Genetic diversity and population structure of the mangrove crab (Ucides occidentalis) in Tumbes, Peru

Mangrove is one of the most threatened coastal ecosystems on earth. Its ecological functioning depends in part of activity of key species Ucides occidentalis. The crab stocks have been overfished in mangroves of Peru. The strong decline of the crab population (up 35.8% in 11 years) may make it neces...

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Autores principales: Ordinola, Z. A., Vieyra, E. G., Ramírez, B. E., Saavedra, K. Y.
Formato: Artículo revista
Lenguaje:Español
Publicado: Universidad Nacional del Nordeste 2020
Materias:
Cangrejo
variabilidad genética
manglar
gen COI
biodiversidad
Crab
genetic variability
mangrove
COI gene
biodiversity
Acceso en línea:https://revistas.unne.edu.ar/index.php/vet/article/view/4615
Aporte de:
Revistas UNNE - Universidad Nacional del Noroeste (UNNE) de Universidad Nacional del Nordeste
id I48-R154-article-4615
record_format ojs
spelling I48-R154-article-46152025-02-12T21:59:16Z Genetic diversity and population structure of the mangrove crab (Ucides occidentalis) in Tumbes, Peru Diversidad genética y estructura poblacional del cangrejo del manglar (Ucides occidentalis) en Tumbes, Perú Ordinola, Z. A. Vieyra, E. G. Ramírez, B. E. Saavedra, K. Y. Cangrejo variabilidad genética manglar gen COI biodiversidad Crab genetic variability mangrove COI gene biodiversity Mangrove is one of the most threatened coastal ecosystems on earth. Its ecological functioning depends in part of activity of key species Ucides occidentalis. The crab stocks have been overfished in mangroves of Peru. The strong decline of the crab population (up 35.8% in 11 years) may make it necessary to cultivate larvae of this crab to repopulate the mangroves. However, an adequate repopulation requires to know its genetic diversity and genetic population structure. Therefore, the present study aimed to determine these aspects of U. occidentalis in the mangroves of Tumbes, Peru. A total of 56 individuals of U. occidentalis were collected, of which we obtained 42 nucleotide sequences of the gene fragment COI. The results indicated a high level of genetic diversity (as assessed by the haplotypes number: 30, the most frequency of more frequent haplotype: 14.29% and haplotype diversity: 0.9721; nucleotide differences average: 4.396 and nucleotide diversity: 0.00810), and a low population genetic structure evaluated by AMOVA (genetic variability between populations: 4%). El manglar es uno de los ecosistemas costeros más deteriorado a nivel mundial. En el presente caso, su funcionamiento ecológico depende en parte de la actividad de la especie clave: Ucides occidentalis. Este cangrejo ha sido sobreexplotado en los manglares del Perú. La fuerte reducción de su población (hasta 35,8% en 11 años) puede hacer necesario cultivar larvas de este cangrejo para repoblar los manglares. Sin embargo un adecuado repoblamiento requiere conocer su diversidad genética y estructura genética poblacional. Es por ello que en esta investigación se propuso determinar estos aspectos de U. occidentalis en el manglar de Tumbes, Perú. Un total de 56 ejemplares de U. occidentalis fueron colectados, de los cuales se obtuvieron 42 secuencias nucleótidas de un fragmento del gen COI. Los resultados indicaron un alto nivel de diversidad genética (evaluada a través del número de haplotipos: 30, frecuencia del haplotipo más frecuente: 14,29%, diversidad de haplotipos: 0,9721; promedio de diferencias en nucleótidos: 4,396 y diversidad nucleótida: 0,00810), así como una baja estructura genética poblacional evaluada mediante AMOVA (variabilidad genética entre poblaciones: 4%). Universidad Nacional del Nordeste 2020-12-18 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion application/pdf https://revistas.unne.edu.ar/index.php/vet/article/view/4615 10.30972/vet.3114615 Revista Veterinaria; Vol. 31 Núm. 1 (2020); 33-37 1669-6840 1668-4834 spa https://revistas.unne.edu.ar/index.php/vet/article/view/4615/4314 Derechos de autor 2020 Z. A. Ordinola, E. G. Vieyra, B. E. Ramírez, K. Y. Saavedra https://creativecommons.org/licenses/by-nc/4.0
institution Universidad Nacional del Nordeste
institution_str I-48
repository_str R-154
container_title_str Revistas UNNE - Universidad Nacional del Noroeste (UNNE)
language Español
format Artículo revista
topic Cangrejo
variabilidad genética
manglar
gen COI
biodiversidad
Crab
genetic variability
mangrove
COI gene
biodiversity
spellingShingle Cangrejo
variabilidad genética
manglar
gen COI
biodiversidad
Crab
genetic variability
mangrove
COI gene
biodiversity
Ordinola, Z. A.
Vieyra, E. G.
Ramírez, B. E.
Saavedra, K. Y.
Genetic diversity and population structure of the mangrove crab (Ucides occidentalis) in Tumbes, Peru
topic_facet Cangrejo
variabilidad genética
manglar
gen COI
biodiversidad
Crab
genetic variability
mangrove
COI gene
biodiversity
author Ordinola, Z. A.
Vieyra, E. G.
Ramírez, B. E.
Saavedra, K. Y.
author_facet Ordinola, Z. A.
Vieyra, E. G.
Ramírez, B. E.
Saavedra, K. Y.
author_sort Ordinola, Z. A.
title Genetic diversity and population structure of the mangrove crab (Ucides occidentalis) in Tumbes, Peru
title_short Genetic diversity and population structure of the mangrove crab (Ucides occidentalis) in Tumbes, Peru
title_full Genetic diversity and population structure of the mangrove crab (Ucides occidentalis) in Tumbes, Peru
title_fullStr Genetic diversity and population structure of the mangrove crab (Ucides occidentalis) in Tumbes, Peru
title_full_unstemmed Genetic diversity and population structure of the mangrove crab (Ucides occidentalis) in Tumbes, Peru
title_sort genetic diversity and population structure of the mangrove crab (ucides occidentalis) in tumbes, peru
description Mangrove is one of the most threatened coastal ecosystems on earth. Its ecological functioning depends in part of activity of key species Ucides occidentalis. The crab stocks have been overfished in mangroves of Peru. The strong decline of the crab population (up 35.8% in 11 years) may make it necessary to cultivate larvae of this crab to repopulate the mangroves. However, an adequate repopulation requires to know its genetic diversity and genetic population structure. Therefore, the present study aimed to determine these aspects of U. occidentalis in the mangroves of Tumbes, Peru. A total of 56 individuals of U. occidentalis were collected, of which we obtained 42 nucleotide sequences of the gene fragment COI. The results indicated a high level of genetic diversity (as assessed by the haplotypes number: 30, the most frequency of more frequent haplotype: 14.29% and haplotype diversity: 0.9721; nucleotide differences average: 4.396 and nucleotide diversity: 0.00810), and a low population genetic structure evaluated by AMOVA (genetic variability between populations: 4%).
publisher Universidad Nacional del Nordeste
publishDate 2020
url https://revistas.unne.edu.ar/index.php/vet/article/view/4615
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first_indexed 2025-05-17T05:10:01Z
last_indexed 2025-05-17T05:10:01Z
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