Cospeciation of chemoautotrophic bacteria and deep sea clams

被引：145

作者：

Peek, AS

Feldman, RA

Lutz, RA

Vrijenhoek, RC

机构：

[1] Rutgers State Univ, Ctr Theoret & Appl Genet, New Brunswick, NJ 08901 USA

[2] Rutgers State Univ, Inst Marine & Coastal Sci, New Brunswick, NJ 08901 USA

来源：

PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA | 1998年 / 95卷 / 17期

关键词：

D O I：

10.1073/pnas.95.17.9962

中图分类号：

O [数理科学和化学]; P [天文学、地球科学]; Q [生物科学]; N [自然科学总论];

学科分类号：

07 ; 0710 ; 09 ;

摘要：

Vesicomyid clams depend entirely on sulfur-oxidizing endosymbiotic bacteria for their nutriment. Endosymbionts that are transmitted cytoplasmically through eggs, such as these, should exhibit a phylogenetic pattern that closely parallels the phylogeny of host mitochondrial genes. Such parallel patterns are rarely observed, however, because they are obscured easily by small amounts of horizontal symbiont transmission or occasional host switching. The present symbiont genealogy, based on bacterial small subunit (16S) rDNA sequences, was closely congruent with the host genealogy, based on clam mitochondrial cytochrome oxidase subunit I and large subunit (16S) rDNA sequences. This phylogenetic evidence supports the hypothesis of cospeciation and a long term association between the participants in this symbiosis.

引用

页码：9962 / 9966

页数：5

共 43 条

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