EVIDENCE FOR THE ESTABLISHMENT OF APHID-EUBACTERIUM ENDOSYMBIOSIS IN AN ANCESTOR OF 4 APHID FAMILIES
EVIDENCE FOR THE ESTABLISHMENT OF APHID-EUBACTERIUM ENDOSYMBIOSIS IN AN ANCESTOR OF 4 APHID FAMILIES
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DOI：
10.1128/jb.173.20.6321-6324.1991
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发表时间：
1991-10-01
影响因子：
3.2
通讯作者：
CAMPBELL, BC
中科院分区：
文献类型：
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作者：
MUNSON, MA;BAUMANN, P;CAMPBELL, BC
蚜虫（蚜虫总科）含有位于特化细胞（菌细胞）内的真细菌内共生体。内共生菌是蚜虫寄主生存所必需的。对4科7族11种蚜虫内共生体的16SrRNA序列分析表明，蚜虫内共生体是单系的。此外，共生体分支内的系统发育关系与相应的蚜虫宿主的关系平行。我们的研究结果表明，这种内吞共生体协会成立于一个共同的祖先的四个蚜虫家庭，随后的多样化到本物种的蚜虫及其内共生体。
Aphids (superfamily Aphidoidea) contain eubacterial endosymbionts localized within specialized cells (mycetocytes). The endosymbionts are essential for the survival of the aphid hosts. Sequence analyses of the 16S rRNAs from endosymbionts of 11 aphid species from seven tribes and four families have indicated that the endosymbionts are monophyletic. Furthermore, phylogenetic relationships within the symbiont clade parallel the relationships of the corresponding aphid hosts. Our findings suggest that this endocytobiotic association was established in a common ancestor of the four aphid families with subsequent diversification into the present species of aphids and their endosymbionts.