Genetic and Morphometric Variability in Caiman latirostris (Broad-Snouted Caiman), Reptilia, Alligatoridae
- Autores
- Amavet, Patricia Susana; Vilardi, Juan Cesar; Rosso, Esteban; Saidman, Beatriz Ofelia
- Año de publicación
- 2009
- Idioma
- inglés
- Tipo de recurso
- artículo
- Estado
- versión publicada
- Descripción
- Caiman latirostris (broad-snouted caiman) is a crocodilian species from Argentina subject of management plans. The goal of this study was estimating the distribution of genetic variability using RAPD markers and quantitative traits in wild populations of C. latirostris from Santa Fe province, Argentina. We sampled animals from four populations to obtain DNA and morphometric measurements. Eight RAPD primers were used and PCR products were analyzed on 4% polyacrylamide gels stained with silver nitrate. Eleven allometric measurements were obtained in animals within 48 hr after birth. We were able to reveal a relatively high number of variable markers in the studied populations. Our estimates of polymorphism and heterozygosity are higher than recorded values in other crocodilians using isozymes, the studied populations showed low levels of gene flow and some population subdivision. The study of quantitative traits conducted by nested analysis of variance and principal component analysis indicated higher levels of variance among nests within populations than among populations. We found that some head measurements have the highest contribution to morphological differences among populations; this fact could support the role of these traits in reproductive or feeding behavior. Estimated genetic differentiation value (FST) among populations was higher than quantitative trait differentiation value (QST), suggesting a higher contribution of neutral than adaptive loci to the genetic differentiation among populations. Quantitative traits are probably more related with fitness and the differentiation among populations remained relatively lower. The high heritability estimated for some traits indicates great potential to improve them in management plans.
Fil: Amavet, Patricia Susana. Universidad Nacional del Litoral. Facultad de Humanidades y Ciencias; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina
Fil: Vilardi, Juan Cesar. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina
Fil: Rosso, Esteban. Universidad Nacional del Litoral. Facultad de Humanidades y Ciencias; Argentina
Fil: Saidman, Beatriz Ofelia. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina - Materia
-
CAIMAN LATIROSTRIS
GENETIC VARIABILITY
MORPHOMETRIC MEASURES
POPULATION GENETICS - Nivel de accesibilidad
- acceso abierto
- Condiciones de uso
- https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
- Repositorio
- Institución
- Consejo Nacional de Investigaciones Científicas y Técnicas
- OAI Identificador
- oai:ri.conicet.gov.ar:11336/98561
Ver los metadatos del registro completo
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Genetic and Morphometric Variability in Caiman latirostris (Broad-Snouted Caiman), Reptilia, AlligatoridaeAmavet, Patricia SusanaVilardi, Juan CesarRosso, EstebanSaidman, Beatriz OfeliaCAIMAN LATIROSTRISGENETIC VARIABILITYMORPHOMETRIC MEASURESPOPULATION GENETICShttps://purl.org/becyt/ford/1.6https://purl.org/becyt/ford/1Caiman latirostris (broad-snouted caiman) is a crocodilian species from Argentina subject of management plans. The goal of this study was estimating the distribution of genetic variability using RAPD markers and quantitative traits in wild populations of C. latirostris from Santa Fe province, Argentina. We sampled animals from four populations to obtain DNA and morphometric measurements. Eight RAPD primers were used and PCR products were analyzed on 4% polyacrylamide gels stained with silver nitrate. Eleven allometric measurements were obtained in animals within 48 hr after birth. We were able to reveal a relatively high number of variable markers in the studied populations. Our estimates of polymorphism and heterozygosity are higher than recorded values in other crocodilians using isozymes, the studied populations showed low levels of gene flow and some population subdivision. The study of quantitative traits conducted by nested analysis of variance and principal component analysis indicated higher levels of variance among nests within populations than among populations. We found that some head measurements have the highest contribution to morphological differences among populations; this fact could support the role of these traits in reproductive or feeding behavior. Estimated genetic differentiation value (FST) among populations was higher than quantitative trait differentiation value (QST), suggesting a higher contribution of neutral than adaptive loci to the genetic differentiation among populations. Quantitative traits are probably more related with fitness and the differentiation among populations remained relatively lower. The high heritability estimated for some traits indicates great potential to improve them in management plans.Fil: Amavet, Patricia Susana. Universidad Nacional del Litoral. Facultad de Humanidades y Ciencias; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; ArgentinaFil: Vilardi, Juan Cesar. