Méheust Raphaël, Lopez Philippe, Bapteste Eric
UMR7138 Evolution Paris-Seine, Institut de Biologie Paris-Seine, Université Pierre et Marie Curie, 9 quai saint Bernard, 75005 Paris, France.
UMR7138 Evolution Paris-Seine, Institut de Biologie Paris-Seine, Université Pierre et Marie Curie, 9 quai saint Bernard, 75005 Paris, France.
Trends Ecol Evol. 2015 Mar;30(3):127-9. doi: 10.1016/j.tree.2015.01.001. Epub 2015 Jan 16.
Understanding how major organismal lineages originated is fundamental for understanding processes by which life evolved. Major evolutionary transitions, like eukaryogenesis, merging genetic material from distantly related organisms, are rare events, hence difficult ones to explain causally. If most archaeal lineages emerged after massive acquisitions of bacterial genes, a rule however arises: metabolic bacterial genes contributed to all major evolutionary transitions.
了解主要生物谱系如何起源对于理解生命进化的过程至关重要。重大的进化转变，如真核生物起源，即融合来自远缘生物的遗传物质，是罕见事件，因此很难从因果关系上进行解释。如果大多数古菌谱系是在大量获取细菌基因之后出现的，那么就会出现一条规律：代谢细菌基因促成了所有重大的进化转变。
