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Excess allozyme homozygosity and breeding population structure in the Mussel Mytilus californianus

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Abstract

Genetic variability and the distribution of this variability was examined in two size classes (1 to 2 mm and 9 to 10 cm valves) of the mussel Mytilus californianus. Marked homozygote excess was observed at two polymorphic loci (Lap and Pgi), and the excess was far greater in juveniles than in adults. It is suggested that both the homozygote excess and the significantly greater excess in juveniles are due to subdivision in the reproductive population.

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Literature Cited

  • Ackerman, J.M.: The demography of the marine mussel, Mytilus californianus, 139 pp. Ph.D. Thesis, University of California, Berkeley 1971

    Google Scholar 

  • Ayala, F.J., D. Hedgecock, G.S. Zumwalt and J.W. Valentine: Genetic variation in Tridacna maxima, an ecological analog of some unsuccessful evolutionary lineages. Evolution, Lancaster, Pa. 27, 177–191 (1973)

    Google Scholar 

  • —, J.R. Powell, M.L. Tracey, C.A. Mourão and S. Pérez-Salas: Enzyme variability in the Drosophila willistoni group IV. Genic variation in natural populations of Drosophila willistoni. Genetics, Austin, Tex. 70, 113–139 (1972)

    Google Scholar 

  • —, J.W. Valentine, L.G. Barr and G.S. Zumwalt: Genetic variability in a temperate intertidal phoronid, Phoronopsis viridis. Biochem. Genet. 11, 413–427 (1974)

    PubMed  Google Scholar 

  • Bartlett, B.R.: Reproductive ecology of the California sea mussel Mytilus californianus, 87 pp. Unpublished M.Sc. Thesis, University of California, Berkeley 1972

    Google Scholar 

  • Boyer, J.F.: Clinal and size-dependent variation at the LAP Locus in Mytilus edulis. Biol. Bull. mar. biol. Lab., Woods Hole 147, 535–549 (1974)

    Google Scholar 

  • Fretter, V. and A. Graham: Reproduction. In: Physiology of Mollusca, Volume I. pp 127–164. Ed. by K.M. Wilbur and C.M. Yonge. New York: Academic Press 1964

    Google Scholar 

  • Gresham, M. and M. Tracey: Genetic variation in an intertidal gastropod, Collisella digitalis Genetics, Austin, Tex. (In press)

  • Koehn, R.K. and J.B. Mitton: Population genetics of marine pelecypods. I. Ecological heterogeneity and evolutionary strategy at an enzyme locus. Am. Nat. 106, 47–56 (1972)

    Article  Google Scholar 

  • —, F.J. Turano and J.B. Mitton: Population genetics in marine pelecypods. II. Genetic differences in microhabitats of Modiolus demissus. Evolution, Lancaster, Pa. 27, 100–105 (1973)

    Google Scholar 

  • Levene, H.: On a matching problem arising in genetics. Ann. math. Statist. 20, 91–94 (1949)

    Google Scholar 

  • Li, C.C.: Population genetics, 366 pp. Chicago: University of Chicago Press 1955

    Google Scholar 

  • Milkman, R.D. and L.D. Beaty: Large Scale electrophoretic studies of allelic variation in Mytilus edulis. Biol. Bull. mar. biol. Lab., Woods Hole 139, p. 430 (1970)

    Google Scholar 

  • Ricketts, E.F., J. Calvin and J.W. Hedgpeth: Between Pacific tides, 4th ed. 614 pp. Stanford, California: Stanford University Press 1968

    Google Scholar 

  • Scheltema, R.A.: Dispersal of larvae as a means of genetic exchange between widely separated populations of shoal-water benthic invertebrate species. In: Proc. Eur. mar. Biol. Symp. 5, 101–114 (1972)

  • Tracey, M.L., K. Nelson, D. Hedgecock, R. Shleser and M. Pressick: Biochemical genetics of lobsters (Homarus): genetic variation and the structure of American lobster populations. J. Fish. Res. Bd Can. (In press)

  • Wright, S.: Isolation by distance. Genetics, Austin, Tex. 28, 114–138 (1943)

    Google Scholar 

  • —: Evolution and the genetics of populations, Vol. 2. The theory of gene frequencies, 511 pp. Chicago: University of Chicago Press 1969

    Google Scholar 

  • Young, R.T.: Spawning season of the California mussel, Mytilus californianus. Ecology 23, 490–492 (1942)

    Google Scholar 

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Communicated by T.R. Parsons, Vancouver

Research supported by Grant No. 04-3-158-22-FA4 from the Sea Grant Agency.

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Tracey, M.L., Bellet, N.F. & Gravem, C.D. Excess allozyme homozygosity and breeding population structure in the Mussel Mytilus californianus . Mar. Biol. 32, 303–311 (1975). https://doi.org/10.1007/BF00399209

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