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; ArgentinaFil: Rosso, Esteban. Universidad Nacional del Litoral. Facultad de Humanidades y Ciencias; ArgentinaFil: Saidman, Beatriz Ofelia. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; ArgentinaWiley-liss, Div John Wiley & Sons Inc2009-04info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfapplication/pdfapplication/pdfapplication/pdfhttp://hdl.handle.net/11336/98561Amavet, Patricia Susana; Vilardi, Juan Cesar; Rosso, Esteban; Saidman, Beatriz Ofelia; Genetic and Morphometric Variability in Caiman latirostris (Broad-Snouted Caiman), Reptilia, Alligatoridae; Wiley-liss, Div John Wiley & Sons Inc; Journal of Experimental Zoology Part A: Ecological Genetics and Physiology; 311; 4; 4-2009; 258-2690022-104XCONICET DigitalCONICETenginfo:eu-repo/semantics/altIdentifier/url/https://onlinelibrary.wiley.com/doi/abs/10.1002/jez.523info:eu-repo/semantics/altIdentifier/doi/10.1002/jez.523info:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by-nc-sa/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2025-09-03T10:01:33Zoai:ri.conicet.gov.ar:11336/98561instacron:CONICETInstitucionalhttp://ri.conicet.gov.ar/Organismo científico-tecnológicoNo correspondehttp://ri.conicet.gov.ar/oai/requestdasensio@conicet.gov.ar; lcarlino@conicet.gov.arArgentinaNo correspondeNo correspondeNo correspondeopendoar:34982025-09-03 10:01:33.761CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse |
dc.title.none.fl_str_mv |
Genetic and Morphometric Variability in Caiman latirostris (Broad-Snouted Caiman), Reptilia, Alligatoridae |
title |
Genetic and Morphometric Variability in Caiman latirostris (Broad-Snouted Caiman), Reptilia, Alligatoridae |
spellingShingle |
Genetic and Morphometric Variability in Caiman latirostris (Broad-Snouted Caiman), Reptilia, Alligatoridae Amavet, Patricia Susana CAIMAN LATIROSTRIS GENETIC VARIABILITY MORPHOMETRIC MEASURES POPULATION GENETICS |
title_short |
Genetic and Morphometric Variability in Caiman latirostris (Broad-Snouted Caiman), Reptilia, Alligatoridae |
title_full |
Genetic and Morphometric Variability in Caiman latirostris (Broad-Snouted Caiman), Reptilia, Alligatoridae |
title_fullStr |
Genetic and Morphometric Variability in Caiman latirostris (Broad-Snouted Caiman), Reptilia, Alligatoridae |
title_full_unstemmed |
Genetic and Morphometric Variability in Caiman latirostris (Broad-Snouted Caiman), Reptilia, Alligatoridae |
title_sort |
Genetic and Morphometric Variability in Caiman latirostris (Broad-Snouted Caiman), Reptilia, Alligatoridae |
dc.creator.none.fl_str_mv |
Amavet, Patricia Susana Vilardi, Juan Cesar Rosso, Esteban Saidman, Beatriz Ofelia |
author |
Amavet, Patricia Susana |
author_facet |
Amavet, Patricia Susana Vilardi, Juan Cesar Rosso, Esteban Saidman, Beatriz Ofelia |
author_role |
author |
author2 |
Vilardi, Juan Cesar Rosso, Esteban Saidman, Beatriz Ofelia |
author2_role |
author author author |
dc.subject.none.fl_str_mv |
CAIMAN LATIROSTRIS GENETIC VARIABILITY MORPHOMETRIC MEASURES POPULATION GENETICS |
topic |
CAIMAN LATIROSTRIS GENETIC VARIABILITY MORPHOMETRIC MEASURES POPULATION GENETICS |
purl_subject.fl_str_mv |
https://purl.org/becyt/ford/1.6 https://purl.org/becyt/ford/1 |
dc.description.none.fl_txt_mv |
Caiman latirostris (broad-snouted caiman) is a crocodilian species from Argentina subject of management plans. The goal of this study was estimating the distribution of genetic variability using RAPD markers and quantitative traits in wild populations of C. latirostris from Santa Fe province, Argentina. We sampled animals from four populations to obtain DNA and morphometric measurements. Eight RAPD primers were used and PCR products were analyzed on 4% polyacrylamide gels stained with silver nitrate. Eleven allometric measurements were obtained in animals within 48 hr after birth. We were able to reveal a relatively high number of variable markers in the studied populations. Our estimates of polymorphism and heterozygosity are higher than recorded values in other crocodilians using isozymes, the studied populations showed low levels of gene flow and some population subdivision. The study of quantitative traits conducted by nested analysis of variance and principal component analysis indicated higher levels of variance among nests within populations than among populations. We found that some head measurements have the highest contribution to morphological differences among populations; this fact could support the role of these traits in reproductive or feeding behavior. Estimated genetic differentiation value (FST) among populations was higher than quantitative trait differentiation value (QST), suggesting a higher contribution of neutral than adaptive loci to the genetic differentiation among populations. Quantitative traits are probably more related with fitness and the differentiation among populations remained relatively lower. The high heritability estimated for some traits indicates great potential to improve them in management plans. Fil: Amavet, Patricia Susana. Universidad Nacional del Litoral. Facultad de Humanidades y Ciencias; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina Fil: Vilardi, Juan Cesar. