Biochemical Genetics

, Volume 49, Issue 3–4, pp 139–152 | Cite as

Identification, Inheritance, and Variation of Microsatellite Markers in the Black Scallop Mimachlamys varia

  • Alberto Arias
  • Ruth Freire
  • Juan Pablo De La Roche
  • Guillermo Román
  • Josefina Méndez
  • Ana InsuaEmail author


Five polymorphic microsatellite loci were identified in the black scallop Mimachlamys varia after construction of a genomic library enriched for (GT)n. To examine the transmission pattern of microsatellite alleles, several families were created and genotypes scored for three loci. The expected Mendelian ratios were found in 12 of 14 segregations examined. Unexpected segregations may be explained by a genotyping error (allelic dropout), given that when a specific allele was treated as dominant, the phenotypic ratios conformed to Mendelian expectations. The five loci were also examined in two samples from the Spanish coast. The two localities displayed similar mean values for the number of alleles per locus (7.2–8.4), allelic richness (7.2–7.9), and observed (0.389–0.484) and expected heterozygosity (0.545–0.618). Significant Hardy–Weinberg deviations were observed at three loci, with heterozygote deficiency occurring in all cases. Global multilocus θ value and allele frequencies at one locus revealed significant differentiation between the two localities.


Mimachlamys varia Microsatellite markers Segregation analysis Genetic diversity Population differentiation 



We thank Dr. Ricardo Pérez and Dr. Pedro Cruz for assisting in the microsatellite genotyping, Jose García Gil for technical assistance in the laboratory, and anonymous reviewers for constructive comments. This study was supported by Ministerio de Ciencia y Tecnología of Spain through project ACU01-022-C2-2.


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Copyright information

© Springer Science+Business Media, LLC 2010

Authors and Affiliations

  • Alberto Arias
    • 1
  • Ruth Freire
    • 1
  • Juan Pablo De La Roche
    • 2
  • Guillermo Román
    • 2
  • Josefina Méndez
    • 1
  • Ana Insua
    • 1
    Email author
  1. 1.Departamento de Biología Celular y MolecularUniversidade da CoruñaA CoruñaSpain
  2. 2.Instituto Español de OceanografíaCentro Oceanográfico de A CoruñaA CoruñaSpain

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