Prevalence of laterally transferred Wolbachia genes in Japanese pine sawyer, Monochamus alternatus (Coleoptera: Cerambycidae)
Prevalence of laterally transferred Wolbachia genes in Japanese pine sawyer, Monochamus alternatus (Coleoptera: Cerambycidae)
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DOI：
10.1007/s13355-014-0256-0
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发表时间：
2014-05-01
影响因子：
1.3
通讯作者：
Togashi, Katsumi
中科院分区：
文献类型：
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作者：
Aikawa, Takuya;Nikoh, Naruo;Togashi, Katsumi
横向基因转移是指生物体将遗传距离远且生殖隔离的生物体的遗传物质整合到生物体中的任何过程。先前的一项调查表明，日本的两个松墨天牛种群携带了许多沃尔巴克氏体基因，这些基因是通过横向基因转移在它们自己的基因组中获得的，但没有感染沃尔巴克氏体。为了了解这种甲虫中沃尔巴克氏体感染和横向转移的沃尔巴克氏体基因的流行情况，我们对自然种群进行了更广泛的调查，包括两个亚种的M。日本松墨天牛（M.松墨天牛（M.松墨天牛（alternatus alternatus）。我们在所有日本和台湾的M.松墨天牛，但没有沃尔巴克氏体感染的任何人口。此外，我们证实了在两个日本种群的Monochamus saltuarius Gebler中没有Wolbachia感染和转移的Wolbachia基因，Monochamus saltuarius Gebler是M.松墨天牛我们的研究结果表明，作为基因供体的Wolbachia内共生体已经从M.将其部分基因组转移到M.松墨天牛发生在M.松墨天牛在亚种化事件之前
Lateral gene transfer is any process in which an organism incorporates genetic material from a phylogenetically distant and reproductively isolated organism. A previous survey demonstrated that two Japanese populations of Monochamus alternatus Hope carried many Wolbachia genes that had been acquired by lateral gene transfer in their own genomes, but were not infected with Wolbachia. To understand the prevalence of Wolbachia infection and laterally transferred Wolbachia genes in this beetle, we performed a broader survey of natural populations covering two subspecies of M. alternatus from Japan (M. alternatus endai) and Taiwan (M. alternatus alternatus). We detected laterally transferred Wolbachia genes in all Japanese and Taiwanese populations of M. alternatus, but no Wolbachia infection in any population. In addition, we confirmed the absence of Wolbachia infection and of transferred Wolbachia genes in two Japanese populations of Monochamus saltuarius Gebler, which is a congeneric relative of M. alternatus. Our findings suggest that the Wolbachia endosymbiont as gene donor has disappeared from M. alternatus, and that the transfer of part of its genome to M. alternatus occurred in the ancestor of M. alternatus before the subspeciation event.