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Fine Mapping of the Dwarf Gene in a Novel Wheat Germplasm 11003
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Hao1 SUN1, 2, 3, Bin ZHAO1, 3, Yanchun PENG2, 4, Rui WANG1, 3, Changhao JI1, 3, Bin ZHU1, 3, Xiaodong CHEN1, 3
Journal of Triticeae Crops | 2025, 45(12) : 1613 - 1619
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Journal of Triticeae Crops | 2025, 45(12): 1613-1619
• Genetics & Breedin •
Fine Mapping of the Dwarf Gene in a Novel Wheat Germplasm 11003
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Hao1 SUN1, 2, 3, Bin ZHAO1, 3, Yanchun PENG2, 4, Rui WANG1, 3, Changhao JI1, 3, Bin ZHU1, 3, Xiaodong CHEN1, 3
Affiliations
  • 1.Crop Research Institute, Anhui Academy of Agricultural Sciences, Hefei, Anhui 230031, China
  • 2.Hubei Key Laboratory of Food Crop Germplasm and Genetic Improvement, Wuhan, Hubei 430064, China
  • 3.Anhui Provincial Key Laboratory of Crop Quality Improvement, Hefei, Anhui 230031, China
  • 4.Institute of Food Crops, Hubei Academy of Agricultural Sciences, Wuhan, Hubei 430064, China
Published: 2025-12-15 doi: 10.7606/j.issn.1009-1041.2025.12.04
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Multiple reduced height (Rht) genes in wheat had been identified but only a few were applied in breeding programs. Therefore, identifying and utilizing new Rht genes remains a prerequisite for breeding high-yield and stable wheat varieties. In this study, we constructed an F2 mapping population by crossing an elite dwarf wheat germplasm 11003 with Yangmai 20, a leading variety in the middle and lower reaches of the Yangtze River. Genetic analysis indicated that the lower plant height of 11003 was controlled by a pair of recessive major alleles. The Rht gene, designated as QPh.aaas-4D, was mapped to a physical interval of 16.64-25.97 Mb on chromosome 4D by using bulked-segregant analysis sequencing (BSA-Seq). Subsequently, high-density KASP makers were developed and mapped the QPh.aaas-4D to a 2.67 Mb candidate interval (18.95-21.62 Mb). Then we used the functional marker KP-Rht2 to test individuals of the F2 population and assumed the candidate gene underlying QPh.aaas-4D was the classical Rht gene, Rht2. Based on this study, reduced height of the novel wheat germplasm 11003 is likely related to the Rht2 gene located on chromosome 4D, which can be used in wheat breeding.

Wheat  /  Plant height  /  Reduced-height (Rht) gene  /  QTL mapping
孙皓, 赵斌, 彭严春, 王瑞, 季昌好, 朱斌, 陈晓东. 小麦新种质11003矮秆基因的精细定位. 麦类作物学报, 2025 , 45 (12) : 1613 -1619 . DOI: 10.7606/j.issn.1009-1041.2025.12.04
Hao1 SUN, Bin ZHAO, Yanchun PENG, Rui WANG, Changhao JI, Bin ZHU, Xiaodong CHEN. Fine Mapping of the Dwarf Gene in a Novel Wheat Germplasm 11003[J]. Journal of Triticeae Crops, 2025 , 45 (12) : 1613 -1619 . DOI: 10.7606/j.issn.1009-1041.2025.12.04
Appendix
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Year 2025 volume 45 Issue 12
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Article Info
doi: 10.7606/j.issn.1009-1041.2025.12.04
  • Receive Date：2025-06-19
  • Online Date：2026-09-18
  • Published：2025-12-15
Article Data
Affiliations
History
  • Received：2025-06-19
  • Revised：2025-09-24
Funding
Affiliations
    1.Crop Research Institute, Anhui Academy of Agricultural Sciences, Hefei, Anhui 230031, China
    2.Hubei Key Laboratory of Food Crop Germplasm and Genetic Improvement, Wuhan, Hubei 430064, China
    3.Anhui Provincial Key Laboratory of Crop Quality Improvement, Hefei, Anhui 230031, China
    4.Institute of Food Crops, Hubei Academy of Agricultural Sciences, Wuhan, Hubei 430064, China
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表12种不同金属材料的力学参数
科
Family		 属数
Number of
genus		 种数
Number of
species		 占总种数比例
Percentage of
total species (%)		 属
Genus		 种数
Number of
species		 占总种数比例
Percentage of total
species (%)
鹅膏菌科Amanitaceae 2 11 5.26 鹅膏菌属 Amanita 10 4.78
小菇科 Mycenaceae 2 12 5.74 丝盖伞属 Inocybe 5 2.39
多孔菌科 Polyporaceae 8 14 6.70 蜡蘑属 Laccaria 5 2.39
红菇科 Russulaceae 3 23 11.00 小皮伞属 Marasmius 6 2.87
小菇属 Mycena 11 5.26
光柄菇属 Pluteus 5 2.39
红菇属 Russula 17 8.13
栓菌属 Trametes 5 2.39
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