Genetic diversity and structure of the vulnerable species Prosopis chilensis (Molina) Stuntz in the Coquimbo Region, Chile

ABSTRACT The Prosopis genus (Mimosoideae, Leguminosae) constitutes an important genetic resource for arid and semiarid environments. Prosopis chilensis (Molina) Stuntz is a multipurpose species native to South America, which displays high phenotypic variability. In Chile, this species grows in the s...

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Autores principales:	Moncada,Ximena, Plaza,Daniel, Stoll,Alexandra, Payacan,Claudia, Seelenfreund,Daniela, Martínez,Enrique, Bertin,Angéline, Squeo,Francisco A.
Lenguaje:	English
Publicado:	Facultad de Ciencias Naturales y Oceanográficas, Universidad de Concepción 2019
Materias:	Arid zones biodiversity microsatellites transverse valleys spatial principal component analysis (sPCA)
Acceso en línea:	http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0717-66432019000100091
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spelling	oai:scielo:S0717-664320190001000912019-08-28Genetic diversity and structure of the vulnerable species Prosopis chilensis (Molina) Stuntz in the Coquimbo Region, ChileMoncada,XimenaPlaza,DanielStoll,AlexandraPayacan,ClaudiaSeelenfreund,DanielaMartínez,EnriqueBertin,AngélineSqueo,Francisco A. Arid zones biodiversity microsatellites transverse valleys spatial principal component analysis (sPCA) ABSTRACT The Prosopis genus (Mimosoideae, Leguminosae) constitutes an important genetic resource for arid and semiarid environments. Prosopis chilensis (Molina) Stuntz is a multipurpose species native to South America, which displays high phenotypic variability. In Chile, this species grows in the semiarid region, along river beds of the transverse valleys. We studied the genetic diversity and population genetic structure of P. chilensis across the three transverse valleys of the Coquimbo Region (29º-32ºS) by analysing the genetic diversity of 182 individuals with four nuclear and one chloroplast microsatellite markers. Using a spatial principal component analysis (sPCA), we detected a clear hierarchical genetic structure. This analysis revealed the existence of seven distinct genetic clusters throughout the whole studied region. None of the genetic clusters detected overlapped between valleys. This suggests that the mountain ridges separating the three transverse valleys may have exerted a barrier effect. However, while significant, population differentiation was low and most of the genetic variation was found within clusters. These results suggest that high gene flow might be counteracting and blurring the effects of the structuring factors. This is the first study of genetic population of P. chilensis in Chile and the genetic data obtained may be valuable for the conservation of this vulnerable, multipurpose tree species.info:eu-repo/semantics/openAccessFacultad de Ciencias Naturales y Oceanográficas, Universidad de ConcepciónGayana. Botánica v.76 n.1 20192019-06-01text/htmlhttp://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0717-66432019000100091en10.4067/S0717-66432019000100091
institution	Scielo Chile
collection	Scielo Chile
language	English
topic	Arid zones biodiversity microsatellites transverse valleys spatial principal component analysis (sPCA)
spellingShingle	Arid zones biodiversity microsatellites transverse valleys spatial principal component analysis (sPCA) Moncada,Ximena Plaza,Daniel Stoll,Alexandra Payacan,Claudia Seelenfreund,Daniela Martínez,Enrique Bertin,Angéline Squeo,Francisco A. Genetic diversity and structure of the vulnerable species Prosopis chilensis (Molina) Stuntz in the Coquimbo Region, Chile
description	ABSTRACT The Prosopis genus (Mimosoideae, Leguminosae) constitutes an important genetic resource for arid and semiarid environments. Prosopis chilensis (Molina) Stuntz is a multipurpose species native to South America, which displays high phenotypic variability. In Chile, this species grows in the semiarid region, along river beds of the transverse valleys. We studied the genetic diversity and population genetic structure of P. chilensis across the three transverse valleys of the Coquimbo Region (29º-32ºS) by analysing the genetic diversity of 182 individuals with four nuclear and one chloroplast microsatellite markers. Using a spatial principal component analysis (sPCA), we detected a clear hierarchical genetic structure. This analysis revealed the existence of seven distinct genetic clusters throughout the whole studied region. None of the genetic clusters detected overlapped between valleys. This suggests that the mountain ridges separating the three transverse valleys may have exerted a barrier effect. However, while significant, population differentiation was low and most of the genetic variation was found within clusters. These results suggest that high gene flow might be counteracting and blurring the effects of the structuring factors. This is the first study of genetic population of P. chilensis in Chile and the genetic data obtained may be valuable for the conservation of this vulnerable, multipurpose tree species.
author	Moncada,Ximena Plaza,Daniel Stoll,Alexandra Payacan,Claudia Seelenfreund,Daniela Martínez,Enrique Bertin,Angéline Squeo,Francisco A.
author_facet	Moncada,Ximena Plaza,Daniel Stoll,Alexandra Payacan,Claudia Seelenfreund,Daniela Martínez,Enrique Bertin,Angéline Squeo,Francisco A.
author_sort	Moncada,Ximena
title	Genetic diversity and structure of the vulnerable species Prosopis chilensis (Molina) Stuntz in the Coquimbo Region, Chile
title_short	Genetic diversity and structure of the vulnerable species Prosopis chilensis (Molina) Stuntz in the Coquimbo Region, Chile
title_full	Genetic diversity and structure of the vulnerable species Prosopis chilensis (Molina) Stuntz in the Coquimbo Region, Chile
title_fullStr	Genetic diversity and structure of the vulnerable species Prosopis chilensis (Molina) Stuntz in the Coquimbo Region, Chile
title_full_unstemmed	Genetic diversity and structure of the vulnerable species Prosopis chilensis (Molina) Stuntz in the Coquimbo Region, Chile
title_sort	genetic diversity and structure of the vulnerable species prosopis chilensis (molina) stuntz in the coquimbo region, chile
publisher	Facultad de Ciencias Naturales y Oceanográficas, Universidad de Concepción
publishDate	2019
url	http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0717-66432019000100091
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Genetic diversity and structure of the vulnerable species Prosopis chilensis (Molina) Stuntz in the Coquimbo Region, Chile

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