Genetic divergence among three sympatric species of Mediterranean Patella (Archaeogastropoda)

Sella, Gabriella; Robotti, Carlo; Biglione, V.

doi:10.1007/bf00349838

Cited by 25 publications

(25 citation statements)

References 25 publications

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“…We have primarily found 2 of the 4 species recognized in the region (Borrell et al 2010), Patella vulgata and P. de pressa. P. ulyssiponensis is located at lower tidal levels (Sella et al 1993), and although P. rustica is also found in the upper intertidal, only 1 individual was collected (in the western zone, in accordance with its distribution, supposedly mainly at the westernmost part of the region) (Borrell et al 2010). No significant population differentiation was found for these limpets, which is consistent with a high dispersal capacity in larval periods (Johnson & Black 1984).…”

Section: Discussionmentioning

confidence: 99%

Evolution of limpet assemblages driven by environmental changes and harvesting in North Iberia

Muñoz-Colmenero¹,

Turrero²,

Hórreo³

et al. 2012

Mar. Ecol. Prog. Ser.

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Two limpet species, Patella depressa and P. vulgata, are the most accessible molluscs in the upper intertidal shore on the coast of Asturias (Northern Spain) and have been consumed by humans for thousands of years, with evidence of harvesting-driven directional selection for size since the Palaeolithic. These 2 species are also highly sensitive to environmental conditions, P. depressa being in expansion under the current warming conditions. Our coalescent analyses of mitochondrial DNA suggest that both species are currently in a process of slow decline in population growth after experiencing a recent bottleneck, presumably enhanced by human exploitation. Over a wider temporal scale, the evolution of these species in Asturias seems associated with climate change, which seems to have driven their expansion across the studied zone. Current differential compositions of Patella assemblages associated with short-term differences in temperature on North Iberian coasts are consistent with the preferred conditions for each species. Human exploitation may have contributed to the most recent changes in limpet population diversity and morphology (size) at a short temporal scale, whilst climate would have caused long-term changes and would be responsible for most of their present population distribution.

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Section: Discussionmentioning

confidence: 99%

Evolution of limpet assemblages driven by environmental changes and harvesting in North Iberia

Muñoz-Colmenero¹,

Turrero²,

Hórreo³

et al. 2012

Mar. Ecol. Prog. Ser.

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“…From these 89 alleles, 66 were species-specific, and among the 23 shared alleles 10 were shared only by two species, with a frequency of less than 0.1 in at least one of them (see Appendix 1). Two loci were shown to be diagnostic between species (MPI and MDH), one of which (MPI) was already reported by Gaffney (1980) for P. vulgata, P. depressa and P. ulyssiponensis from southwest England and by Sella et al (1993) for P. ulyssiponensis, P. rustica and Patella caerulea Linnaeus, 1758 from the Mediterranean Sea.…”

Section: Genetic Variabilitymentioning

confidence: 79%

“…Although other nuclear markers such as SNPs and nuclear sequences are becoming increasingly used, an initial scan of large amounts of the genome is needed, which may be a difficult task in species for which little genomic information is available. Allozymes have already been successfully used to discriminate species of the genus Patella, to study taxonomic problems within the genus (Gaffney, 1980;Côrte-Real et al, 1992;Sella et al, 1993;Côrte-Real et al, 1996a and1996b;Weber et al, 1997;Weber and Hawkins, 2002;Mauro et al, 2003;Weber and Hawkins, 2005) and to study genetic substructuring within species (Hurst and Skibinski, 1995;Weber et al, 1998;Mauro et al 2001;Hawkins, 2005 and. These markers have also been used to study hybridisation between P. depressa, Patella ulyssiponensis Roding 1798 and P. vulgata in southwest England (Gaffney, 1980).…”

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confidence: 99%

High genetic differentiation with no evidence of hybridisation between four limpet species (<i>Patella</i> spp.) revealed by allozyme loci

Sá-Pinto¹,

Alexandrino²,

Branco³

2007

Sci. Mar.

