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Your Position :Home->Past Journals Catalog->2008年45 No.4

Phylogenetic analysis of eight species of Pimeliinae based on COⅡ and Cytbgene sequences
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Key Words:Pimeliinae, Cytb gene, COⅡ gene, phylogeny
Abstract:The phylogenetic relationships among 8 species of Pimeliinae based on a 579 bp Cytb and a 585 bp COⅡ gene sequences were analyzed. The results showed that the average contents of T, C, A and G in the 1 164 bp sequences were 33.7%, 21.2%, 33.5 and 11.6%, respectively. The content of A+T is significantly higher than that of C+G, with 77.2% of A+T at the third codon position but only 4.0% of G at the same position. Transition/transversion mostly occur between CT or AT at the third position. With Eumylada potanini as outgroup, phylogenetic trees were reconstructed based on these DNA sequences. The trees showed that Platyopini and Pimeliini were placed in a clade, which is consistent with the current opinion that Platyopini was merged into Pimeliini. Meanwhile, Tentyriini formed another monophyletic clade in the tree.
 
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