Evolutionary relationships of three new species of Enterobacteriaceae living as symbionts of aphids and other insects
Evolutionary relationships of three new species of Enterobacteriaceae living as symbionts of aphids and other insects
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DOI：
10.1128/aem.71.6.3302-3310.2005
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发表时间：
2005-06-01
影响因子：
4.4
通讯作者：
Fukatsu, T
中科院分区：
文献类型：
--
作者：
Moran, NA;Russell, JA;Fukatsu, T
对蚜虫共生的三个细菌谱系的生态学研究表明，它们对寄主产生多种影响，包括对寄生蜂的抗性和对热胁迫的耐受性。gyrB和recA的部分序列的系统发育分析是一致的，与以前的分析限于16S rRNA基因序列和产量提高这些共生体的进化关系的信心。这三种共生菌都属于肠杆菌科。其中一种共生体，在这里被临时命名为“Serratia symbiotica”，是一种获得了共生生活方式的沙雷氏菌属物种。另外两个共生体，在这里被命名为“Hamiltonella defensa”和“昆虫共生体”，彼此是姐妹群，共同显示出与Photorhabdus物种的关系。
Ecological studies on three bacterial lineages symbiotic in aphids have shown that they impose a variety of effects on their hosts, including resistance to parasitoids and tolerance to heat stress. Phylogenetic analyses of partial sequences of gyrB and recA are consistent with previous analyses limited to 16S rRNA gene sequences and yield improved confidence of the evolutionary relationships of these symbionts. All three symbionts are in the Enterobacteriaceae. One of the symbionts, here given the provisional designation "Candidatus Serratia symbiotica," is a Serratia species that has acquired a symbiotic lifestyle. The other two symbionts, here designated "Candidatus Hamiltonella defensa" and "Candidatus Regiella insecticola," are sister groups to one another and together show a relationship to species of Photorhabdus.