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SUMMARY: The occurrence of hybridisation between limpet species of the genus Patella has always been a contentious issue. Although a previous allozyme study reported high differentiation and no hybridisation between Patella vulgata Linnaeus, 1758, Patella depressa Pennant, 1777 and Patella ulyssiponensis Gmelin, 1791 along English shores, the recent finding of an mtDNA haplotype of P. depressa in a P. vulgata individual raised new doubts on this issue. To further study the possibility of hybridisation between limpet species and their level of genetic differentiation, ten allozyme loci were screened using starch gel electrophoresis for P. ulyssiponensis, P. depressa, P. vulgata and Patella rustica Linnaeus, 1758, from the Atlantic coast of the Iberian Peninsula. Our results show high differentiation between species, which could be clearly separated into different clusters with a Bayesian clustering algorithm. No significant signs of hybridisation were detected between any of the four species. Thus, the hypothesis of hybridisation between P. vulgata and P. depressa across their sympatric distribution is not supported. Two sympatric clusters were recovered within P. vulgata that could be related to HardyWeinberg disequilibrium found in locus MPI. Finally, due to the high level of intraspecific variability, the studied loci are interesting tools for the analysis of population structure and stock identification.Keywords: Patellidae, Patella spp., starch gel electrophoresis, allozymes, hybridisation, genetic polymorphism. RESUMEN: ELEVADA DIFERENCIACIÓN GENÉTICA Y AUSENCIA DE HIBRIDACIÓN ENTRE CUATRO ESPECIES DE LAPAS (PATELLA SPP.) REVELADA POR LOCI ALOENZIMÁTICOS. -La hibridación entre distintas especies de lapas del género Patella siempre ha sido un tema polémico. Aunque un estudio anterior de aloenzimas presenta una elevada diferenciación y ausencia de hibridación entre Patella vulgata Linnaeus, 1758, Patella depressa Pennant, 1777 y Patella ulyssiponensis Gmelin, 1791 en la costa inglesa, el reciente descubrimiento de un individuo de P. vulgata con un haplotipo mitocondrial de P. depressa ha planteado nuevas dudas respecto a este tema. Para estudiar más detalladamente la posibilidad de hibridación entre especies de lapas y su diferenciación genética se han analizado 10 loci aloenzimáticos por electroforesis en gel de almidón, en muestras de P. ulyssiponensis, P. depressa, P. vulgata y Patella rustica Linnaeus, 1758, de la costa atlántica de la península Ibérica. Los resultados así obtenidos evidencian la gran diferenciación existente entre especies, las cuales se separan claramente en distintos grupos con un algoritmo de agrupamiento Bayesiano. La ausencia de evidencias significativas de hibridación entre cualquiera de las cuatro especies estudiadas no permite respaldar la hipótesis de hibridación entre P. depressa y P. vulgata en su área de simpatría. La identificación de dos grupos simpátricos en P. vulgata puede estar relacionada con el desequilibrio de Hardi-Weinberg en el locus MPI. La elevada variabilidad i...

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“…In the Mediterranean Sea, the genus Patella is represented by four species: P. caerulea, P. ulyssiponensis, P. rustica, and P. ferruginea (Sella et al 1993, Mauro et al 2003, Templado 2011. Additionally, Sá-Pinto et al (2010) suggested that one of the three differentiated P. rustica lineages they found around the Adriatic and Aegean seas could represent a cryptic species: P. orientalis.…”

Section: Introductionmentioning

confidence: 99%

“…These species occur sympatrically along the Mediterranean rocky shores, but inhabit different vertical zones. Patella rustica inhabits the upper intertidal zone, while P. caerulea and P. ulyssiponensis inhabit the lower zone on sheltered rocks or rocks exposed to wave action, respectively (Sella et al 1993).…”

Section: Introductionmentioning

confidence: 99%

Filling the limpet gap: molecular characterization of the genus Patella (Patellidae, Gastropoda) in the Algerian coasts of Oran

Kallouche¹,

Acevedo²,

Ghalek³

et al. 2018

Acta Zool Acad Sci H

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Several molecular studies have been conducted on northeastern Atlantic and Mediterranean patellid limpets, but Algerian specimens have never been included in these studies. This work intends to fill this gap and characterize populations of different Patella species inhabiting the Algerian coasts of Oran, clarifying the presence of Patella ferruginea that is considered as endangered. Moreover, comparison of their intraspecific variation with that of other areas might enlighten about populations connectivity and the conservation status of the analysed species.The molecular analyses performed on the samples from Oran's coasts, confirmed the presence of Patella ferruginea, P. rustica and P. caerulea, all of which shared haplotypes with other Mediterranean localities previously analysed. The intraspecific differentiation was limited, with the exception of P. rustica, which showed the greatest diversity, while P. ferruginea, the most endangered species, showed the lowest.

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Genetic divergence among three sympatric species of Mediterranean Patella (Archaeogastropoda)

Cited by 25 publications

References 25 publications

Evolution of limpet assemblages driven by environmental changes and harvesting in North Iberia

Evolution of limpet assemblages driven by environmental changes and harvesting in North Iberia

High genetic differentiation with no evidence of hybridisation between four limpet species (<i>Patella</i> spp.) revealed by allozyme loci

Filling the limpet gap: molecular characterization of the genus Patella (Patellidae, Gastropoda) in the Algerian coasts of Oran

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