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Coexistence of sexual individuals and genetically isolated asexual counterparts in a thrips

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Title: Coexistence of sexual individuals and genetically isolated asexual counterparts in a thrips
Authors: Kobayashi, Kazuya Browse this author
Yoshimura, Jin Browse this author
Hasegawa, Eisuke Browse this author
Issue Date: 21-Nov-2013
Publisher: Nature publishing group
Journal Title: Scientific reports
Volume: 3
Publisher DOI: 10.1038/srep03286
Abstract: Sex is a paradoxical phenomenon because it is less efficient compared with asexual reproduction. To resolve this paradox we need a direct comparison between sexual and asexual forms. In many organisms, however, sexual and asexual forms do not occur in the same habitat, or at the same time. In a few cases where sexual and asexual forms are found in a single population, some (though rare) genetic exchange is usually detected between the two forms. When genetic exchange occurs a direct comparison is impossible. Here we investigate a thrips exhibiting both sexual and asexual forms (lineages) that are morphologically indistinguishable. We examine if the two forms are genetically isolated. Phylogeny based on nuclear genes confirms that the sexual and asexual lineages are genetically differentiated. Thus we demonstrate that the current system has certain advantages over existing and previously used model systems in the evolution of sexual reproduction.
Type: article
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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