Quantitative trait locus analysis for flowering-related traits using two F₂ populations derived from crosses between Japanese common wheat cultivars and synthetic hexaploids

• Nguyen Anh T.

  Graduate School of Agricultural Science, Kobe University

• Nishijima Ryo

  Graduate School of Agricultural Science, Kobe University

• Kajimura Tomonori

  Graduate School of Agricultural Science, Kobe University

• Murai Koji

  Department of Bioscience, Fukui Prefectural University

• Takumi Shigeo

  Graduate School of Agricultural Science, Kobe University

書誌事項

タイトル別名

• Quantitative trait locus analysis for flowering-related traits using two F₂ populations derived from crosses between Japanese common wheat cultivars and synthetic hexaploids
• Quantitative trait locus analysis for flowering-related traits using F2 populations derived from crosses between Japanese common wheat cultivars and synthetic hexaploids

抄録

Flowering time is an important trait for Japanese wheat breeding. Aegilops tauschii, the D-genome donor of hexaploid wheat, is a useful resource to enlarge the D-genome diversity of common wheat. Previously, we identified flowering-related QTLs in F₂ populations of synthetic hexaploid wheat lines between the tetraploid wheat cultivar Langdon and Ae. tauschii accessions. Here, to evaluate the usefulness of the early-flowering alleles from Ae. tauschii for Japanese wheat breeding, QTL analyses were conducted in two F₂ populations derived from crosses between Japanese wheat cultivars and early-flowering lines of synthetic hexaploid wheat. Only two chromosomal regions controlling flowering-related traits were identified, on chromosomes 2DS and 5AL in the mapping populations, and no previously identified QTLs were found in the synthetic hexaploid lines. The strong effect of the 2DS QTL, putatively corresponding to Ppd-D1, was considered to hide any significant expression of other QTLs with small effects on flowering-related traits. When F₂ individuals carrying Ae. tauschii-homozygous alleles around the 2DS QTL region were selected, the Ae. tauschii-derived alleles of the previously identified flowering QTLs partly showed an early-flowering phenotype compared with the Japanese wheat-derived alleles. Thus, some early-flowering alleles from Ae. tauschii may be useful for production of early-flowering Japanese wheat cultivars.

収録刊行物

• Genes & Genetic Systems

  Genes & Genetic Systems 90 (2), 89-98, 2015

  日本遺伝学会

キーワード

• <i>Aegilops tauschii</i> Coss
• allopolyploidization
• flowering time
• <i>Triticum aestivum</i> L

詳細情報

• CRID: 1390282680450928256
• NII論文ID: 130005098890
• NII書誌ID: AA11077421
• DOI: 10.1266/ggs.90.89
• ISSN: 18805779
• ISSN: 13417568
• NDL書誌ID: 026733434
• PubMed: 26399768
• Web Site: https://ndlsearch.ndl.go.jp/books/R000000004-I026733434
• Web Site: https://www.jstage.jst.go.jp/article/ggs/90/2/90_89/_pdf
• 本文言語コード: en
• データソース種別:
  • JaLC
  • NDL
  • Crossref
  • PubMed
  • CiNii Articles
  • KAKEN
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