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Novel quantitative trait loci for low grain cadmium concentration in common wheat (Triticum aestivum L.).

Authors
  • Ban, Yusuke1
  • Ishikawa, Goro2
  • Ueda, Hiroaki3
  • Ishikawa, Naoyuki1
  • Kato, Keita1
  • Takata, Kanenori1
  • Matsuyama, Minoru4
  • Handa, Hirokazu2
  • Nakamura, Toshiki5
  • Yanaka, Mikiko1
  • 1 NARO Western Region Agricultural Research Center, 6-12-1 Nishifukatsu-cho, Fukuyama, Hiroshima 721-8514, Japan. , (Japan)
  • 2 NARO Institute of Crop Science, 2-1-2 Kannondai, Tsukuba, Ibaraki 305-8602, Japan. , (Japan)
  • 3 Graduate School of Science, Hiroshima University, 1-4-3 Kagamiyama, Higashi-Hiroshima, Hiroshima 739-8526, Japan. , (Japan)
  • 4 Hyogo Prefectural Technology Center for Agriculture, Forestry and Fisheries, 1533 Befu-cho, Kasai, Hyogo 679-0198, Japan. , (Japan)
  • 5 NARO Tohoku Agricultural Research Center, 4 Akahira, Shimo-kuriyagawa, Morioka, Iwate 020-0198, Japan. , (Japan)
Type
Published Article
Journal
Breeding science
Publication Date
Jun 01, 2020
Volume
70
Issue
3
Pages
331–341
Identifiers
DOI: 10.1270/jsbbs.19150
PMID: 32714055
Source
Medline
Keywords
Language
English
License
Unknown

Abstract

Cadmium (Cd) is as an extremely toxic metal that can contaminate agricultural soils. To reduce the risk of Cd intake in food cereals, the development of cultivars with low grain Cd concentration (GCC) is an effective countermeasure. We analyzed quantitative trait loci (QTLs) for GCC in a doubled haploid (DH) common wheat (Triticum aestivum L.) population derived from 'Chugoku 165' (low GCC) × 'Chukei 10-22' (high GCC). We found novel loci for low GCC on the short arm of chromosome 4B and on the long arm of chromosome 6B. These QTLs accounted for 9.4%-25.4% (4B) and 9.0%-17.8% (6B) of the phenotypic variance in the DH population. An association analysis with 43 cultivars identified 3 loci at these QTLs: QCdc.4B-kita, QCdc.6B-kita1, and QCdc.6B-kita2. In contrast to durum wheat and barley, no QTL was detected on the chromosomes of homeologous group 5 for heavy metal P1B-type ATPase 3. These results will contribute to marker-assisted selection for low GCC in breeding of common wheat. Copyright © 2020 by JAPANESE SOCIETY OF BREEDING.

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