Scale-dependent post-establishment spread and genetic diversity in an invading mollusc in South America

Aims Our study aimed to characterize the dispersal dynamics and population genetic structure of the introduced golden mussel Limnoperna fortunei throughout its invaded range in South America and to determine how different dispersal methods, that is, human-mediated dispersal and downstream natural di...

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Autores principales:	Perepelizin, Pablo Víctor, Paolucci, Esteban Marcelo, Sylvester, Francisco
Publicado:	2012
Materias:	Biological invasions Dispersal mechanism Genetic differentiation Golden mussel Limnoperna fortunei Non-indigenous species Population structure biological invasion conservation genetics dispersal genetic marker genetic structure genetic variation introduced species larval settlement mollusc phylogenetics population structure South America Limnoperna fortunei Mollusca
Acceso en línea:	https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_13669516_v18_n10_p1042_Zhan http://hdl.handle.net/20.500.12110/paper_13669516_v18_n10_p1042_Zhan
Aporte de:	Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA) de Universidad de Buenos Aires

id	paper:paper_13669516_v18_n10_p1042_Zhan
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spelling	paper:paper_13669516_v18_n10_p1042_Zhan2025-07-30T18:47:49Z Scale-dependent post-establishment spread and genetic diversity in an invading mollusc in South America Perepelizin, Pablo Víctor Paolucci, Esteban Marcelo Sylvester, Francisco Biological invasions Dispersal mechanism Genetic differentiation Golden mussel Limnoperna fortunei Non-indigenous species Population structure biological invasion conservation genetics dispersal genetic marker genetic structure genetic variation introduced species larval settlement mollusc phylogenetics population structure South America Limnoperna fortunei Mollusca Aims Our study aimed to characterize the dispersal dynamics and population genetic structure of the introduced golden mussel Limnoperna fortunei throughout its invaded range in South America and to determine how different dispersal methods, that is, human-mediated dispersal and downstream natural dispersal, contribute to genetic variation among populations. Location Paraná-Uruguay-Río de la Plata watershed in Argentina, Brazil, Paraguay and Uruguay. Methods We performed genetic analyses based on a comprehensive sampling strategy encompassing 22 populations (N=712) throughout the invaded range in South America, using the mitochondrial cytochrome c oxidase subunit I (COI) gene and eight polymorphic nuclear microsatellites. We employed both population genetics and phylogenetic analyses to clarify the dispersal dynamics and population genetic structure. Results We detected relatively high genetic differentiation between populations (F ST=-0.041 to 0.111 for COI, -0.060 to 0.108 for microsatellites) at both fine and large geographical scales. Bayesian clustering and three-dimensional factorial correspondence analyses consistently revealed two genetically distinct clusters, highlighting genetic discontinuities in the invaded range. Results of all genetic analyses suggest ship-mediated 'jump' dispersal as the dominant mode of spread of golden mussels in South America, while downstream natural dispersal has had limited effects on contemporary genetic patterns. Main conclusions Our study provides new evidence that post-establishment dispersal dynamics and genetic patterns vary across geographical scales. While ship-mediated 'jump' dispersal dominates post-establishment spread of golden mussels in South America, once colonies become established in upstream locations, larvae produced may be advected downstream to infill patchy distributions. Moreover, genetic structuring at fine geographical scales, especially within the same drainages, suggests a further detailed understanding of dynamics of larval dispersal and settlement in different water systems. Knowledge of the mechanisms by which post-establishment spread occurs can, in some cases, be used to limit dispersal of golden mussels and other introduced species. © 2012 Blackwell Publishing Ltd. Fil:Perepelizin, P.V. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina. Fil:Paolucci, E. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina. Fil:Sylvester, F. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina. 2012 https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_13669516_v18_n10_p1042_Zhan http://hdl.handle.net/20.500.12110/paper_13669516_v18_n10_p1042_Zhan
institution	Universidad de Buenos Aires
institution_str	I-28
repository_str	R-134
collection	Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA)
topic	Biological invasions Dispersal mechanism Genetic differentiation Golden mussel Limnoperna fortunei Non-indigenous species Population structure biological invasion conservation genetics dispersal genetic marker genetic structure genetic variation introduced species larval settlement mollusc phylogenetics population structure South America Limnoperna fortunei Mollusca
