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QTL Mapping for Kernel-Related Traits from Synthetic Hexaploid Wheat Lines
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Yingkai SUN1, Xiang LI1, Tianxiang LIU1, Bingyue ZHANG1, Yiqing ZHAO1, Lulu GUAN1, Yatao JIA1, Chao MA1, Zhong SHEN1, Like ZHAO1, Yingang HU1, Wanquan JI1, Xuefen SHI2, Haibo BAI3, Zhonghua WANG1
Journal of Triticeae Crops | 2025, 45(1) : 1 - 15
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Journal of Triticeae Crops | 2025, 45(1): 1-15
• Genetics & Breeding •
QTL Mapping for Kernel-Related Traits from Synthetic Hexaploid Wheat Lines
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Yingkai SUN1, Xiang LI1, Tianxiang LIU1, Bingyue ZHANG1, Yiqing ZHAO1, Lulu GUAN1, Yatao JIA1, Chao MA1, Zhong SHEN1, Like ZHAO1, Yingang HU1, Wanquan JI1, Xuefen SHI2, Haibo BAI3, Zhonghua WANG1
Affiliations
  • 1.State Key Laboratory for Crop Stress Resistance and High-Efficiency Production, College of Agronomy, Northwest A&F University, Yangling, Shannxi 712100, China
  • 2.Ordos Academy of Agricultural and Animal Husbandry Sciences, Ordos, Inner Mongolia 017000, China
  • 3.Agricultural Bio-Technology Research Center, Ningxia Academy of Agriculture and Forestry Science, Yinchuan, Ningxia 750002, China
Published: 2025-01-15 doi: 10.7606/j.issn.1009-1041.2025.01.01
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As a crucial genetic resource, synthetic hexaploid wheat plays a key role in studying of kernel-related traits. In order to further explore the quantitative trait loci (QTL) of kernel-related traits in wheat, a RIL population consisting of 154 lines derived from a cross between XN389 and a synthetic hexaploid wheat (KU2098) was used as materials. Wheat 55K SNP array was used to construct the genetic map and QTLs for nine kernel-related traits were identified, including kernel length (KL), kernel width (KW), kernel area (KA), kernel perimeter (KP), kernel length width ratio (KLWR), thousand-kernel weight (TKW), kernel protein content (KPC), SC (starch content) and wet gluten content (WGC). A total of 84 additive QTLs were identified across 21 wheat chromosomes, except for chromosome 7B. The individual QTL explained the phenotypic variation from 0.91% to 43.41%, with LOD values ranging from 2.54 to 39.96. Among them, 31 major and 10 stable QTLs were identified. A total of twelve QTL clusters, encompassing QTLs associated with kernel-related traits, were identified on chromosomes 1A(1), 1B(1), 1D(1), 2D(1), 4D(1), 5A(1), 5D(1), 6A(2), 6B(2) and 7D(1). In the corresponding physical interval of QTL cluster C8, two candidate genes related to kernel traits were identified. Four candidate genes related to quality traits were identified in physical region of QTL cluster C3. The QTLs can provide reference for yield and quality improvement of wheat.

Synthetic hexaploid wheat  /  Wheat 55K SNP  /  Kernel traits  /  QTLs
Yingkai SUN, Xiang LI, Tianxiang LIU, Bingyue ZHANG, Yiqing ZHAO, Lulu GUAN, Yatao JIA, Chao MA, Zhong SHEN, Like ZHAO, Yingang HU, Wanquan JI, Xuefen SHI, Haibo BAI, Zhonghua WANG. QTL Mapping for Kernel-Related Traits from Synthetic Hexaploid Wheat Lines[J]. Journal of Triticeae Crops, 2025 , 45 (1) : 1 -15 . DOI: 10.7606/j.issn.1009-1041.2025.01.01
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Article Info
doi: 10.7606/j.issn.1009-1041.2025.01.01
  • Receive Date：2024-01-13
  • Online Date：2026-09-11
  • Published：2025-01-15
Article Data
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History
  • Received：2024-01-13
  • Revised：2024-04-01
Funding
Affiliations
    1.State Key Laboratory for Crop Stress Resistance and High-Efficiency Production, College of Agronomy, Northwest A&F University, Yangling, Shannxi 712100, China
    2.Ordos Academy of Agricultural and Animal Husbandry Sciences, Ordos, Inner Mongolia 017000, China
    3.Agricultural Bio-Technology Research Center, Ningxia Academy of Agriculture and Forestry Science, Yinchuan, Ningxia 750002, 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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