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Genetic characterization of the Asian clam species complex (Corbicula) invasion in the Iberian Peninsula

The Asian clam (Corbicula sp.) is an invasive freshwater bivalve native to Asia, the Middle East, Australia, and Africa. It is now widely distributed around the world producing large ecological and economic impacts. Three well-described invasive lineages form a cryptic species complex with asexual reproduction based on androgenesis. In this study, we collected 175 individuals from different Iberian, European, and North American locations to genetically study Corbicula invasion in the Iberian Peninsula using COI and 28S genes. The use of mitochondrial and nuclear markers allows us to characterize both maternal and paternal inheritance from androgenetic Corbicula locations and to deal with the incongruences caused by egg parasitism. We identified 7 COI and 10 28S haplotypes that grouped individuals within the three invasive Corbicula lineages. Haplotype distribution of mitochondrial and nuclear markers detected genetic divergence between the Ebro Delta location and the rest of Iberian sites, suggesting that at least two invasion episodes occurred in the Iberian Peninsula. Haplotype distribution also suggested secondary contacts between Iberian and other European invaded regions. Additionally, results revealed that nuclear hybridization, a feature more widespread than previously reported, contributes to retain gene diversity in the Corbicula invasion

This research was carried out within the objectives of the research project CGL200909407 of the Spanish Ministerio de Ciencia e Innovacio´n (MICINN). LP received a PhD fellowship support of the Spanish MICINN with reference BES—2010037446

© Hydrobiologia, 2017, vol. 784, núm. 1, p. 349-365

Springer Verlag

Manager: Ministerio de Ciencia e Innovación (Espanya)
Author: Peñarrubia Lozano, Luis
Araguas Solà, Rosa M.
Vidal Fàbrega, Oriol
Pla Zanuy, Carles
Viñas de Puig, Jordi
Sanz Ball-llosera, Núria
Date: 2017 January
Abstract: The Asian clam (Corbicula sp.) is an invasive freshwater bivalve native to Asia, the Middle East, Australia, and Africa. It is now widely distributed around the world producing large ecological and economic impacts. Three well-described invasive lineages form a cryptic species complex with asexual reproduction based on androgenesis. In this study, we collected 175 individuals from different Iberian, European, and North American locations to genetically study Corbicula invasion in the Iberian Peninsula using COI and 28S genes. The use of mitochondrial and nuclear markers allows us to characterize both maternal and paternal inheritance from androgenetic Corbicula locations and to deal with the incongruences caused by egg parasitism. We identified 7 COI and 10 28S haplotypes that grouped individuals within the three invasive Corbicula lineages. Haplotype distribution of mitochondrial and nuclear markers detected genetic divergence between the Ebro Delta location and the rest of Iberian sites, suggesting that at least two invasion episodes occurred in the Iberian Peninsula. Haplotype distribution also suggested secondary contacts between Iberian and other European invaded regions. Additionally, results revealed that nuclear hybridization, a feature more widespread than previously reported, contributes to retain gene diversity in the Corbicula invasion
This research was carried out within the objectives of the research project CGL200909407 of the Spanish Ministerio de Ciencia e Innovacio´n (MICINN). LP received a PhD fellowship support of the Spanish MICINN with reference BES—2010037446
Format: application/pdf
Citation: 025386
ISSN: 0018-8158 (versió paper)
1573-5117 (versió electrònica)
Document access: http://hdl.handle.net/10256/13103
Language: eng
Publisher: Springer Verlag
Collection: MICINN/PN 2010-2013/CGL2009-09407
Reproducció digital del document publicat a: http://dx.doi.org/10.1007/s10750-016-2888-2
Articles publicats (D-B)
Is part of: © Hydrobiologia, 2017, vol. 784, núm. 1, p. 349-365
Rights: Tots els drets reservats
Subject: Animals invasors
Introduced organisms
Genètica animal
Animal genetics
Title: Genetic characterization of the Asian clam species complex (Corbicula) invasion in the Iberian Peninsula
Type: info:eu-repo/semantics/article
Repository: DUGiDocs

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