Phylogeography of the purple snail Plicopurpura pansa along the Mexican Pacific coast

Phylogeography of the purple snail Plicopurpura pansa along the Mexican Pacific coast

The purple snail Plicopurpura pansa is a common member of the rocky intertidal community of the Tropical Eastern Pacific. It has a free-living larva that is dispersed by marine currents. We analyzed the demographic (historic), genetic, and phylogeographic structure of P. pansa using a fragment of th...

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Autores principales: López-Chávez, Felipe J, Chassin-Noria, Omar, Ríos-Chávez, Patricia, Rocha-Ramírez, Víctor, Macip-Ríos, Rodrigo, Oyama, Ken
Formato: info:eu-repo/semantics/article
Lenguaje:eng
Publicado: Iniversidad Autónoma de Baja California 2016
Acceso en línea:https://www.cienciasmarinas.com.mx/index.php/cmarinas/article/view/2576
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spelling repositorioinstitucional-20.500.12930-74942023-05-09T14:30:57Z Phylogeography of the purple snail Plicopurpura pansa along the Mexican Pacific coast Filogeografía del caracol púrpura Plicopurpura pansa a lo largo de la costa del Pacífico mexicano López-Chávez, Felipe J Chassin-Noria, Omar Ríos-Chávez, Patricia Rocha-Ramírez, Víctor Macip-Ríos, Rodrigo Oyama, Ken The purple snail Plicopurpura pansa is a common member of the rocky intertidal community of the Tropical Eastern Pacific. It has a free-living larva that is dispersed by marine currents. We analyzed the demographic (historic), genetic, and phylogeographic structure of P. pansa using a fragment of the cytochrome b gene (687 bp). Data were analyzed by analysis of molecular variance, nested clade analysis (NCA), and a mismatch distribution analysis under the expanding population hypothesis. A total of 219 organisms were collected from 16 localities along the Mexican Pacific coast and one in Costa Rica. We obtained a total of 92 haplotypes. Genetic differences among Mexican populations were low. The Clarión Island population was significantly different from 6 of the Mexican populations studied. This result was attributed to the fact that Clarión is an oceanic island and the currents veer offshore most of the year. Haplotype network and mismatch distribution analyses indicated that the Mexican populations are undergoing expansion. The NCA confirmed a contiguous range expansion of haplotypes and this result may be related to the time that larvae spend in marine currents and to the effect of natural barriers, such as gyres, in Central America and the Isthmus of Tehuantepec.  El caracol púrpura Plicopurpura pansa habita la zona intermareal a lo largo de la costa tropical del océano Pacífico. Tiene una larva de vida libre que es dispersada por las corrientes marinas. En este trabajo se analizó la estructura filogeográfica, genética y demográfica (histórica) de P. pansa utilizando un fragmento del citocromo b (687 pb). Los datos se analizaron mediante el análisis de varianza molecular, el análisis de clados anidados y una distribución de diferencias pareadas (mismatch), considerando una hipótesis de especie en expansión. En total se recolectaron 219 organismos de 16 localidades del Pacífico mexicano y una de Costa Rica. Obtuvimos 92 haplotipos. Las diferencias genéticas entre las poblaciones mexicanas fueron bajas. La población de isla Clarión difirió significativamente de 6 de las poblaciones mexicanas estudiadas. Este resultado fue atribuido al hecho de que la isla Clarión es oceánica y las corrientes que llevan a las larvas se desvían de la costa. La red de haplotipos y los análisis de distribución de diferencias pareadas indicaron que las poblaciones mexicanas están en un proceso de expansión. El análisis de clados anidados confirmó una expansión contigua de los haplotipos. Este resultado puede estar relacionado con el tiempo que pasan las larvas en las corrientes y con el efecto de las barreras naturales como giros en América Central y en el istmo de Tehuantepec. 2016-03-18 2021-06-03T03:55:28Z 2021-06-03T03:55:28Z info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion Peer-reviewed Article Artículo Arbitrado https://www.cienciasmarinas.com.mx/index.php/cmarinas/article/view/2576 10.7773/cm.v42i1.2576 https://hdl.handle.net/20.500.12930/7494 eng https://www.cienciasmarinas.com.mx/index.php/cmarinas/article/view/2576/1580 Copyright (c) 2016 Ciencias Marinas application/pdf Iniversidad Autónoma de Baja California Ciencias Marinas; Vol. 42 No. 1 (2016); 1-14 Ciencias Marinas; Vol. 42 Núm. 1 (2016); 1-14 2395-9053 0185-3880
institution Repositorio Institucional
collection DSpace
language eng
description The purple snail Plicopurpura pansa is a common member of the rocky intertidal community of the Tropical Eastern Pacific. It has a free-living larva that is dispersed by marine currents. We analyzed the demographic (historic), genetic, and phylogeographic structure of P. pansa using a fragment of the cytochrome b gene (687 bp). Data were analyzed by analysis of molecular variance, nested clade analysis (NCA), and a mismatch distribution analysis under the expanding population hypothesis. A total of 219 organisms were collected from 16 localities along the Mexican Pacific coast and one in Costa Rica. We obtained a total of 92 haplotypes. Genetic differences among Mexican populations were low. The Clarión Island population was significantly different from 6 of the Mexican populations studied. This result was attributed to the fact that Clarión is an oceanic island and the currents veer offshore most of the year. Haplotype network and mismatch distribution analyses indicated that the Mexican populations are undergoing expansion. The NCA confirmed a contiguous range expansion of haplotypes and this result may be related to the time that larvae spend in marine currents and to the effect of natural barriers, such as gyres, in Central America and the Isthmus of Tehuantepec. 
format info:eu-repo/semantics/article
author López-Chávez, Felipe J
Chassin-Noria, Omar
Ríos-Chávez, Patricia
Rocha-Ramírez, Víctor
Macip-Ríos, Rodrigo
Oyama, Ken
spellingShingle López-Chávez, Felipe J
Chassin-Noria, Omar
Ríos-Chávez, Patricia
Rocha-Ramírez, Víctor
Macip-Ríos, Rodrigo
Oyama, Ken
Phylogeography of the purple snail Plicopurpura pansa along the Mexican Pacific coast
author_facet López-Chávez, Felipe J
Chassin-Noria, Omar
Ríos-Chávez, Patricia
Rocha-Ramírez, Víctor
Macip-Ríos, Rodrigo
Oyama, Ken
author_sort López-Chávez, Felipe J
title Phylogeography of the purple snail Plicopurpura pansa along the Mexican Pacific coast
title_short Phylogeography of the purple snail Plicopurpura pansa along the Mexican Pacific coast
title_full Phylogeography of the purple snail Plicopurpura pansa along the Mexican Pacific coast
title_fullStr Phylogeography of the purple snail Plicopurpura pansa along the Mexican Pacific coast
title_full_unstemmed Phylogeography of the purple snail Plicopurpura pansa along the Mexican Pacific coast
title_sort phylogeography of the purple snail plicopurpura pansa along the mexican pacific coast
publisher Iniversidad Autónoma de Baja California
publishDate 2016
url https://www.cienciasmarinas.com.mx/index.php/cmarinas/article/view/2576
_version_ 1792610475674959872

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