Bacterial endosymbiont of the slender pigeon louse, Columbicola columbae, allied to endosymbionts of grain weevils and tsetse flies

Fukatsu, Takema; Koga, Ryuichi; Smith, Wendy A.; Tanaka, Kohjiiro; Nikoh, Naruo; Sasaki-Fukatsu, Kayoko; Yoshizawa, Kazunori; Dale, Colin; Clayton, Dale H.

Bacterial endosymbiont of the slender pigeon louse, Columbicola columbae, allied to endosymbionts of grain weevils and tsetse flies

Fukatsu, Takema; Koga, Ryuichi; Smith, Wendy A. et al.

Applied and Environmental Microbiology, 2007, 73(20), 6660-6668

Permalink : https://hdl.handle.net/2115/35630

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アクセス権	open access
URI	https://hdl.handle.net/2115/35630
タイトル	Bacterial endosymbiont of the slender pigeon louse, Columbicola columbae, allied to endosymbionts of grain weevils and tsetse flies
著者	Fukatsu, Takema ; Koga, Ryuichi ; Smith, Wendy A. ; Tanaka, Kohjiiro ; Nikoh, Naruo ; Sasaki-Fukatsu, Kayoko ; Yoshizawa, Kazunori ; Dale, Colin ; Clayton, Dale H.
著者名 Fukatsu, Takema
著者名 Koga, Ryuichi
著者名 Smith, Wendy A.
著者名 Tanaka, Kohjiiro
著者名 Nikoh, Naruo
著者名 Sasaki-Fukatsu, Kayoko
e-Rad_Researcher 10322843 著者名 Yoshizawa, Kazunori
著者名 Dale, Colin
著者名 Clayton, Dale H.
言語	英語
発行日	2007-10
出版者	American Society for Microbiology
収録物名	Applied and Environmental Microbiology
巻(号)	73(20)
ページ	6660-6668
抄録	The current study focuses on a symbiotic bacterium found in the slender pigeon louse, Columbicola columbae (Insecta: Phthiraptera). Molecular phylogenetic analyses indicated that the symbiont belongs to the gamma subdivision of the class Proteobacteria and is allied to Sodalis glossinidius, the secondary symbiont of tsetse flies (Glossina spp.) and also to the primary symbiont of grain weevils (Sitophilus spp.). Relative-rate tests revealed that the symbiont of C. columbae exhibits accelerated molecular evolution in comparison with the tsetse fly symbiont and the weevil symbiont. Whole-mount in situ hybridization was used to localize the symbiont and determine infection dynamics during host development. In first- and second-instar nymphs, the symbionts were localized in the cytoplasm of oval bacteriocytes that formed small aggregates on both sides of the body cavity. In third-instar nymphs, the bacteriocytes migrated to the central body and were finally located in the anterior region of the lateral oviducts, forming conspicuous tissue formations called ovarial ampullae. In adult females, the symbionts were transmitted from the ovarial ampullae to developing oocytes in the ovarioles. In adult males, the bacteriocytes often disappeared without migration. A diagnostic PCR survey of insects collected from Japan, the United States, Australia, and Argentina detected 96.5% (109/113) infection, with a few uninfected male insects. This study provides the first microbial characterization of a bacteriocyte-associated symbiont from a chewing louse. Possible biological roles of the symbiont are discussed in relation to the host nutritional physiology associated with the feather-feeding lifestyle.
資源タイプ	学術雑誌論文
出版タイプ	Version of Record
権利情報	Copyright © 2007 American Society for Microbiology
PISSN	0099-2240
関連情報	PMID 17766458
関連情報 (isIdenticalTo)	出版社版DOI https://doi.org/10.1128/AEM.01131-07