Deep genetic structure at a small spatial scale in the endangered land snail Xerocrassa montserratensis

Abstract Species with small geographic ranges do not tend to have a high genetic structure, but some land snail species seem to be an exception. Xerocrassa montserratensis, an endangered land snail endemic to Catalonia (northeastern Iberian Peninsula), is an excellent model to study the processes af...

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Autores principales:	Cristina Català, Vicenç Bros, Xavier Castelltort, Xavier Santos, Marta Pascual
Formato:	article
Lenguaje:	EN
Publicado:	Nature Portfolio 2021
Materias:	Medicine R Science Q
Acceso en línea:	https://doaj.org/article/676b8de286ff47bd97e604bcea3c6286
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spelling	oai:doaj.org-article:676b8de286ff47bd97e604bcea3c62862021-12-02T17:32:58ZDeep genetic structure at a small spatial scale in the endangered land snail Xerocrassa montserratensis10.1038/s41598-021-87741-72045-2322https://doaj.org/article/676b8de286ff47bd97e604bcea3c62862021-04-01T00:00:00Zhttps://doi.org/10.1038/s41598-021-87741-7https://doaj.org/toc/2045-2322Abstract Species with small geographic ranges do not tend to have a high genetic structure, but some land snail species seem to be an exception. Xerocrassa montserratensis, an endangered land snail endemic to Catalonia (northeastern Iberian Peninsula), is an excellent model to study the processes affecting the phylogeography of specialized species of conservation concern. This species is restricted to xerophilous stony slopes and occurs within a small and fragmented area of ca. 500 km2. We sequenced the COI barcode region of 152 individuals from eight sites covering the entire range of the species. We found four genetic groups mostly coincident with their geographic distribution: a central ancestral group containing shared haplotypes among five localities and three groups restricted to a single locality each. Two of these derived groups were geographically and genetically isolated, while the third and most differentiated group was not geographically isolated. Geomorphologic and paleoclimatic processes during the Pleistocene can explain the divergence found between populations of this low dispersal species with historical fragmentation and secondary contacts. Nonetheless, recent passive large dispersal through streams was also detected in the central group. Overall, our study uncovered four evolutionary units, partially matching morphologically described subspecies, which should be considered in future conservation actions.Cristina CatalàVicenç BrosXavier CastelltortXavier SantosMarta PascualNature PortfolioarticleMedicineRScienceQENScientific Reports, Vol 11, Iss 1, Pp 1-10 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	Medicine R Science Q
spellingShingle	Medicine R Science Q Cristina Català Vicenç Bros Xavier Castelltort Xavier Santos Marta Pascual Deep genetic structure at a small spatial scale in the endangered land snail Xerocrassa montserratensis
description	Abstract Species with small geographic ranges do not tend to have a high genetic structure, but some land snail species seem to be an exception. Xerocrassa montserratensis, an endangered land snail endemic to Catalonia (northeastern Iberian Peninsula), is an excellent model to study the processes affecting the phylogeography of specialized species of conservation concern. This species is restricted to xerophilous stony slopes and occurs within a small and fragmented area of ca. 500 km2. We sequenced the COI barcode region of 152 individuals from eight sites covering the entire range of the species. We found four genetic groups mostly coincident with their geographic distribution: a central ancestral group containing shared haplotypes among five localities and three groups restricted to a single locality each. Two of these derived groups were geographically and genetically isolated, while the third and most differentiated group was not geographically isolated. Geomorphologic and paleoclimatic processes during the Pleistocene can explain the divergence found between populations of this low dispersal species with historical fragmentation and secondary contacts. Nonetheless, recent passive large dispersal through streams was also detected in the central group. Overall, our study uncovered four evolutionary units, partially matching morphologically described subspecies, which should be considered in future conservation actions.
format	article
author	Cristina Català Vicenç Bros Xavier Castelltort Xavier Santos Marta Pascual
author_facet	Cristina Català Vicenç Bros Xavier Castelltort Xavier Santos Marta Pascual
author_sort	Cristina Català
title	Deep genetic structure at a small spatial scale in the endangered land snail Xerocrassa montserratensis
title_short	Deep genetic structure at a small spatial scale in the endangered land snail Xerocrassa montserratensis
title_full	Deep genetic structure at a small spatial scale in the endangered land snail Xerocrassa montserratensis
title_fullStr	Deep genetic structure at a small spatial scale in the endangered land snail Xerocrassa montserratensis
title_full_unstemmed	Deep genetic structure at a small spatial scale in the endangered land snail Xerocrassa montserratensis
title_sort	deep genetic structure at a small spatial scale in the endangered land snail xerocrassa montserratensis
publisher	Nature Portfolio
publishDate	2021
url	https://doaj.org/article/676b8de286ff47bd97e604bcea3c6286
work_keys_str_mv	AT cristinacatala deepgeneticstructureatasmallspatialscaleintheendangeredlandsnailxerocrassamontserratensis AT vicencbros deepgeneticstructureatasmallspatialscaleintheendangeredlandsnailxerocrassamontserratensis AT xaviercastelltort deepgeneticstructureatasmallspatialscaleintheendangeredlandsnailxerocrassamontserratensis AT xaviersantos deepgeneticstructureatasmallspatialscaleintheendangeredlandsnailxerocrassamontserratensis AT martapascual deepgeneticstructureatasmallspatialscaleintheendangeredlandsnailxerocrassamontserratensis
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Deep genetic structure at a small spatial scale in the endangered land snail Xerocrassa montserratensis

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