーワード

詳細情報 詳細情報について

問題の指摘

ページトップへ