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Wheat frost tolerant genes derived from QTLs of six DH populations in reproductive stage
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  • Jingjuan Zhang,
  • Shahidul Islam,
  • Yun Zhao,
  • Masood Anwar,
  • Zaid Alhabbar,
  • Maoyun She,
  • Rongchang Yang,
  • Angela Juhasz,
  • Guixiang Tang,
  • Jiansheng Chen,
  • Hang Liu,
  • Yanjie Jiang,
  • Shengnan Zhai,
  • Xin Hu,
  • JunKang Rong,
  • Yingquan Zhang,
  • Yebo Qing,
  • Qier Liu,
  • Zitong Yu,
  • Yujuan Zhang,
  • Sadegh Balotf,
  • Mirza Dowla,
  • Sonia Afrin,
  • Nandita Roy,
  • Md Mallik,
  • Md Saieed,
  • Shanjida Rahman,
  • Nigarin Sultana,
  • Sarah Alsheikh Ahmed,
  • Chris Florides,
  • Kefei Chen,
  • Darshan Sharma,
  • Nathan Height,
  • Ben Biddulph,
  • Meiqin Lu,
  • Jorge Mayer,
  • Wujun Ma
Jingjuan Zhang
Murdoch University

Corresponding Author:[email protected]

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Shahidul Islam
Murdoch University
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Yun Zhao
Murdoch University
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Masood Anwar
Murdoch University
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Zaid Alhabbar
Murdoch University
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Maoyun She
Murdoch University
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Rongchang Yang
Murdoch University
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Angela Juhasz
Murdoch University
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Guixiang Tang
Murdoch University
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Jiansheng Chen
Murdoch University
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Hang Liu
Murdoch University
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Yanjie Jiang
Murdoch University
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Shengnan Zhai
Murdoch University
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Xin Hu
Murdoch University
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JunKang Rong
Zhejiang A and F University
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Yingquan Zhang
Murdoch University
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Yebo Qing
Murdoch University
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Qier Liu
Murdoch University
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Zitong Yu
Murdoch University
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Yujuan Zhang
Murdoch University
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Sadegh Balotf
Murdoch University
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Mirza Dowla
Murdoch University
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Sonia Afrin
Murdoch University
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Nandita Roy
Murdoch University
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Md Mallik
Murdoch University
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Md Saieed
Murdoch University
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Shanjida Rahman
Murdoch University
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Nigarin Sultana
Murdoch University
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Sarah Alsheikh Ahmed
Murdoch University
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Chris Florides
Murdoch University
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Kefei Chen
Curtin University
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Darshan Sharma
Western Australia Department of Primary Industries and Regional Development Agriculture and Food
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Nathan Height
Western Australia Department of Primary Industries and Regional Development Agriculture and Food
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Ben Biddulph
Western Australia Department of Primary Industries and Regional Development Agriculture and Food
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Meiqin Lu
Australian Grain Technologies, 12656 Newell Highway Locked Bag 1100 Narrabri NSW 2390
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Jorge Mayer
Ag RD&IP Consult P/L, Nerang QLD 4211
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Wujun Ma
Murdoch University
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Abstract

Reproductive stage frost poses a major constraint for wheat production in countries such as Australia. However, little progress has been made in identifying key genes to overcome the constraint. In the present study, a severe frost event hit two large-scale field trials consisting of six doubled haploid (DH) wheat populations in reproductive stage (young microspore stage) in Western Australia, leading to the identification of 30 robust frost QTL. Results showed that frost damage is associated with dominant alleles of VrnA1a, VrnD1a, Rht-B1b, Rht-D1b, and the copy number of Ppd-B1. No frost QTL was detected on chromosomes 5B and 1B, although anthesis QTL and anthesis related genes of VrnB1a and TaFT3_1B were co-detected, indicating that these early-flowering phenotype inducing genes are compatible with frost tolerance and thus can be utilised in breeding. Our results also indicate that wild-type or recessive alleles Rht-B1a (rht1) and Rht-D1a (rht2) can be used when breeding for frost-tolerant varieties without delaying flowering time.