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Evaluation of genetic diversity of Brassica napus germplasm from China and Europe assessed by RAPD markers

Author

Listed:
  • S.W. HU

    (Shaanxi Academy of Agricultural Sciences, Yangling, Shaanxi, China)

  • J. Ovesná

    (Shaanxi Academy of Agricultural Sciences, Yangling, Shaanxi, China)

  • L. Kučera

    (Shaanxi Academy of Agricultural Sciences, Yangling, Shaanxi, China)

  • V. Kučera

    (Shaanxi Academy of Agricultural Sciences, Yangling, Shaanxi, China)

  • M. Vyvadilová

    (Shaanxi Academy of Agricultural Sciences, Yangling, Shaanxi, China)

Abstract

The genetic diversity and the relationships among rapeseed germplasm, including a collection of 20 Chinese, 25 Czech, 2 German, 2 French, and 1 English cultivars and breeding materials were evaluated using random amplified polymorphic DNA (RAPD) markers. A total of 79 different polymorphic amplification products were obtained using10 selected decamer primers. RAPDs revealed a significant level of polymorphism among the accessions. The diversity index (DI) ranged from 1.390 to 3.491, showing a sufficient potential of selected primers to differentiate among studied genotypes. Three different metrics were used to assess genetic diversity. The best fit between a priori knowledge about germplasm origin and a posteriori grouping was found using Hamman metrics. Cluster analysis based on Hamman pairwise distance comparison divided the studied accessions into three main clusters. The first group included only accessions fromChina, the second group only that fromEurope with the exception of Zhongshuang No. 2, a Chinese winter rape possessing European cultivars in the pedigree. The third group included accessions both fromChina andEurope. The results indicate the occurrence of a considerable genetic variation between Chinese and European accessions.

Suggested Citation

  • S.W. HU & J. Ovesná & L. Kučera & V. Kučera & M. Vyvadilová, 2003. "Evaluation of genetic diversity of Brassica napus germplasm from China and Europe assessed by RAPD markers," Plant, Soil and Environment, Czech Academy of Agricultural Sciences, vol. 49(3), pages 106-113.
    • Handle: RePEc:caa:jnlpse:v:49:y:2003:i:3:id:4098-pse
    DOI: 10.17221/4098-PSE
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    Cited by:

    1. Chengyu YU & Leona Leišová & Vratislav Kučera & Miroslava Vyvadilová & Jaroslava Ovesná & Ladislav Dotlačil & Shengwu HU, 2007. "Assessment of genetic diversity of yellow-seeded rapeseed (Brassica napus L.) accessions by AFLP markers," Czech Journal of Genetics and Plant Breeding, Czech Academy of Agricultural Sciences, vol. 43(3), pages 105-112.

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