Diversidad genética de dos poblaciones del caracol Strombus gigas (Gastropoda: Strombidae) en Yucatán, México, con microsatélite

Diversidad genética de dos poblaciones del caracol Strombus gigas (Gastropoda: Strombidae) en Yucatán, México, con microsatélite

The pink conch Strombus gigas is an important fisheries resource in the Caribbean region, including the Yucatán Peninsula. We analyzed the genetic diversity and genetic structure of two populations (Alacranes Reef and Chinchorro Bank) with the use of five microsatellite molecular markers. The result...

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Main Authors: Zamora-Bustillos, Roberto, Rodríguez-Canul, Rossanna, J. García de León, Francisco, Tello Cetina, Jorge
Format: Online
Language:spa
Published: Universidad de Costa Rica 2011
Online Access:https://revistas.ucr.ac.cr/index.php/rbt/article/view/3385
id RBT3385
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spelling RBT33852022-06-06T18:58:21Z Diversidad genética de dos poblaciones del caracol Strombus gigas(Gastropoda: Strombidae) en Yucatán, México, con microsatélite Diversidad genética de dos poblaciones del caracol Strombus gigas (Gastropoda: Strombidae) en Yucatán, México, con microsatélite Zamora-Bustillos, Roberto Rodríguez-Canul, Rossanna J. García de León, Francisco Tello Cetina, Jorge Strombus gigas pink conch microsatellite genetic diversity gene flow caracol rosado microsatélites diversidad genética flujo genético The pink conch Strombus gigas is an important fisheries resource in the Caribbean region, including the Yucatán Peninsula. We analyzed the genetic diversity and genetic structure of two populations (Alacranes Reef and Chinchorro Bank) with the use of five microsatellite molecular mark-ers. The results indicate that the two populations are in the same rank of genetic diversity (He), from 0.613 to 0.692. Significant deviation from H-WE was observed in the both populations due to deficit to heterozygotes, this was attributed to inbreeding as a consequence of over-fishing; nevertheless, other possible causes considered are mixing of individuals from two or more populations, and the existence of null alleles. Levels of genetic dif-ferentiation indicated the existence of a single homogenous population in the Yucatan Peninsula (FST de 0.003, p=0.49), which fits with highest levels of gene flow is significant (2.3 individuals) between both populations. Results from this study support the hypothesis that S. gigas is part of a single panmictic population in the Yucatan Peninsula; therefore, this fishery resource should be regulated the same way for both areas. The pink conch Strombus gigas is an important fisheries resource in the Caribbean region, including the Yucatán Peninsula. We analyzed the genetic diversity and genetic structure of two populations (Alacranes Reef and Chinchorro Bank) with the use of five microsatellite molecular markers. The results indicate that the two populations are in the same rank of genetic diversity (He), from 0.613 to 0.692. Significant deviation from H-WE was observed in the both populations due to deficit to heterozygotes, this was attributed to inbreeding as a consequence of over-fishing; nevertheless, other possible causes considered are mixing of individuals from two or more populations, and the existence of null alleles. Levels of genetic differentiation indicated the existence of a single homogenous population in the Yucatan Peninsula (FST de 0.003, p=0.49), which fits with highest levels of gene flow is significant (2.3 individuals) between both populations. Results from this study support the hypothesis that S. gigas is part of a single panmictic population in the Yucatan Peninsula; therefore, this fishery resource should be regulated the same way for both areas. Universidad de Costa Rica 2011-09-01 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion Article Text application/pdf https://revistas.ucr.ac.cr/index.php/rbt/article/view/3385 10.15517/rbt.v0i0.3385 Revista de Biología Tropical; Vol. 59 No. 3 (2011): Volume 59 – Regular number 3 – September 2011; 1127–1134 Revista de Biología Tropical; Vol. 59 Núm. 3 (2011): Volumen 59 – Número regular 3 – Setiembre 2011; 1127–1134 Revista Biología Tropical; Vol. 59 N.º 3 (2011): Volume 59 – Regular number 3 – September 2011; 1127–1134 2215-2075 0034-7744 10.15517/rbt.v0i0 spa https://revistas.ucr.ac.cr/index.php/rbt/article/view/3385/3289 Copyright (c) 2011 Revista de Biología Tropical http://creativecommons.org/licenses/by/4.0
institution Universidad de Costa Rica
collection Revista de Biología Tropical
language spa
format Online
author Zamora-Bustillos, Roberto
Rodríguez-Canul, Rossanna
J. García de León, Francisco
Tello Cetina, Jorge
spellingShingle Zamora-Bustillos, Roberto
Rodríguez-Canul, Rossanna
J. García de León, Francisco
Tello Cetina, Jorge
Diversidad genética de dos poblaciones del caracol Strombus gigas (Gastropoda: Strombidae) en Yucatán, México, con microsatélite
author_facet Zamora-Bustillos, Roberto
Rodríguez-Canul, Rossanna
J. García de León, Francisco
Tello Cetina, Jorge
author_sort Zamora-Bustillos, Roberto
description The pink conch Strombus gigas is an important fisheries resource in the Caribbean region, including the Yucatán Peninsula. We analyzed the genetic diversity and genetic structure of two populations (Alacranes Reef and Chinchorro Bank) with the use of five microsatellite molecular markers. The results indicate that the two populations are in the same rank of genetic diversity (He), from 0.613 to 0.692. Significant deviation from H-WE was observed in the both populations due to deficit to heterozygotes, this was attributed to inbreeding as a consequence of over-fishing; nevertheless, other possible causes considered are mixing of individuals from two or more populations, and the existence of null alleles. Levels of genetic differentiation indicated the existence of a single homogenous population in the Yucatan Peninsula (FST de 0.003, p=0.49), which fits with highest levels of gene flow is significant (2.3 individuals) between both populations. Results from this study support the hypothesis that S. gigas is part of a single panmictic population in the Yucatan Peninsula; therefore, this fishery resource should be regulated the same way for both areas.
title Diversidad genética de dos poblaciones del caracol Strombus gigas (Gastropoda: Strombidae) en Yucatán, México, con microsatélite
title_short Diversidad genética de dos poblaciones del caracol Strombus gigas (Gastropoda: Strombidae) en Yucatán, México, con microsatélite
title_full Diversidad genética de dos poblaciones del caracol Strombus gigas (Gastropoda: Strombidae) en Yucatán, México, con microsatélite
title_fullStr Diversidad genética de dos poblaciones del caracol Strombus gigas (Gastropoda: Strombidae) en Yucatán, México, con microsatélite
title_full_unstemmed Diversidad genética de dos poblaciones del caracol Strombus gigas (Gastropoda: Strombidae) en Yucatán, México, con microsatélite
title_sort diversidad genética de dos poblaciones del caracol strombus gigas (gastropoda: strombidae) en yucatán, méxico, con microsatélite
title_alt Diversidad genética de dos poblaciones del caracol Strombus gigas(Gastropoda: Strombidae) en Yucatán, México, con microsatélite
publisher Universidad de Costa Rica
publishDate 2011
url https://revistas.ucr.ac.cr/index.php/rbt/article/view/3385
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AT jgarciadeleonfrancisco diversidadgeneticadedospoblacionesdelcaracolstrombusgigasgastropodastrombidaeenyucatanmexicoconmicrosatelite
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