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Genetic Diversity and Population Structure Analysis of 104 Tartary Buckwheat Germplasm Resources Based on SSR Markers
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Yening Wu1, Haochi Hu1, Chunyong Wang2, Rui Xie1, Yonghu Zhang1, Rui Wen1, Xiaolei Jin1
Crops | 2026, 42(1) : 26 - 32
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Crops | 2026, 42(1): 26-32
Genetic Diversity and Population Structure Analysis of 104 Tartary Buckwheat Germplasm Resources Based on SSR Markers
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Yening Wu1, Haochi Hu1, Chunyong Wang2, Rui Xie1, Yonghu Zhang1, Rui Wen1, Xiaolei Jin1
Affiliations
  • 1Inner Mongolia Academy of Agricultural and Animal Husbandry Sciences, Hohhot 010031, Inner Mongolia, China
  • 2Tangshan Academy of Agricultural Sciences, Tangshan 063001, Hebei, China
Published: 2026-02-15 doi: 10.16035/j.issn.1001-7283.2026.01.005
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Using SSR molecular markers, genetic diversity and population structure analysis were conducted on 104 local tartary buckwheat germplasm resources in China. The results showed that nine pairs of highly polymorphic SSR primers amplified a total of 22 alleles in the 104 tartary buckwheat germplasm resources. The number of alleles amplified per primer pair ranged from two to four, with an average of 2.444 alleles per locus. The average values for effective allele number (Ne), Shannon’s diversity index (I), observed heterozygosity (Ho), and expected heterozygosity (He) were 1.820, 0.629, 0.058, and 0.401, respectively. The polymorphic information content (PIC) ranged from 0.0096 to 0.6115, with an average of 0.3312. UPGMA clustering analysis divided the 104 tartary buckwheat germplasm resources into four groups. The tartary buckwheat from Inner Mongolia, Yunnan, Guizhou, and Sichuan showed similar distributions, primarily clustered in group III and IV. Materials from other provinces were more evenly distributed, demonstrating rich genetic diversity. Population structure analysis and two-dimensional principal coordinate analysis (PCoA) further confirmed that the grouping results were largely consistent with the cluster analysis. This study further clarified the genetic diversity and phylogenetic relationships among local germplasms of tartary buckwheat, and screened 17 genetically pure germplasm materials. This provides a theoretical basis for the effective utilization of tartary buckwheat germplasm resources and the breeding of new varieties.

Tartary buckwheat  /  SSR molecular markers  /  Germplasm resources  /  Genetic diversity  /  Population structure
Yening Wu, Haochi Hu, Chunyong Wang, Rui Xie, Yonghu Zhang, Rui Wen, Xiaolei Jin. Genetic Diversity and Population Structure Analysis of 104 Tartary Buckwheat Germplasm Resources Based on SSR Markers[J]. Crops, 2026 , 42 (1) : 26 -32 . DOI: 10.16035/j.issn.1001-7283.2026.01.005
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Article Info
doi: 10.16035/j.issn.1001-7283.2026.01.005
  • Receive Date：2024-08-02
  • Online Date：2026-04-30
  • Published：2026-02-15
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  • Received：2024-08-02
  • Revised：2024-09-26
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    1Inner Mongolia Academy of Agricultural and Animal Husbandry Sciences, Hohhot 010031, Inner Mongolia, China
    2Tangshan Academy of Agricultural Sciences, Tangshan 063001, Hebei, 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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