spellingShingle	Biological invasions Dispersal mechanism Genetic differentiation Golden mussel Limnoperna fortunei Non-indigenous species Population structure biological invasion conservation genetics dispersal genetic marker genetic structure genetic variation introduced species larval settlement mollusc phylogenetics population structure South America Limnoperna fortunei Mollusca Perepelizin, Pablo Víctor Paolucci, Esteban Marcelo Sylvester, Francisco Scale-dependent post-establishment spread and genetic diversity in an invading mollusc in South America
topic_facet	Biological invasions Dispersal mechanism Genetic differentiation Golden mussel Limnoperna fortunei Non-indigenous species Population structure biological invasion conservation genetics dispersal genetic marker genetic structure genetic variation introduced species larval settlement mollusc phylogenetics population structure South America Limnoperna fortunei Mollusca
description	Aims Our study aimed to characterize the dispersal dynamics and population genetic structure of the introduced golden mussel Limnoperna fortunei throughout its invaded range in South America and to determine how different dispersal methods, that is, human-mediated dispersal and downstream natural dispersal, contribute to genetic variation among populations. Location Paraná-Uruguay-Río de la Plata watershed in Argentina, Brazil, Paraguay and Uruguay. Methods We performed genetic analyses based on a comprehensive sampling strategy encompassing 22 populations (N=712) throughout the invaded range in South America, using the mitochondrial cytochrome c oxidase subunit I (COI) gene and eight polymorphic nuclear microsatellites. We employed both population genetics and phylogenetic analyses to clarify the dispersal dynamics and population genetic structure. Results We detected relatively high genetic differentiation between populations (F ST=-0.041 to 0.111 for COI, -0.060 to 0.108 for microsatellites) at both fine and large geographical scales. Bayesian clustering and three-dimensional factorial correspondence analyses consistently revealed two genetically distinct clusters, highlighting genetic discontinuities in the invaded range. Results of all genetic analyses suggest ship-mediated 'jump' dispersal as the dominant mode of spread of golden mussels in South America, while downstream natural dispersal has had limited effects on contemporary genetic patterns. Main conclusions Our study provides new evidence that post-establishment dispersal dynamics and genetic patterns vary across geographical scales. While ship-mediated 'jump' dispersal dominates post-establishment spread of golden mussels in South America, once colonies become established in upstream locations, larvae produced may be advected downstream to infill patchy distributions. Moreover, genetic structuring at fine geographical scales, especially within the same drainages, suggests a further detailed understanding of dynamics of larval dispersal and settlement in different water systems. Knowledge of the mechanisms by which post-establishment spread occurs can, in some cases, be used to limit dispersal of golden mussels and other introduced species. © 2012 Blackwell Publishing Ltd.
author	Perepelizin, Pablo Víctor Paolucci, Esteban Marcelo Sylvester, Francisco
author_facet	Perepelizin, Pablo Víctor Paolucci, Esteban Marcelo Sylvester, Francisco
author_sort	Perepelizin, Pablo Víctor
title	Scale-dependent post-establishment spread and genetic diversity in an invading mollusc in South America
title_short	Scale-dependent post-establishment spread and genetic diversity in an invading mollusc in South America
title_full	Scale-dependent post-establishment spread and genetic diversity in an invading mollusc in South America
title_fullStr	Scale-dependent post-establishment spread and genetic diversity in an invading mollusc in South America
title_full_unstemmed	Scale-dependent post-establishment spread and genetic diversity in an invading mollusc in South America
title_sort	scale-dependent post-establishment spread and genetic diversity in an invading mollusc in south america
publishDate	2012
url	https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_13669516_v18_n10_p1042_Zhan http://hdl.handle.net/20.500.12110/paper_13669516_v18_n10_p1042_Zhan
work_keys_str_mv	AT perepelizinpablovictor scaledependentpostestablishmentspreadandgeneticdiversityinaninvadingmolluscinsouthamerica AT paolucciestebanmarcelo scaledependentpostestablishmentspreadandgeneticdiversityinaninvadingmolluscinsouthamerica AT sylvesterfrancisco scaledependentpostestablishmentspreadandgeneticdiversityinaninvadingmolluscinsouthamerica
_version_	1840325960594882560

Scale-dependent post-establishment spread and genetic diversity in an invading mollusc in South America

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