論文

査読有り 国際誌
2018年2月21日

An efficient approach for the development of genome-specific markers in allohexaploid wheat (Triticum aestivum L.) and its application in the construction of high-density linkage maps of the D genome.

DNA research : an international journal for rapid publication of reports on genes and genomes
  • Goro Ishikawa
  • ,
  • Mika Saito
  • ,
  • Tsuyoshi Tanaka
  • ,
  • Yuichi Katayose
  • ,
  • Hiroyuki Kanamori
  • ,
  • Kanako Kurita
  • ,
  • Toshiki Nakamura

記述言語
英語
掲載種別
研究論文(学術雑誌)
DOI
10.1093/dnares/dsy004

In common wheat, the development of genotyping platforms has been hampered by the large size of the genome, its highly repetitive elements and its allohexaploid nature. However, recent advances in sequencing technology provide opportunities to resolve these difficulties. Using next-generation sequencing and gene-targeting sequence capture, 12,551 nucleotide polymorphisms were detected in the common wheat varieties 'Hatsumochi' and 'Kitahonami' and were assigned to chromosome arms using International Wheat Genome Sequencing Consortium survey sequences. Because the number of markers for D genome chromosomes in commercially available wheat single nucleotide polymorphism arrays is insufficient, we developed markers using a genome-specific amplicon sequencing strategy. Approximately 80% of the designed primers successfully amplified D genome-specific products, suggesting that by concentrating on a specific subgenome, we were able to design successful markers as efficiently as could be done in a diploid species. The newly developed markers were uniformly distributed across the D genome and greatly extended the total coverage. Polymorphisms were surveyed in six varieties, and 31,542 polymorphic sites and 5,986 potential marker sites were detected in the D genome. The marker development and genotyping strategies are cost effective, robust and flexible and may enhance multi-sample studies in the post-genomic era in wheat.

リンク情報
DOI
https://doi.org/10.1093/dnares/dsy004
PubMed
https://www.ncbi.nlm.nih.gov/pubmed/29481583
PubMed Central
https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6014326
ID情報
  • DOI : 10.1093/dnares/dsy004
  • ISSN : 1340-2838
  • PubMed ID : 29481583
  • PubMed Central 記事ID : PMC6014326

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