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High genetic similarity between geographically distant populations in a sea anemone with low dispersal capabilities

Published online by Cambridge University Press:  09 October 2019

A.M. Cava-Solé ,
J.P. Thorpe  and
C.D. Todd
A.M. Cava-Solé
Affiliation:
Department of Environmental and Evolutionary Biology, The University of Liverpool, Port Erin Marine Laboratory, Port Erin, Isle of Man. Departamento de Genética, Instituto de Biologia, Universidade Federal do Rio de Janeiro, Bloco A, CCS, Cidade Universitária, Ilha do Fundão, 21.941-Rio de Janeiro-RJ, Brazil.
J.P. Thorpe
Affiliation:
Department of Environmental and Evolutionary Biology, The University of Liverpool, Port Erin Marine Laboratory, Port Erin, Isle of Man.
C.D. Todd
Affiliation:
Gatty Marine Laboratory, Department of Biology and Preclinical Medicine, University of St Andrews, St Andrews, Fife, Scotland, KY16 8LB
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Abstract

Samples of the large sublittoral sea anemone Urticina eques (Gosse) were collected from three localities in the northern North Sea and from one locality in the northern Irish Sea. Around the coast the total distance between sampling sites is approximately 1,200 km. The species has a large lecithotrophic larva which may not be planktonic. All samples were screened genetically for 13 loci coding for 11 different enzymes. Results overall indicated a high degree of genetic uniformity over the four populations sampled (FST = 0·025). The data are discussed in relation to current ideas of larval dispersal and results from other similar studies. It is concluded that the lack of genetic differentiation shown by Urticina eques is surprising given the apparently poor dispersive powers of the larva.

Type
Research Article
Information
Journal of the Marine Biological Association of the United Kingdom , Volume 74 , Issue 4 , November 1994 , pp. 895 - 902
Copyright
Copyright © Marine Biological Association of the United Kingdom 1994

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