Genetic structure of landraces in foxtail millet (<i>Setaria italica</i>(L.) P. Beauv.) revealed with transposon display and interpretation to crop evolution of foxtail millet

DOI Web Site Web Site 被引用文献5件
  • Ryoko Hirano
    Gene Research Center, University of Tsukuba, Tsukuba, Ibaraki 305-8572, Japan.
  • Ken Naito
    Gene Bank, National Institute of Agrobiological Sciences, Tsukuba 305-8602, Japan.
  • Kenji Fukunaga
    Faculty of Life and Environmental Sciences, Prefectural University of Hiroshima, Shobara, Hiroshima 727-0023, Japan.
  • Kazuo N. Watanabe
    Graduate School of Life and Environmental Sciences, University of Tsukuba, Tsukuba, Ibaraki 305-8572, Japan.
  • Ryo Ohsawa
    Graduate School of Life and Environmental Sciences, University of Tsukuba, Tsukuba, Ibaraki 305-8572, Japan.
  • Makoto Kawase
    Gene Bank, National Institute of Agrobiological Sciences, Tsukuba 305-8602, Japan.
  • Francois Belzile
    editor

抄録

<jats:p>Although the origin and domestication process of foxtail millet (Setaria italica subsp. italica (L.) P. Beauv.) has been studied by several groups, the issue is still ambiguous. It is essential to resolve this issue by studying a large number of accessions with sufficient markers covering the entire genome. Genetic structures were analyzed by transposon display (TD) using 425 accessions of foxtail millet and 12 of the wild ancestor green foxtail (Setaria italica subsp. viridis (L.) P. Beauv.). We used three recently active transposons (TSI-1, TSI-7, and TSI-10) as genome-wide markers and succeeded in demonstrating geographical structures of the foxtail millet. A neighbor-joining dendrogram based on TD grouped the foxtail millet accessions into eight major clusters, each of which consisted of accessions collected from adjacent geographical areas. Eleven out of 12 green foxtail accessions were grouped separately from the clusters of foxtail millet. These results indicated strong regional differentiations and a long history of cultivation in each region. Furthermore, we discuss the relationship between foxtail millet and green foxtail and suggest a monophyletic origin of foxtail millet domestication.</jats:p>

収録刊行物

  • Genome

    Genome 54 (6), 498-506, 2011-06

    Canadian Science Publishing

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