Genetic variability and differentiation in cultured white shrimp Penaeus (Litopenaeus) vannamei with low and high growth

 To find a relationship between allozyme heterozygosity and body size in cultured white shrimp, Penaeus (Litopenaeus) vannamei, a sample was taken at the end of an experimental culture; 72 small organisms of 7.1 ± 1.35 g average weights, and 72 large organisms of 17.5 ± 1....

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Autores: Rivera-García, M, Grijalva-Chon, JM
Tipo de recurso: artículo
Estado:Versión publicada
Fecha de publicación:2005
País:México
Institución:UNIVERSIDAD AUTÓNOMA DE BAJA CALIFORNIA
Repositorio:Ciencias Marinas
Idioma:inglés
OAI Identifier:oai:cienciasmarinas.com.mx:article/70
Acceso en línea:https://www.cienciasmarinas.com.mx/index.php/cmarinas/article/view/70
Access Level:acceso abierto
Palabra clave:White shrimp
Penaeus vannamei
allozymes
genetic variability
growth
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spelling Genetic variability and differentiation in cultured white shrimp Penaeus (Litopenaeus) vannamei with low and high growthVariabilidad y diferenciación genética en camarón blanco Penaeus (Litopenaeus) vannamei de bajo y alto crecimientoRivera-García, MGrijalva-Chon, JMWhite shrimpPenaeus vannameiallozymesgenetic variabilitygrowth To find a relationship between allozyme heterozygosity and body size in cultured white shrimp, Penaeus (Litopenaeus) vannamei, a sample was taken at the end of an experimental culture; 72 small organisms of 7.1 ± 1.35 g average weights, and 72 large organisms of 17.5 ± 1.34 g average weights. Ten enzymatic systems were analyzed. Eighteen loci showed good resolution for genetic interpretation. Only EST-2*, EST-3*, EST-4*, EST-5*, and PGM* were polymorphic. Variability values (mean observed heterozygosity, mean number of alleles per locus, and polymorphism) for small shrimp were 0.029 ± 0.020, 1.5 ± 0.20, and 22%, whereas for large shrimp were 0.020 ± 0.010, 1.7 ± 0.20, and 28%. No significant difference was found in heterozygosity for both size-classes. All loci were out of Hardy-Weinberg equilibrium because of a heterozygote deficiency and high inbreeding values. EST-2* and PGM* showed differences in allelic frequencies among both size-classes, and an Fst value of 1.6% was recorded. Both size-classes have a different genetic population structure. Because of the poor information of the analyzed loci and to corroborate that EST-2* and PGM* are involved in growth, it would be necessary to follow the inheritance of those loci in successive generations.Con la finalidad de encontrar una relación entre la heterocigosis alozímica y el tamaño del camarón blanco Penaeus (Litopenaeus) vannamei cultivado, se tomó una muestra al final de un cultivo experimental. La muestra consistió de 72 organismos pequeños con un peso promedio de 7.1 ± 1.35 g y 72 organismos mayores con peso promedio de 17.5 ± 1.34 g. Se analizaron diez sistemas enzimáticos. Dieciocho loci mostraron buena resolución para una interpretación genética. Sólo EST-2*, EST-3*, EST-4*, EST-5* y PGM* fueron polimórficos. Los valores de variabilidad (heterocigosis media observada, promedio de alelos por locus y polimorfismo) para los camarones pequeños fueron de 0.029 ± 0.020, 1.5 ± 0.20 y 22%, mientras que para los mayores fueron de 0.020 ± 0.010, 1.7 ± 0.20 y 28%. No se encontraron diferencias significativas entre las heterocigosis de ambos tamaños de clase pero si tuvieron una diferente estructura genética poblacional. Todos los loci estuvieron fuera del equilibrio de Hardy-Weinberg debido a una deficiencia de heterocigotos y altos valores de endogamia. Se obtuvo un valor de Fst de 1.6% y los loci EST-2* y PGM* mostraron diferencias en las frecuencias alélicas entre ambos tamaños de clase.Iniversidad Autónoma de Baja California2005-03-06info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionPeer-reviewed Article Artículo Arbitradoapplication/pdfhttps://www.cienciasmarinas.com.mx/index.php/cmarinas/article/view/7010.7773/cm.v32i1.70Ciencias Marinas; Vol. 32 No. 1 (2006); 1-11Ciencias Marinas; Vol. 32 Núm. 1 (2006); 1-112395-90530185-3880reponame:Ciencias Marinasinstname:UNIVERSIDAD AUTÓNOMA DE BAJA CALIFORNIAinstacron:UABCenghttps://www.cienciasmarinas.com.mx/index.php/cmarinas/article/view/70/52info:eu-repo/semantics/openAccessoai:cienciasmarinas.com.mx:article/702024-08-22T17:01:28Z
