Molecular evolution and diversification of the vestimentiferan tube worms
Molecular evolution and diversification of the vestimentiferan tube worms
复制标题
Westimentiferan管虫的分子进化和多样化
DOI：
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发表时间：
1993
影响因子：
1.2
通讯作者：
P. Holland
中科院分区：
文献类型：
--
作者：
N. Williams;David R. Dixon;E. Southward;P. Holland
Vestimentifera，或深海管蠕虫，包括一个生态和解剖学上不寻常的海洋无脊椎动物群体，对地理学、生态学、系统发生亲缘关系和进化辐射知之甚少。为了深入了解群体内的进化多样性，我们使用了分子生物学方法。我们报告的28 S核糖体DNA的一个区域的克隆从五个vestimentiferan属的代表，再加上比较，多毛类和perviate pogonophore。利用这些DNA序列的系统发育分析证实，Ridgeia和Tevnia是密切相关的属。分析还导致我们提出的假设，最早的vestimentiferan血统分歧产生了属Lamellibrachia只。此外，我们的比较DNA序列数据现在提供了一种手段，使用分子方法来识别深海管蠕虫;我们采用这种方法来证明，第一个vestimentiferan标本来自东大西洋属于属Lamellibrachia。基于DNA的鉴定在胡颓子植物的地理学和生态学研究中具有广泛的应用前景。
The Vestimentifera, or deep-sea tube worms, comprise an ecologically and anatomically unusual group of marine invertebrates, with poorly understood biogeography, ecology, phylogenetic affinities and evolutionary radiation. To gain insight into evolutionary diversification within the group, we have used a molecular biological approach. We report the cloning of a region of 28S ribosomal DNA from representatives of five vestimentiferan genera plus, for comparison, a polychaete and a perviate pogonophore. Phylogenetic analyses using these DNA sequences confirm that Ridgeia and Tevnia are closely related genera. The analyses also lead us to propose the hypothesis that the earliest vestimentiferan lineage to diverge gave rise to the genus Lamellibrachia only. In addition, our comparative DNA sequence data now provide a means to use molecular methods for identification of deep-sea tube worms; we employed this approach to demonstrate that the first vestimentiferan specimen from the eastern Atlantic Ocean belongs to the genus Lamellibrachia. DNA-based identification should have wide applications in the study of vestimentiferan biogeography and ecology.
影响因子：
56.9
作者：
FIELD, KG;OLSEN, GJ;RAFF, RA
通讯作者：
RAFF, RA