Snyder Lori A S, Loman Nicholas J, Fütterer Klaus, Pallen Mark J
University of Birmingham, Birmingham, B15 2TT, UK.
Trends Microbiol. 2009 Jan;17(1):1-5. doi: 10.1016/j.tim.2008.10.002. Epub 2008 Dec 10.
Flagella are the chief organelles of motility in bacteria. In recent years, several new findings have illuminated the evolution of bacterial flagella, including cut-down versions of the organelle in Buchnera, a dispensable ATPase and structural evidence for homology between FliG (a component of the flagellar motor) and MgtE (a magnesium transporter). However, a fresh examination of the phylogenetic distribution of flagellar genes warns against a simplistic model of early flagellar evolution.
鞭毛是细菌运动的主要细胞器。近年来，一些新发现揭示了细菌鞭毛的进化，包括布赫纳氏菌中该细胞器的简化版本、一种可有可无的ATP酶以及鞭毛马达组件FliG与镁转运蛋白MgtE之间同源性的结构证据。然而，对鞭毛基因系统发育分布的重新审视提醒我们要警惕早期鞭毛进化的简单化模型。
