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Phylogenetic Comparison of Endosymbionts with Their Host Ants Based on Molecular Evidence

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Title: Phylogenetic Comparison of Endosymbionts with Their Host Ants Based on Molecular Evidence
Authors: Sameshima, Shinya Browse this author
Hasegawa, Eisuke Browse this author →KAKEN DB
Kitade, Osamu Browse this author
Minaka, Nobuhiro Browse this author
Matsumoto, Tadao Browse this author
Issue Date: Jun-1999
Publisher: Zoological Society of Japan
Journal Title: Zoological Science
Volume: 16
Issue: 6
Start Page: 993
End Page: 1000
Publisher DOI: 10.2108/zsj.16.993
Abstract: Some Formicid ants have symbiotic intracellular bacteria in the epithelial cells of their midgut. These endosymbionts are believed to be derived from a common ancestor. A recent study revealed that endosymbionts of the ant genus Camponotus are closely related to Enterobacteriaceae, but their relationship to endosymbionts of other genera of ants is unknown. In this study, the nucleotide sequences of 16S ribosomal RNA (rRNA) of endosymbionts and mitochondrial cytochrome oxidase subunit I (COI) of their host were determined in five genera of the subfamily Formicinae (Hymenoptera: Formicidae). Based on these molecular data, we constructed phylogenetic trees in order to characterize the systematic position of the symbionts and to estimate the relationship of symbionts and hosts. The analysis showed that the endosymbionts were all connected with the Enterobacteriaceae but did not constitute a monophylitic group, while the three genera belonging to the tribe Camponotini, the endosymbionts and their hosts made a clade. The topologies of these trees were identical for the most part. These results suggest that the endosymbionts of ants have plural origins, and that in the Camponotini, ancestral symbionts have coevolved with their host ants, which are so divergent to several genera as to construct one tribe.
Type: article
URI: http://hdl.handle.net/2115/66620
Appears in Collections:農学院・農学研究院 (Graduate School of Agriculture / Faculty of Agriculture) > 雑誌発表論文等 (Peer-reviewed Journal Articles, etc)

Submitter: 長谷川 英祐

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