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina Fil: Rosso, Esteban. Universidad Nacional del Litoral. Facultad de Humanidades y Ciencias; Argentina Fil: Saidman, Beatriz Ofelia. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina |
description |
Caiman latirostris (broad-snouted caiman) is a crocodilian species from Argentina subject of management plans. The goal of this study was estimating the distribution of genetic variability using RAPD markers and quantitative traits in wild populations of C. latirostris from Santa Fe province, Argentina. We sampled animals from four populations to obtain DNA and morphometric measurements. Eight RAPD primers were used and PCR products were analyzed on 4% polyacrylamide gels stained with silver nitrate. Eleven allometric measurements were obtained in animals within 48 hr after birth. We were able to reveal a relatively high number of variable markers in the studied populations. Our estimates of polymorphism and heterozygosity are higher than recorded values in other crocodilians using isozymes, the studied populations showed low levels of gene flow and some population subdivision. The study of quantitative traits conducted by nested analysis of variance and principal component analysis indicated higher levels of variance among nests within populations than among populations. We found that some head measurements have the highest contribution to morphological differences among populations; this fact could support the role of these traits in reproductive or feeding behavior. Estimated genetic differentiation value (FST) among populations was higher than quantitative trait differentiation value (QST), suggesting a higher contribution of neutral than adaptive loci to the genetic differentiation among populations. Quantitative traits are probably more related with fitness and the differentiation among populations remained relatively lower. The high heritability estimated for some traits indicates great potential to improve them in management plans. |
publishDate |
2009 |
dc.date.none.fl_str_mv |
2009-04 |
dc.type.none.fl_str_mv |
info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion http://purl.org/coar/resource_type/c_6501 info:ar-repo/semantics/articulo |
format |
article |
status_str |
publishedVersion |
dc.identifier.none.fl_str_mv |
http://hdl.handle.net/11336/98561 Amavet, Patricia Susana; Vilardi, Juan Cesar; Rosso, Esteban; Saidman, Beatriz Ofelia; Genetic and Morphometric Variability in Caiman latirostris (Broad-Snouted Caiman), Reptilia, Alligatoridae; Wiley-liss, Div John Wiley & Sons Inc; Journal of Experimental Zoology Part A: Ecological Genetics and Physiology; 311; 4; 4-2009; 258-269 0022-104X CONICET Digital CONICET |
url |
http://hdl.handle.net/11336/98561 |
identifier_str_mv |
Amavet, Patricia Susana; Vilardi, Juan Cesar; Rosso, Esteban; Saidman, Beatriz Ofelia; Genetic and Morphometric Variability in Caiman latirostris (Broad-Snouted Caiman), Reptilia, Alligatoridae; Wiley-liss, Div John Wiley & Sons Inc; Journal of Experimental Zoology Part A: Ecological Genetics and Physiology; 311; 4; 4-2009; 258-269 0022-104X CONICET Digital CONICET |
dc.language.none.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
info:eu-repo/semantics/altIdentifier/url/https://onlinelibrary.wiley.com/doi/abs/10.1002/jez.523 info:eu-repo/semantics/altIdentifier/doi/10.1002/jez.523 |
dc.rights.none.fl_str_mv |
info:eu-repo/semantics/openAccess https://creativecommons.org/licenses/by-nc-sa/2.5/ar/ |
eu_rights_str_mv |
openAccess |
rights_invalid_str_mv |
https://creativecommons.org/licenses/by-nc-sa/2.5/ar/ |
dc.format.none.fl_str_mv |
application/pdf application/pdf application/pdf application/pdf |
dc.publisher.none.fl_str_mv |
Wiley-liss, Div John Wiley & Sons Inc |
publisher.none.fl_str_mv |
Wiley-liss, Div John Wiley & Sons Inc |
dc.source.none.fl_str_mv |
reponame:CONICET Digital (CONICET) instname:Consejo Nacional de Investigaciones Científicas y Técnicas |
reponame_str |
CONICET Digital (CONICET) |
collection |
CONICET Digital (CONICET) |
instname_str |
Consejo Nacional de Investigaciones Científicas y Técnicas |
repository.name.fl_str_mv |
CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicas |
repository.mail.fl_str_mv |
dasensio@conicet.gov.ar; lcarlino@conicet.gov.ar |
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1842269704188592128 |
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13.13397 |