Horizontal gene transfer between bacteria and animals.
Horizontal gene transfer between bacteria and animals.
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DOI：
10.1016/j.tig.2011.01.005
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发表时间：
2011-04
影响因子：
11.4
通讯作者：
Hotopp, Julie C. Dunning
中科院分区：
文献类型：
--
作者：
Hotopp, Julie C. Dunning
水平基因转移越来越多地描述在细菌和动物之间。这种垂直遗传的转移有可能影响动物的进化。一个经典的例子是真核生物获得这些细胞器后，DNA从线粒体和叶绿体转移到细胞核。即使在今天，许多描述的细菌转移到动物的例子发生在亲密关系的一部分，如内共生体和它们的无脊椎动物宿主，特别是昆虫和线虫，而许多转移也发现在无性动物。这两个观察结果都与现代进化理论相一致，特别是串行内共生理论和穆勒的棘轮。虽然人们很容易认为这些特定的生活方式可能会促进横向基因转移，但由于动物基因组测序项目的非随机抽样以及缺乏对此类转移的动物基因组的系统分析，因此很难确定。
Horizontal gene transfer is increasingly described between bacteria and animals. Such transfers that are vertically inherited have the potential to influence the evolution of animals. One classic example is the transfer of DNA from mitochondria and chloroplasts to the nucleus after the acquisition of these organelles by eukaryotes. Even today, many of the described instances of bacteria to animal transfer occur as part of intimate relationships like those of endosymbionts and their invertebrate hosts, particularly insects and nematodes, while numerous transfers are also found in asexual animals. Both of these observations are consistent with modern evolutionary theory, in particular the serial endosymbiotic theory and Muller’s ratchet. While it is tempting to suggest that these particular lifestyles might promote horizontal gene transfer, it is difficult to ascertain given the non-random sampling of animal genome sequencing projects and the lack of a systematic analysis of animal genomes for such transfers.
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