Molecular phylogeny of the genus Dicronocephalus (Coleoptera,Scarabaeidae, Cetoniinae) based on mtCOI and 16S rRNA genes |
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Authors: | Ga-Eun Lee Taeman Han Jongchel Jeong Seong-Hyun Kim In Gyun Park Haechul Park |
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Institution: | 1.Applied Entomology Division, Department of Agricultural Biology, National Academy of Agricultural Science, Jeonju 565-851, Korea ;2.Seodaemun Museum of Natural History, 25 Bangmulgwan-gil, San 5-58, Seodaemun-gu, Seoul, 120-708, Korea |
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Abstract: | The seven species belonging to the genus Dicronocephalus are a very interesting group with a unique appearance and distinct sexual dimorphism. Only one species among them, Dicronocephalus
adamsi, has been known in the Korean fauna. This species is recognized as having a wide distribution from Tibet to Korean Peninsula and is currently represented by two subspecies that have separated geographical ranges. The phylogenetic relationships of Dicronocephalus
adamsi were still unclear. The phylogeny of Dicronocephalus is reconstructed with a phylogenetic study of five species including four subspecies based on a molecular approach using mitochondrial COI and 16S rRNA genes. Our results are compared with the results obtained by previous authors based on morphological characters. They show that the tested taxa are divided into two major clades. Clade A consists of two species (Dicronocephalus
adamsi + Dicranocephalus
yui) and Clade B includes the others (Dicronocephalus
dabryi + Dicranocephalus
uenoi + Dicranocephalus
wallichii). This result generally supports Kurosawa’s proposal except that Dicronocephalus
dabryi and Dicranocephalus
uenoi are newly recognized as members of a monophyletic group. We propose that Dicronocephalus
adamsi
drumonti is a junior subjective synonym of Dicronocephalus
adamsi
adamsi. These results show that three members of the Dicranocephalus
wallichii group should be treated as species rather than subspecies. However, further research including analyses of different genetic markers is needed to reconfirm our results. |
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Keywords: | Dicronocephalus" target="_blank">Dicronocephalus phylogenetic relationships Dicronocephalus
adamsi" target="_blank">Dicronocephalus
adamsi taxonomy Scarabaeidae" target="_blank">Scarabaeidae new synonymy Korea |
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