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Infrequent marine-freshwater transitions in the microbial world

机译:微生物世界中不常见的海洋-淡水过渡

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Until recently, the evolutionary relationships between marine and freshwater microbes were unclear, but the use of molecular phylogenies is beginning to shed light on this subject. An increasing amount of studies are showing that marine and freshwater microbes (including viruses) are usually not closely related, often grouping into distinct marine and freshwater phylogenetic clusters, similar to what has been reported before for macroorganisms. These studies indicate that marine-freshwater transitions have been infrequent events during the diversification of microbes and that most of these transitions occurred a long time ago in evolutionary terms. Here we discuss the significance of recent studies addressing this question and consider possible avenues for future research.
机译:直到最近,海洋微生物和淡水微生物之间的进化关系还不清楚,但是分子系统学的使用开始为这个问题阐明。越来越多的研究表明,海洋和淡水微生物(包括病毒)通常不密切相关,通常分为不同的海洋和淡水系统发育簇,这与以前关于大型生物的报道相似。这些研究表明,在微生物多样化期间,海洋-淡水转变一直是罕见的事件,而且这些转变中的大多数是很久以前就进化而言发生的。在这里,我们讨论了解决这个问题的最新研究的意义,并考虑了未来研究的可能途径。

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