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Patterns of spatial genetic structuring in the endangered limpet Patella ferruginea: implications for the conservation of a Mediterranean endemic

Casu, Marco and Rivera Ingraham, Georgina Alexandra and Cossu, Piero and Lai, Tiziana and Sanna, Daria and Dedola, Gian Luca and Sussarellu, Rossana and Sella, Gabriella and Cristo, Benedetto and Curini Galletti, Marco and García Gómez, José Carlos and Espinosa, Free (2012) Patterns of spatial genetic structuring in the endangered limpet Patella ferruginea: implications for the conservation of a Mediterranean endemic. Genetica, Vol. 139 (10), p. 1293-1308. eISSN 1573-6857. Article.

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DOI: 10.1007/s10709-012-9631-3

Abstract

Patella ferruginea Gmelin, 1791 is an endangered marine gastropod endemic to the Western Mediterranean. Its range is restricted to the Sardinian-Corsican region (SCR), North Africa, a few scattered sites in Southern Spain, and Sicily. Inter-simple sequence repeat (ISSR) markers and three different mitochondrial DNA (mtDNA) regions, Cytochrome c Oxidase subunit I, 12S (small-subunit ribosomal RNA gene) and 16S (large-subunit ribosomal RNA gene), were used to investigate the presence of genetic population structuring. The mtDNA sequences showed very low levels of genetic differentiation. Conversely, ISSRs showed the presence of two main genetic groups, corresponding to Spain, North Africa and Sicily and the SCR. The SCR was further split into two subgroups. The ISSR results suggest that, on a regional scale, the genetic structure of P. ferruginea is mainly determined by the restriction of gene flow by dispersal barriers. On a more local scale human harvesting may play a crucial role in population structuring by increasing the effect of genetic drift.

Item Type:Article
ID Code:7344
Status:Published
Refereed:Yes
Uncontrolled Keywords:Genetic structure, inter-simple sequence repeat, mitochondrial DNA regions, mollusca, population connectivity
Subjects:Area 05 - Scienze biologiche > BIO/05 Zoologia
Divisions:001 Università di Sassari > 01-a Nuovi Dipartimenti dal 2012 > Scienze della Natura e del Territorio
Publisher:Springer
eISSN:1573-6857
Deposited On:06 Apr 2012 13:45

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