論文

査読有り 責任著者 本文へのリンクあり
2016年4月

Detection of QTLS for traits associated with pre-harvest sprouting resistance in bread wheat (Triticum aestivum L.)

Breeding Science
  • Cao L, Hayashi K, Tokui M, Mori M, Miura H, Onishi K (Corresponding author)

66
2
開始ページ
260
終了ページ
270
記述言語
掲載種別
研究論文(学術雑誌)
DOI
10.1270/jsbbs.66.260

© 2016, Japanese Society of Breeding. All rights reserved. Pre-harvest sprouting (PHS) is one of the serious problems for wheat production, especially in rainy regions. Although seed dormancy is the most critical trait for PHS resistance, the control of heading time should also be considered to prevent seed maturation during unfavorable conditions. In addition, awning is known to enhance water absorption by the spike, causing PHS. In this study, we conducted QTL analysis for three PHS resistant related traits, seed dormancy, heading time and awn length, by using recombinant inbred lines from ‘Zenkouji-komugi’ (high PHS resistance) × ‘Chinese Spring’ (weak PHS resistance). QTLs for seed dormancy were detected on chromosomes 1B (QDor-1B) and 4A (QDor-4A), in addition to a QTL on chromosome 3A, which was recently cloned as TaMFT-3A. In addition, the accumulation of the QTLs and their epistatic interactions contributed significantly to a higher level of dormancy. QDor-4A is co-located with the Hooded locus for awn development. Furthermore, an effective QTL, which confers early heading by the Zenkouji-komugi allele, was detected on the short arm of chromosome 7B, where the Vrn-B3 locus is located. Understanding the genetic architecture of traits associated with PHS resistance will facilitate the marker assisted selection to breed new varieties with higher PHS resistance.

リンク情報
DOI
https://doi.org/10.1270/jsbbs.66.260
Scopus
https://www.scopus.com/inward/record.uri?partnerID=HzOxMe3b&scp=84962787177&origin=inward 本文へのリンクあり
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https://www.scopus.com/inward/citedby.uri?partnerID=HzOxMe3b&scp=84962787177&origin=inward
ID情報
  • DOI : 10.1270/jsbbs.66.260
  • ISSN : 1344-7610
  • eISSN : 1347-3735
  • SCOPUS ID : 84962787177

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