Level of VERNALIZATION 1 expression is correlated with earliness in extra early-flowering mutant wheat lines

• Nishiura Aiko

  Department of Bioscience, Fukui Prefectural University

• Kazama Yusuke

  RIKEN, Nishina Center

• Abe Tomoko

  RIKEN, Nishina Center

• Mizuno Nobuyuki

  Graduate School of Agriculture, Kyoto University

• Nasuda Shuhei

  Graduate School of Agriculture, Kyoto University

• Murai Koji

  Department of Bioscience, Fukui Prefectural University

書誌事項

タイトル別名

• Level of <i>VERNALIZATION 1</i> expression is correlated with earliness in <i>extra early-flowering</i> mutant wheat lines
• Level of <italic>VERNALIZATION 1</italic> expression is correlated with earliness in <italic>extra early-flowering</italic> mutant wheat lines

抄録

Four extra early-flowering mutants, named extra early-flowering1 (exe1), exe2, exe3, and exe4, were identified in Triticum monococcum strain KU104-1 following heavy-ion beam mutagenesis. The four exe mutants fell into two groups, namely Type I (moderately extra early-flowering type; exe1 and exe3) and Type II (extremely extra early-flowering type; exe2 and exe4). Analysis of plant development in a growth chamber showed that the speed of leaf emergence was accelerated in exe mutants at the reproductive stage compared to wild-type (WT) plants. The speed of leaf emergence was faster in Type II than Type I plants. Analysis of VERNALIZATION 1 (VRN1), a flowering promoter gene, showed that it was more highly expressed in seedlings at early developmental stages in Type II mutants than Type I mutants. These findings indicate that the difference in earliness between Type I and Type II mutants is associated with the level of VRN1 expression. The original KU104-1 is an einkorn wheat strain that carries a null allele of the VRN2 gene, a repressor of flowering. Thus, our results indicate that the level of VRN1 expression controls earliness in exe mutants independently of VRN2.

収録刊行物

• Ｂｒｅｅｄｉｎｇ　Ｓｃｉｅｎｃｅ

  Ｂｒｅｅｄｉｎｇ　Ｓｃｉｅｎｃｅ 64 (3), 213-221, 2014

  日本育種学会

キーワード

• early-flowering
• ion beam mutagenesis
• <i>VERNALIZATION 1</i>
• wheat
• <i>Triticum monococcum</i>

詳細情報

• CRID: 1390001204723429376
• NII論文ID: 130004690763
• NII書誌ID: AA11317194
• DOI: 10.1270/jsbbs.64.213
• ISSN: 13473735
• ISSN: 13447610
• NDL書誌ID: 025778612
• Web Site: https://ndlsearch.ndl.go.jp/books/R000000004-I025778612
• Web Site: https://www.jstage.jst.go.jp/article/jsbbs/64/3/64_213/_pdf
• 本文言語コード: en
• データソース種別:
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  • NDL
  • Crossref
  • CiNii Articles
  • KAKEN
• 抄録ライセンスフラグ: 使用不可