Acta Agriculturae Zhejiangensis ›› 2024, Vol. 36 ›› Issue (7): 1569-1582.DOI: 10.3969/j.issn.1004-1524.20231064

• Horticultural Science • Previous Articles     Next Articles

Genetic diversity of cowpea landraces in Zhejiang Province, China

WANG Baogen1,2(), CHEN Xiaoyang3, WU Jian1,4, LI Xiao1,4, WANG Ying1,2, WANG Jian1,2, WU Xiaohua1,2, LU Zhongfu1,2, SUN Yuyan1,2, DONG Wenqi1,2, LI Guojing1,2, WU Xinyi1,2,5,*()   

  1. 1. Institute of Vegetable, Zhejiang Academy of Agricultural Sciences, Hangzhou 310021, China
    2. Key Laboratory of Vegetable Legumes Germplasm Enhancement and Molecular Breeding in Southern China(Co-Construction by Ministry and Province), Ministry of Agriculture and Rural Affairs, Zhejiang Academy of Agricultural Sciences, Hangzhou 310021, China
    3. General Station for Seed Administration of Zhejiang Province, Hangzhou 310020, China
    4. College of Horticulture Science, Zhejiang A&F University, Hangzhou 311300, China
    5. State Key Laboratory for Managing Biotic and Chemical Threats to the Quality and Safety of Agro-Products, Zhejiang Academy of Agricultural Sciences, Hangzhou 310021, China
  • Received:2023-09-07 Online:2024-07-25 Published:2024-08-05

Abstract:

Zhejiang is one of the main cowpea producing areas in China. To systematically sort out and identify the cowpea landraces in Zhejiang Province, 220 cowpea accessions collected in Zhejiang Province in multi-years were evaluated on 21 important traits in the field. The results showed that these landraces had large phenotypic variation, and they could be divided into four clusters according to their phenotype data, of which, Cluster Ⅲ displayed the similar phenotypes with the current released cultivars, indicating that these accessions had high values for cowpea breeding. Using the cowpea specific core single nucleotide polymorphisms (SNPs), the genotypes of 220 landraces were also identified and their DNA fingerprinting was constructed. Based on their genotype data, these accessions were also divided into four subpopulations, and subpopulation Ⅲ showed the longest pods. In summary, the genetic diversity of Zhejiang cowpea landraces was evaluated from different perspectives, and the results would provide a scientific basis for cowpea germplasm enhancement and new cultivars development.

Key words: cowpea, germplasm, genetic diversity, genotype

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