LuxA gene of light organ symbionts of the bioluminescent fish Acropoma japonicum (Acropomatidae) and Siphamia versicolor (Apogonidae) forms a lineage closely related to that of Photobacterium leiognathi ssp. mandapamensis |
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| Authors: | Wada Minoru Kamiya Akiko Uchiyama Nami Yoshizawa Susumu Kita-Tsukamoto Kumiko Ikejima Kou Yu Reiko Imada Chiaki Karatani Hajime Mizuno Naoki Suzuki Yuzuru Nishida Mutsumi Kogure Kazuhiro |
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| Institution: | Ocean Research Institute, The University of Tokyo, Tokyo, Japan. mwada@ori.u-tokyo.ac.jp |
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| Abstract: | A molecular phylogenetic analysis of luxA gene sequences of light organ symbionts of the fish Acropoma japonicum (Acropomatidae) and Siphamia versicolor (Apogonidae) revealed that the sequences were related to those of Photobacterium leiognathi ssp. mandapamensis, which is not known to occur as a light organ symbiont among bioluminescent P. leiognathi clades. The presence of another lux gene element, luxF, coding for nonfluorescent protein, provided additional support for the identity of the light organ symbionts of the fish. Cladogenesis of the light organ symbiont P. leiognathi may be influenced by the radiation of host fishes. |
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| Keywords: | luciferase genes symbiosis Photobacterium leiognathi |
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