A phylogenetic analysis of lizards of the Liolaemus chiliensis group (lguania Tropiduridae)

Autores
Lobo Gaviola, Fernando Jose
Año de publicación
2001
Idioma
inglés
Tipo de recurso
artículo
Estado
versión publicada
Descripción
The lizard genus Liolaemus includes over 160 species of which almost h lf are in the chiliensis group. Although some researchers have attempted to define smaller species groups within this large clade, the relationships among the taxa within the group as a whole remain enigmatic. The objectives of this study were to (1) identify characters that will be useful for present and future phylogenetic studies of this group, and (2) generate preliminary phylogenetic hypotheses for taxa within this large clade of lizards. I examined more than 800 specimens of 73 taxa belonging to the chiliensis group from which I identified 55 phylogenetically informative morphological characters. Additional characters (6) were derived from published and unpublished data on chromosomes, life history, and ecology. Four species considered basal for the genus were taken as outgoups. A tree-building program (PAUP 4.0b2) recovered three trees of length 1 1 . 516 (Retention index: 0.59). Differences found among these topologies were restricted to the relationships of species of the elongatus group, in which monophyly was recovered in only one tree . . Results from PAUP's analysis support the monophyly of several previously proposed species groups: alticolor, altissimus, gravenhorstii, hellmichi, kriegi, leopardinus, monlicola, nigromaculatus, nigroviridis, pielus and tenuis. Interestingly, most of the groups indicated above are endemic to areas that have recently been described as areas of high endemism for southern South America.
Fil: Lobo Gaviola, Fernando Jose. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina. Universidad Nacional de Salta. Facultad de Ciencias Naturales. Cátedra de Anatomia Comparada; Argentina
Materia
Phylogeny
Cladistics
Iguanids
South American lizards
Nivel de accesibilidad
acceso abierto
Condiciones de uso
https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
Repositorio
CONICET Digital (CONICET)
Institución
Consejo Nacional de Investigaciones Científicas y Técnicas
OAI Identificador
oai:ri.conicet.gov.ar:11336/54988

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network_name_str CONICET Digital (CONICET)
spelling A phylogenetic analysis of lizards of the Liolaemus chiliensis group (lguania Tropiduridae)Lobo Gaviola, Fernando JosePhylogenyCladisticsIguanidsSouth American lizardshttps://purl.org/becyt/ford/1.6https://purl.org/becyt/ford/1The lizard genus Liolaemus includes over 160 species of which almost h lf are in the chiliensis group. Although some researchers have attempted to define smaller species groups within this large clade, the relationships among the taxa within the group as a whole remain enigmatic. The objectives of this study were to (1) identify characters that will be useful for present and future phylogenetic studies of this group, and (2) generate preliminary phylogenetic hypotheses for taxa within this large clade of lizards. I examined more than 800 specimens of 73 taxa belonging to the chiliensis group from which I identified 55 phylogenetically informative morphological characters. Additional characters (6) were derived from published and unpublished data on chromosomes, life history, and ecology. Four species considered basal for the genus were taken as outgoups. A tree-building program (PAUP 4.0b2) recovered three trees of length 1 1 . 516 (Retention index: 0.59). Differences found among these topologies were restricted to the relationships of species of the elongatus group, in which monophyly was recovered in only one tree . . Results from PAUP's analysis support the monophyly of several previously proposed species groups: alticolor, altissimus, gravenhorstii, hellmichi, kriegi, leopardinus, monlicola, nigromaculatus, nigroviridis, pielus and tenuis. Interestingly, most of the groups indicated above are endemic to areas that have recently been described as areas of high endemism for southern South America.Fil: Lobo Gaviola, Fernando Jose. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina. Universidad Nacional de Salta. Facultad de Ciencias Naturales. Cátedra de Anatomia Comparada; ArgentinaBritish Herpetological Society2001-12info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfapplication/pdfhttp://hdl.handle.net/11336/54988Lobo Gaviola, Fernando Jose; A phylogenetic analysis of lizards of the Liolaemus chiliensis group (lguania Tropiduridae); British Herpetological Society; Herpetological Journal; 4; 12-2001; 137-1500268-0130CONICET DigitalCONICETenginfo:eu-repo/semantics/altIdentifier/url/https://www.thebhs.org/publications/the-herpetological-journal/volume-11-number-4-october-2001/1654-02-a-phylogenetic-analysis-of-lizards-of-the-liolaemus-chiliensis-group-lguania-tropiduridae/fileinfo:eu-repo/semantics/altIdentifier/url/https://www.thebhs.org/publications/the-herpetological-journal/volume-11-number-4-october-2001/1654-02-a-phylogenetic-analysis-of-lizards-of-the-liolaemus-chiliensis-group-lguania-tropiduridaeinfo:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by-nc-sa/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2025-09-29T10:42:43Zoai:ri.conicet.gov.ar:11336/54988instacron: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:34982025-09-29 10:42:43.537CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse
dc.title.none.fl_str_mv A phylogenetic analysis of lizards of the Liolaemus chiliensis group (lguania Tropiduridae)
title A phylogenetic analysis of lizards of the Liolaemus chiliensis group (lguania Tropiduridae)
