Genetic diversity of the blue land crab Cardisoma guanhumi (Latreille 1825) in the Alvarado Lagoon System in Veracruz, gulf coast of Mexico

ABSTRACT In the Alvarado Lagoon System (ALS) in south-central Veracruz on Mexico's gulf coast, the blue land crab, Cardisoma guanhumi, a semi-terrestrial crustacean species, represents an important fishery resource, but one that is subject to overexploitation and habitat destruction. Identifyin...

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Autores principales:	Rendón-Hernández,José Francisco, Pérez-Rostro,Carlos Iván, González-Trujillo,Ricardo, Arcos-Ortega,Guadalupe Fabiola, Jiménez-Badillo,María de Lourdes, Galindo-Cortes,Gabriela
Lenguaje:	English
Publicado:	Pontificia Universidad Católica de Valparaíso. Facultad de Recursos Naturales. Escuela de Ciencias del Mar 2021
Materias:	Cardisoma guanhumi land crab genetic diversity COI D-loop region mtDNA Alvarado Lagoon System Mexico
Acceso en línea:	http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0718-560X2021000100136
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spelling	oai:scielo:S0718-560X20210001001362021-03-22Genetic diversity of the blue land crab Cardisoma guanhumi (Latreille 1825) in the Alvarado Lagoon System in Veracruz, gulf coast of MexicoRendón-Hernández,José FranciscoPérez-Rostro,Carlos IvánGonzález-Trujillo,RicardoArcos-Ortega,Guadalupe FabiolaJiménez-Badillo,María de LourdesGalindo-Cortes,Gabriela Cardisoma guanhumi land crab genetic diversity COI D-loop region mtDNA Alvarado Lagoon System Mexico ABSTRACT In the Alvarado Lagoon System (ALS) in south-central Veracruz on Mexico's gulf coast, the blue land crab, Cardisoma guanhumi, a semi-terrestrial crustacean species, represents an important fishery resource, but one that is subject to overexploitation and habitat destruction. Identifying genetic diversity and the genetic unit are required to establish efficient conservation strategies. The present study's goal was to assess the genetic structure and degree of genetic diversity of C. guanhumi populations along the ALS. A fragment of the D-loop region of the mtDNA (750 bp) and a partial sequence of the COI gene (580 pb) was sequenced for 120 specimens collected at four sites in the ALS. Genetic diversity indices were estimated for each marker. The study sites’ gene flow was estimated, as was the effective population size and the mutational rate for each locality. A haplotype network was built to estimate the gene genealogies of the populations. A Tajima's neutrality test, Fu tests, and mismatch analysis were performed to detect demographic expansion. Results show that this C. guanhumi population has high genetic diversity with a large gene flow among the localities studied and expanded during the recent evolutionary past. All haplotypes from both markers are novel for the species, according to the NCBI GenBank. The high genetic diversity and genetic connectivity among sites suggests that the size of blue crab populations in the ALS has not been drastically affected by past exploitation. Finally, management strategies are proposed to protect the species.info:eu-repo/semantics/openAccessPontificia Universidad Católica de Valparaíso. Facultad de Recursos Naturales. Escuela de Ciencias del MarLatin american journal of aquatic research v.49 n.1 20212021-03-01text/htmlhttp://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0718-560X2021000100136en10.3856/vol49-issue1-fulltext-2478
institution	Scielo Chile
collection	Scielo Chile
language	English
topic	Cardisoma guanhumi land crab genetic diversity COI D-loop region mtDNA Alvarado Lagoon System Mexico
spellingShingle	Cardisoma guanhumi land crab genetic diversity COI D-loop region mtDNA Alvarado Lagoon System Mexico Rendón-Hernández,José Francisco Pérez-Rostro,Carlos Iván González-Trujillo,Ricardo Arcos-Ortega,Guadalupe Fabiola Jiménez-Badillo,María de Lourdes Galindo-Cortes,Gabriela Genetic diversity of the blue land crab Cardisoma guanhumi (Latreille 1825) in the Alvarado Lagoon System in Veracruz, gulf coast of Mexico
description	ABSTRACT In the Alvarado Lagoon System (ALS) in south-central Veracruz on Mexico's gulf coast, the blue land crab, Cardisoma guanhumi, a semi-terrestrial crustacean species, represents an important fishery resource, but one that is subject to overexploitation and habitat destruction. Identifying genetic diversity and the genetic unit are required to establish efficient conservation strategies. The present study's goal was to assess the genetic structure and degree of genetic diversity of C. guanhumi populations along the ALS. A fragment of the D-loop region of the mtDNA (750 bp) and a partial sequence of the COI gene (580 pb) was sequenced for 120 specimens collected at four sites in the ALS. Genetic diversity indices were estimated for each marker. The study sites’ gene flow was estimated, as was the effective population size and the mutational rate for each locality. A haplotype network was built to estimate the gene genealogies of the populations. A Tajima's neutrality test, Fu tests, and mismatch analysis were performed to detect demographic expansion. Results show that this C. guanhumi population has high genetic diversity with a large gene flow among the localities studied and expanded during the recent evolutionary past. All haplotypes from both markers are novel for the species, according to the NCBI GenBank. The high genetic diversity and genetic connectivity among sites suggests that the size of blue crab populations in the ALS has not been drastically affected by past exploitation. Finally, management strategies are proposed to protect the species.
author	Rendón-Hernández,José Francisco Pérez-Rostro,Carlos Iván González-Trujillo,Ricardo Arcos-Ortega,Guadalupe Fabiola Jiménez-Badillo,María de Lourdes Galindo-Cortes,Gabriela
author_facet	Rendón-Hernández,José Francisco Pérez-Rostro,Carlos Iván González-Trujillo,Ricardo Arcos-Ortega,Guadalupe Fabiola Jiménez-Badillo,María de Lourdes Galindo-Cortes,Gabriela
author_sort	Rendón-Hernández,José Francisco
title	Genetic diversity of the blue land crab Cardisoma guanhumi (Latreille 1825) in the Alvarado Lagoon System in Veracruz, gulf coast of Mexico
title_short	Genetic diversity of the blue land crab Cardisoma guanhumi (Latreille 1825) in the Alvarado Lagoon System in Veracruz, gulf coast of Mexico
title_full	Genetic diversity of the blue land crab Cardisoma guanhumi (Latreille 1825) in the Alvarado Lagoon System in Veracruz, gulf coast of Mexico
title_fullStr	Genetic diversity of the blue land crab Cardisoma guanhumi (Latreille 1825) in the Alvarado Lagoon System in Veracruz, gulf coast of Mexico
title_full_unstemmed	Genetic diversity of the blue land crab Cardisoma guanhumi (Latreille 1825) in the Alvarado Lagoon System in Veracruz, gulf coast of Mexico
title_sort	genetic diversity of the blue land crab cardisoma guanhumi (latreille 1825) in the alvarado lagoon system in veracruz, gulf coast of mexico
publisher	Pontificia Universidad Católica de Valparaíso. Facultad de Recursos Naturales. Escuela de Ciencias del Mar
publishDate	2021
url	http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0718-560X2021000100136
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Genetic diversity of the blue land crab Cardisoma guanhumi (Latreille 1825) in the Alvarado Lagoon System in Veracruz, gulf coast of Mexico

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