Clustering analysis of karyotype resemblance-near coefficient for 6 Bupleurum species / 中国中药杂志

ABSTRACT

<p><b>OBJECTIVE</b>To explore the genetic evolutionary distance between plants by using karyotype parameters identification of medicinal plants.</p><p><b>METHOD</b>The cluster analysis of karyotype resemblance-near coefficient and evolutionary distance was used for 6 Bupleurum species.</p><p><b>RESULT</b>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.</p><p><b>CONCLUSION</b>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.</p>