A major quantitative trait locus for cold-responsive gene expression is linked to frost-resistance gene Fr-A2 in common wheat

• Motomura Yoichi

  Graduate School of Agricultural Science, Kobe University

• Kobayashi Fuminori

  Plant Genome Research Unit, National Institute of Agrobiological Sciences

• Iehisa Julio C. M.

  Graduate School of Agricultural Science, Kobe University

• Takumi Shigeo

  Graduate School of Agricultural Science, Kobe University

書誌事項

タイトル別名

• A major quantitative trait locus for cold-responsive gene expression is linked to frost-resistance gene <i>Fr-A2</i> in common wheat

抄録

Low temperature induces expression of Cor (cold-responsive)/Lea (late embryogenesis-abundant) gene family members through C-repeat binding factor (CBF) transcription factors in common wheat. However, the relationship between the genetic loci controlling cold-responsive gene expression and freezing tolerance is unclear. In expression quantitative trait locus (eQTL) analysis, accumulated transcripts of Cor/Lea and CBF genes were quantified in recombinant inbred lines derived from a cross between two common wheat cultivars with different levels of freezing tolerance. Four eQTLs controlling five cold-responsive genes were found, and the major eQTL with the greatest effect was located on the long arm of chromosome 5A. At least the 1D and 5A eQTLs played important roles in development of freezing tolerance in common wheat. The chromosomal location of the 5A eQTL, controlling four cold-responsive genes, coincided with a region homoeologous to a frost-tolerance locus (Fr-A^m2) reported as a CBF cluster region in einkorn wheat. The 5A eQTL plays a significant role through Cor/Lea gene expression in cold acclimation of wheat. In addition, our results suggest that one or more CBF copies at the Fr-2 region positively regulate other copies, which might amplify the positive effects of the CBF cluster on downstream Cor/Lea gene activation.

収録刊行物

• Ｂｒｅｅｄｉｎｇ　Ｓｃｉｅｎｃｅ

  Ｂｒｅｅｄｉｎｇ　Ｓｃｉｅｎｃｅ 63 (1), 58-67, 2013

  日本育種学会

キーワード

• <i>Triticum aestivum</i> L.
• cold acclimation
• freezing tolerance
• recombinant inbred lines
• transcript accumulation

詳細情報

• CRID: 1390001204723424384
• NII論文ID: 10031151525
• NII書誌ID: AA11317194
• DOI: 10.1270/jsbbs.63.58
• COI: 1:CAS:528:DC%2BC3sXptVOrsb4%3D
• ISSN: 13473735
• ISSN: 13447610
• HANDLE: 20.500.14094/90002723
• NDL書誌ID: 024360171
• PubMed: 23641182
• Web Site: https://ndlsearch.ndl.go.jp/books/R000000004-I024360171
• Web Site: https://www.jstage.jst.go.jp/article/jsbbs/63/1/63_58/_pdf
• 本文言語コード: en
• データソース種別:
  • JaLC
  • IRDB
  • NDL
  • Crossref
  • PubMed
  • CiNii Articles
• 抄録ライセンスフラグ: 使用不可