dc.title.none.fl_str_mv Genetic variability and differentiation in cultured white shrimp Penaeus (Litopenaeus) vannamei with low and high growth
Variabilidad y diferenciación genética en camarón blanco Penaeus (Litopenaeus) vannamei de bajo y alto crecimiento
title Genetic variability and differentiation in cultured white shrimp Penaeus (Litopenaeus) vannamei with low and high growth
spellingShingle Genetic variability and differentiation in cultured white shrimp Penaeus (Litopenaeus) vannamei with low and high growth
Rivera-García, M
White shrimp
Penaeus vannamei
allozymes
genetic variability
growth
title_short Genetic variability and differentiation in cultured white shrimp Penaeus (Litopenaeus) vannamei with low and high growth
title_full Genetic variability and differentiation in cultured white shrimp Penaeus (Litopenaeus) vannamei with low and high growth
title_fullStr Genetic variability and differentiation in cultured white shrimp Penaeus (Litopenaeus) vannamei with low and high growth
title_full_unstemmed Genetic variability and differentiation in cultured white shrimp Penaeus (Litopenaeus) vannamei with low and high growth
title_sort Genetic variability and differentiation in cultured white shrimp Penaeus (Litopenaeus) vannamei with low and high growth
dc.creator.none.fl_str_mv Rivera-García, M
Grijalva-Chon, JM
author Rivera-García, M
author_facet Rivera-García, M
Grijalva-Chon, JM
author_role author
author2 Grijalva-Chon, JM
author2_role author
dc.subject.none.fl_str_mv White shrimp
Penaeus vannamei
allozymes
genetic variability
growth
topic White shrimp
Penaeus vannamei
allozymes
genetic variability
growth
description  To find a relationship between allozyme heterozygosity and body size in cultured white shrimp, Penaeus (Litopenaeus) vannamei, a sample was taken at the end of an experimental culture; 72 small organisms of 7.1 ± 1.35 g average weights, and 72 large organisms of 17.5 ± 1.34 g average weights. Ten enzymatic systems were analyzed. Eighteen loci showed good resolution for genetic interpretation. Only EST-2*, EST-3*, EST-4*, EST-5*, and PGM* were polymorphic. Variability values (mean observed heterozygosity, mean number of alleles per locus, and polymorphism) for small shrimp were 0.029 ± 0.020, 1.5 ± 0.20, and 22%, whereas for large shrimp were 0.020 ± 0.010, 1.7 ± 0.20, and 28%. No significant difference was found in heterozygosity for both size-classes. All loci were out of Hardy-Weinberg equilibrium because of a heterozygote deficiency and high inbreeding values. EST-2* and PGM* showed differences in allelic frequencies among both size-classes, and an Fst value of 1.6% was recorded. Both size-classes have a different genetic population structure. Because of the poor information of the analyzed loci and to corroborate that EST-2* and PGM* are involved in growth, it would be necessary to follow the inheritance of those loci in successive generations.
publishDate 2005
dc.date.none.fl_str_mv 2005-03-06
dc.type.none.fl_str_mv info:eu-repo/semantics/article
info:eu-repo/semantics/publishedVersion
Peer-reviewed Article
Artículo Arbitrado
format article
status_str publishedVersion
dc.identifier.none.fl_str_mv https://www.cienciasmarinas.com.mx/index.php/cmarinas/article/view/70
10.7773/cm.v32i1.70
url https://www.cienciasmarinas.com.mx/index.php/cmarinas/article/view/70
identifier_str_mv 10.7773/cm.v32i1.70
dc.language.none.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv https://www.cienciasmarinas.com.mx/index.php/cmarinas/article/view/70/52
dc.rights.none.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv application/pdf
dc.publisher.none.fl_str_mv Iniversidad Autónoma de Baja California
publisher.none.fl_str_mv Iniversidad Autónoma de Baja California
dc.source.none.fl_str_mv Ciencias Marinas; Vol. 32 No. 1 (2006); 1-11
Ciencias Marinas; Vol. 32 Núm. 1 (2006); 1-11
2395-9053
0185-3880
reponame:Ciencias Marinas
instname:UNIVERSIDAD AUTÓNOMA DE BAJA CALIFORNIA
instacron:UABC
instname_str UNIVERSIDAD AUTÓNOMA DE BAJA CALIFORNIA
instacron_str UABC
institution UABC
reponame_str Ciencias Marinas
collection Ciencias Marinas
repository.name.fl_str_mv
repository.mail.fl_str_mv
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