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Patterns of variation in Aat-1 allele frequencies in rough periwinkles (Littorina) suggest similar selection regimes rather than conspecificity

Published online by Cambridge University Press:  11 May 2009

J. Grahame ,
P.J. Mill ,
M. Double  and
S.L. Hull
J. Grahame
Affiliation:
Department of Pure & Applied Biology, University of Leeds, Leeds, LS2 9JT
P.J. Mill
Affiliation:
Department of Pure & Applied Biology, University of Leeds, Leeds, LS2 9JT
M. Double
Affiliation:
Department of Pure & Applied Biology, University of Leeds, Leeds, LS2 9JT
S.L. Hull
Affiliation:
Department of Pure & Applied Biology, University of Leeds, Leeds, LS2 9JT
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Abstract

It has been argued by Johannesson & Johannesson (1990b) that the pattern of common genetic variation in Littorina saxatilis (Olivi) and Littorina neglecta Bean indicates gene flow in sympatric populations of these ‘species’. They suggest that L. neglecta is not a good species. We report that a gene diversity analysis of polymorphism in Aat-1 suggests that L. saxatilis and Littorina arcana Hannaford Ellis also show common features in allele frequency distribution. This casts doubt on the argument of Johannesson & Johannesson (1990b) from enzyme polymorphism data on Aat-1 that L. neglecta may simply be an ecotype of L. saxatilis. It seems likely that the similarities are due to operation of the same selection factors on all these species.

Type
Short Communications
Information
Journal of the Marine Biological Association of the United Kingdom , Volume 72 , Issue 2 , May 1992 , pp. 499 - 502
Copyright
Copyright © Marine Biological Association of the United Kingdom 1992

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References

Grahame, J. & Mill, P.J., 1989. Shell shape variation in Littorina saxatilis and L. arcana: a case of character displacement? journal of the Marine Biological Association of the United Kingdom, 69, 837–855.CrossRefGoogle Scholar
Hames, B.D. & Rickwood, D., 1990. Gel electrophoresis of proteins: a practical approach. Oxford: IRL Press.Google Scholar
Harris, H. & Hopkinson, D.A., 1976. Handbook of enzyme electrophoresis in human genetics. Amsterdam: North Holland.Google Scholar
Johannesson, K. & Johannesson, B., 1989. Differences in allele frequencies of Aat between highand mid-rocky shore populations of Littorina saxatilis (Olivi) suggest selection in this enzyme locus. Genetical Research, 54, 7–11.CrossRefGoogle Scholar
Johannesson, B. & Johannesson, K. 1990 a. Littorina neglecta Bean, a morphological form within the variable species Littorina saxatilis (Olivi)? Hydrobiologia, 193, 71–87.CrossRefGoogle Scholar
Johannesson, K. & Johannesson, B., 1990 b. Genetic variation within Littorina saxatilis (Olivi) and Littorina neglecta Bean: is L. neglecta a good species? Hydrobiologia, 193, 89–97.Google Scholar
Knight, A.J. & Ward, R.D., 1991. The genetic relationships of three taxa in the Littorina saxatilis species complex (Prosobranchia: Littorinidae). journal of Molluscan Studies, 57, 81–91.CrossRefGoogle Scholar
Mill, P.J. & Grahame, J., 1988. Esterase variability in the gastropods Littorina saxatilis (Olivi) and L. arcana Ellis. Journal of Molluscan Studies, 54, 347–353.CrossRefGoogle Scholar
Nei, M., 1973. Analysis of gene diversity in subdivided populations. Proceedings of the National Academy of Sciences of the United States of America, 70, 3321–3323.Google Scholar
Shaw, C.R. & Prasad, R., 1970. Starch gel electrophoresis of enzymes - a compilation of recipes. Biochemical Genetics, 4, 297–320.Google Scholar
Ward, R.D. & Janson, K., 1985. A genetic analysis of sympatric subpopulations of the sibling species Littorina saxatilis (Olivi) and Littorina arcana Hannaford Ellis. Journal of Molluscan Studies, 51, 86–94.Google Scholar
Ward, R.D. & Warwick, T., 1980. Genetic differentiation in the molluscan species Littorina rudis and Littorina arcana (Prosobranchia: Littorinidae). Biological Journal of the Linnean Society of London, 14, 417–428.CrossRefGoogle Scholar