| Analysis of agronomic trait and grain quality trait variation in aird\|region foxtail millet after EMS mutagenesis |
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| DOI：10.7606/j.issn.1000-7601.2026.02.04 |
| Key Words: foxtail millet EMS mutagenesis mutant library drought resistance phenotypic variation |
| Author Name | Affiliation | | WANG Cheng | College of Agriculture,Henan University of Science and Technology, Henan Dryland Crop Germplasm Resources Utilization Engineering Research Center, Luoyang, Henan 471000, China | | TONG Shengli | College of Agriculture, Xinyang Agriculture and Forestry University, Xinyang, Henan 464000, China | | GUO Haojie | College of Agriculture,Henan University of Science and Technology, Henan Dryland Crop Germplasm Resources Utilization Engineering Research Center, Luoyang, Henan 471000, China | | YU Jinchen | College of Agriculture,Henan University of Science and Technology, Henan Dryland Crop Germplasm Resources Utilization Engineering Research Center, Luoyang, Henan 471000, China | | WANG Jinyue | College of Agriculture,Henan University of Science and Technology, Henan Dryland Crop Germplasm Resources Utilization Engineering Research Center, Luoyang, Henan 471000, China | | DING Hongfei | College of Agriculture,Henan University of Science and Technology, Henan Dryland Crop Germplasm Resources Utilization Engineering Research Center, Luoyang, Henan 471000, China | | MENG Chaomin | College of Agriculture,Henan University of Science and Technology, Henan Dryland Crop Germplasm Resources Utilization Engineering Research Center, Luoyang, Henan 471000, China |
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| Abstract: |
| To address the bottleneck of drought\|resistant breeding caused by the lack of genetic diversity of foxtail millet in arid and semi\|arid areas of China, four main cultivars, including ‘Yugu 18’， ‘Jinuomi 2’, ‘Jingu 5’, ‘Jigu 11’, were used as materials. These were treated with EMS (ethane methyl sulfonate) solutions at gradients of 0%, 0.2%, 0.4%, 0.6%, 0.8%, and 1.0% (v/v) for seed mutagenesis. The study systematically analyzed the agronomic traits of the M1 generation, grain nutritional quality, seedling emergence rates, and phenotypic variations in individual plants. Through the experiment, a germplasm bank containing 620 mutants was established, confirming a 1% EMS concentration as the optimal mutagenesis level for millet. The number of M1 generation mutants for each variety ranged from 127 to 220, with an average mutation rate of 18.5%. Significant variations were observaed in drought\|related traits: plant height variation rates ranged from 15.52% to 29.74% (with 65% of dwarf stalks), 7.66% to 23.28% of tillering traits, and 3.83% to 18.34% of early\|maturing plants. In terms of quality traits, materials were obtained with notable improvements, such as an 85.40% increase in crude fat content in ‘Yugu 18’ and a 1.39% rise in crude protein in ‘Jingu 5’. |
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