Marine Biology

, Volume 114, Issue 4, pp 539–550

Evolutionary genetics of marine Mysis spp. (Crustacea: Mysidacea)

  • R. Väinölä
Article

DOI: 10.1007/BF00357251

Cite this article as:
Väinölä, R. Marine Biology (1992) 114: 539. doi:10.1007/BF00357251

Abstract

Inter-and intraspecific allozyme differentiation in the mysid crustacean genus Mysis in the North Atlantic region was studied in order to evaluate earlier concepts of evolutionary and systematic relationships and to assess patterns of subdivision within widespread taxa. The results support a relatively ancient divergence of the marine and non-marine species of the genus, and are generally in line with the current subgeneric tridivision into Mysis s.str., Michteimysis and Auricomysis. However, the North American littoral species M. gaspensis should be returned to subgenus Mysis s.str. from its present position in Michteimysis with M. mixta. The closest observed affinities within Mysis s.str. were between M. gaspensis and the freshwater M. relicta group, and between M. oculata and M. litoralis. Intraspecific differentiation among North European coastal populations of M. oculata and M. litoralis was moderately strong (FST≃0.1), suggesting population bottlenecks and limited dispersal in the post-glacial time. On the other hand, ransoceanic differences were not essentially greater, indicating the systematic homogeneity and long-term dispersal capacity in the marine species. This contrasts with the strong genetic and systematic fragmentation earlier found within the circumboreal M. relicta species group.

Copyright information

© Springer-Verlag 1992

Authors and Affiliations

  • R. Väinölä
    • 1
  1. 1.Department of GeneticsUniversity of HelsinkiHelsinkiFinland