Phylogeny of the Graphium butterflies inferred from nuclear 28S rDNA and mitochondrial ND5 gene sequences

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Other Title
  • 核28S rDNAとミトコンドリアND5遺伝子に基づくGraphium属の系統解析

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Description

We examined the phylogenetic relationships of 40 species of the genus Graphium (Papilionidae: Leptocircini) with a few related genera belonging to the tribe Leptocircini. The analysis is based on comparisons of morphological classification and about 700 base pairs of nuclear 28S ribosomal DNA and 793 base pairs of the mitochondrial NADH dehydrogenase subunit 5 (ND5) gene. In both 28S rDNA, the ND5 and the 28S rDNA+ND5 phylogenetic trees of Graphium butterflies, the genus Graphium was monophyletic, and diversification occurred at almost the same time. Although the subgenera Pazala, Pathysa and Arisbe were monophyletic clusters, the subgenus Graphium was not. The 28S rDNA sequence lengths of the eurypylus group belonging to this subgenus (represented in this study by G. doson, G. bathycles, G. chiron, G. evemon, G. leechi, G. eurypylus) and G. akikoae (=phidias) to the subgenus Pathysa are 713 bases, and differed from those of the other Graphium butterflies which are 717 bases. The phylogenetic tree positions of the eurypylus group+G. akikoae did not cluster with other subgenera, but rather independently. Therefore, we assumed that the eurypylus group did not belong in the subgenus Graphium. The current classification leaves a certain ambiguity in the classification of the African Graphium species, either all the African Graphium species being classified into the subgenus Arisbe (Miller, 1987), or the African species being classified into two groups, the non-swordtailed species in the subgenus Arisbe and the swordtailed species in the subgenus Graphium (Hancock, 1983, 1993). The present study assumes that the African species should be assigned to two groups represented by Hancock, one being the non-swordtailed species in the subgenus Arisbe (represented in this study by G. ridleyanus, G. latreillianus, G. angolanum, G. tynderaeus, G. leonidas, G. adamastor and G. schubotzi) and the other being the swordtailed species in the subgenus Graphium (represented in this study by G. policenes).

Journal

  • Lepidoptera Science

    Lepidoptera Science 54 (2), 91-110, 2003

    THE LEPIDOPTEROLOGICAL SOCIETY OF JAPAN

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