[Clustering analysis of karyotype resemblance-near coefficient for 6 Bupleurum species]
Yun Song1, Yonggang Qiao, Yuxiang Wu
1College of Life Sciences, ShanXi Agricultural University, Taigu 030801, China. songyun0283@126.com
Objective:
To explore the genetic evolutionary distance between plants by using karyotype parameters identification of medicinal plants.
Method:
The cluster analysis of karyotype resemblance-near coefficient and evolutionary distance was used for 6 Bupleurum species.
Result:
The results showed that there were the biggest karyotype resemblance-near coefficient (0.9920) and the smallest evolutionary distance (D(e) = 0.0080) between B. scorzonerifolium and B. chinense, indicating the closest relationship, and the minimum karyotype resemblance-near coefficient (0.4794) and the maximum evolutionary distance (D(e) = 0.7352) between B. smityii and B. falcatum, indicating the most distant relationship.
Conclusion:
Karyotype was an important parameter for identification of medicinal plants because karyotype was stabilized for species. The genetic distance between in 6 species of Bupleurum species was obtained by karyotype clustering analysis of karyotype resemblance-near coefficient. There was the bigger evolutionary distance between the species which had different chromosome number.
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