ACTA AGRICULTURAE BOREALI-SINICA ›› 2020, Vol. 35 ›› Issue (S1): 47-55. doi: 10.7668/hbnxb.20190802

Special Issue: Wheat Drought and water saving

• Crop Genetics and Breeding·Germplasm Resources·Biotechnology • Previous Articles     Next Articles

Selection and Identification of the EMS-Induced Drought-resistant Wheat Mutants from Jimai 418

Lü Liangjie1, CHEN Xiyong1, ZHANG Wenying2, ZHAO Aiju1, SUN Lijing1, ZHANG Yingjun1, LIU Yuping1, WANG Limei1, LI Ziqian1, LI Hui1   

  1. 1. Institute of Cereal and Oil Crops, Hebei Academy of Agriculture and Forestry Sciences, Crop Genetics and Breeding Laboratory of Hebei, Shijiazhuang 050035, China;
    2. Institute of Dryland Farming, Hebei Academy of Agriculture and Forestry Sciences, Hengshui 053000, China
  • Received:2020-06-20 Published:2020-12-28

Abstract: To obtain specific genetic materials for the study of gene function and genetic improvement of wheat,ethyl methyl sulfonate (EMS) chemical mutagenesis was used to treat the drought-resistant,high-yield,and multi-resistant wheat variety Jimai 418. The field agronomic traits and biological characters were observed and investigated in the M2. 416 mutant spike lines were selected from 6 961 spike lines,with a mutation frequency of 5.98%.Among them,11 lines were seedlings habit mutants,with a mutation frequency of 0.16%; 12 lines were tiller mutants,with a mutation frequency of 0.17%; 34 lines were leaf mutants,with a mutation frequency of 0.48%; there were 68 plant height mutants with a mutation frequency of 0.97%,62 spike mutants with a mutation frequency of 0.89%,and 132 sterility mutants with a mutation frequency of 1.90%,15 root mutants (0.26%) and 82 other types of mutants. Through the verification of biological and agronomic characters,84 lines with stable inheritance were obtained in M3,including 43 stem mutants,23 spike mutants,7 leaf mutants,4 early-maturing mutants,2 late-maturing mutants,2 awn mutants,2 root mutants and 1 sterile mutant. The analysis of agronomic characters showed that the mutant library was rich in variation types,and the mutation frequencies of plant height,growth period and 1000-grain weight were relatively high. These new mutants provided new materials for the study of wheat functional genome and wheat genetic improvement.

Key words: Wheat, Jimai 418, Mutant, Selection, Identification, Ethyl methane sulfonate (EMS)

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Cite this article

Lü Liangjie, CHEN Xiyong, ZHANG Wenying, ZHAO Aiju, SUN Lijing, ZHANG Yingjun, LIU Yuping, WANG Limei, LI Ziqian, LI Hui. Selection and Identification of the EMS-Induced Drought-resistant Wheat Mutants from Jimai 418[J]. ACTA AGRICULTURAE BOREALI-SINICA, 2020, 35(S1): 47-55. doi: 10.7668/hbnxb.20190802.

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