spellingShingle A phylogenetic analysis of lizards of the Liolaemus chiliensis group (lguania Tropiduridae)
Lobo Gaviola, Fernando Jose
Phylogeny
Cladistics
Iguanids
South American lizards
title_short A phylogenetic analysis of lizards of the Liolaemus chiliensis group (lguania Tropiduridae)
title_full A phylogenetic analysis of lizards of the Liolaemus chiliensis group (lguania Tropiduridae)
title_fullStr A phylogenetic analysis of lizards of the Liolaemus chiliensis group (lguania Tropiduridae)
title_full_unstemmed A phylogenetic analysis of lizards of the Liolaemus chiliensis group (lguania Tropiduridae)
title_sort A phylogenetic analysis of lizards of the Liolaemus chiliensis group (lguania Tropiduridae)
dc.creator.none.fl_str_mv Lobo Gaviola, Fernando Jose
author Lobo Gaviola, Fernando Jose
author_facet Lobo Gaviola, Fernando Jose
author_role author
dc.subject.none.fl_str_mv Phylogeny
Cladistics
Iguanids
South American lizards
topic Phylogeny
Cladistics
Iguanids
South American lizards
purl_subject.fl_str_mv https://purl.org/becyt/ford/1.6
https://purl.org/becyt/ford/1
dc.description.none.fl_txt_mv The lizard genus Liolaemus includes over 160 species of which almost h lf are in the chiliensis group. Although some researchers have attempted to define smaller species groups within this large clade, the relationships among the taxa within the group as a whole remain enigmatic. The objectives of this study were to (1) identify characters that will be useful for present and future phylogenetic studies of this group, and (2) generate preliminary phylogenetic hypotheses for taxa within this large clade of lizards. I examined more than 800 specimens of 73 taxa belonging to the chiliensis group from which I identified 55 phylogenetically informative morphological characters. Additional characters (6) were derived from published and unpublished data on chromosomes, life history, and ecology. Four species considered basal for the genus were taken as outgoups. A tree-building program (PAUP 4.0b2) recovered three trees of length 1 1 . 516 (Retention index: 0.59). Differences found among these topologies were restricted to the relationships of species of the elongatus group, in which monophyly was recovered in only one tree . . Results from PAUP's analysis support the monophyly of several previously proposed species groups: alticolor, altissimus, gravenhorstii, hellmichi, kriegi, leopardinus, monlicola, nigromaculatus, nigroviridis, pielus and tenuis. Interestingly, most of the groups indicated above are endemic to areas that have recently been described as areas of high endemism for southern South America.
Fil: Lobo Gaviola, Fernando Jose. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina. Universidad Nacional de Salta. Facultad de Ciencias Naturales. Cátedra de Anatomia Comparada; Argentina
description The lizard genus Liolaemus includes over 160 species of which almost h lf are in the chiliensis group. Although some researchers have attempted to define smaller species groups within this large clade, the relationships among the taxa within the group as a whole remain enigmatic. The objectives of this study were to (1) identify characters that will be useful for present and future phylogenetic studies of this group, and (2) generate preliminary phylogenetic hypotheses for taxa within this large clade of lizards. I examined more than 800 specimens of 73 taxa belonging to the chiliensis group from which I identified 55 phylogenetically informative morphological characters. Additional characters (6) were derived from published and unpublished data on chromosomes, life history, and ecology. Four species considered basal for the genus were taken as outgoups. A tree-building program (PAUP 4.0b2) recovered three trees of length 1 1 . 516 (Retention index: 0.59). Differences found among these topologies were restricted to the relationships of species of the elongatus group, in which monophyly was recovered in only one tree . . Results from PAUP's analysis support the monophyly of several previously proposed species groups: alticolor, altissimus, gravenhorstii, hellmichi, kriegi, leopardinus, monlicola, nigromaculatus, nigroviridis, pielus and tenuis. Interestingly, most of the groups indicated above are endemic to areas that have recently been described as areas of high endemism for southern South America.
publishDate 2001
dc.date.none.fl_str_mv 2001-12
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/11336/54988
Lobo Gaviola, Fernando Jose; A phylogenetic analysis of lizards of the Liolaemus chiliensis group (lguania Tropiduridae); British Herpetological Society; Herpetological Journal; 4; 12-2001; 137-150
0268-0130
CONICET Digital
CONICET
url http://hdl.handle.net/11336/54988
identifier_str_mv Lobo Gaviola, Fernando Jose; A phylogenetic analysis of lizards of the Liolaemus chiliensis group (lguania Tropiduridae); British Herpetological Society; Herpetological Journal; 4; 12-2001; 137-150
0268-0130
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://www.thebhs.org/publications/the-herpetological-journal/volume-11-number-4-october-2001/1654-02-a-phylogenetic-analysis-of-lizards-of-the-liolaemus-chiliensis-group-lguania-tropiduridae/file
info:eu-repo/semantics/altIdentifier/url/https://www.thebhs.org/publications/the-herpetological-journal/volume-11-number-4-october-2001/1654-02-a-phylogenetic-analysis-of-lizards-of-the-liolaemus-chiliensis-group-lguania-tropiduridae
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
dc.publisher.none.fl_str_mv British Herpetological Society
publisher.none.fl_str_mv British Herpetological Society
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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