The Anatomy of the Head of Ctenosaura pectinata (Iguanidae). Thomas M. Oelrich

1958 ◽  
Vol 33 (4) ◽  
pp. 288-288
Keyword(s):  
Ctenosaura Pectinata

scholarly journals Introgressive hybridization in a Spiny-Tailed Iguana, Ctenosaura pectinata, and its implications for taxonomy and conservation

PeerJ ◽  
2019 ◽  
Vol 7 ◽  
pp. e6744
Author(s):  
Eugenia Zarza ◽  
Víctor H. Reynoso ◽  
Christiana M. A. Faria ◽  
Brent C. Emerson
Keyword(s):  
Genetic Material ◽  
Introgressive Hybridization ◽  
Taxonomic Revision ◽  
Type Specimen ◽  
Clustering Methods ◽  
Western Mexico ◽  
Mtdna Lineages ◽  
A New Species ◽  
Different Levels ◽  
Ctenosaura Pectinata

Introgression, the transmission of genetic material of one taxon into another through hybridization, can have various evolutionary outcomes. Previous studies have detected signs of introgression between western populations of the Mexican endemic and threatened spiny-tailed iguana, Ctenosaura pectinata. However, the extent of this phenomenon along the geographic distribution of the species is unknown. Here, we use multilocus data together with detailed geographic sampling to (1) define genotypic clusters within C. pectinata; (2) evaluate geographic concordance between maternally and biparentally inherited markers; (3) examine levels of introgression between genotypic clusters, and (4) suggest taxonomic modifications in light of this information. Applying clustering methods to genotypes of 341 individuals from 49 localities of C. pectinata and the closely related C. acanthura, we inferred the existence of five genotypic clusters. Contact zones between genotypic clusters with signatures of interbreeding were detected, showing different levels of geographic discordance with mtDNA lineages. In northern localities, mtDNA and microsatellites exhibit concordant distributions, supporting the resurrection of C. brachylopha. Similar concordance is observed along the distribution of C. acanthura, confirming its unique taxonomic identity. Genetic and geographic concordance is also observed for populations within southwestern Mexico, where the recognition of a new species awaits in depth taxonomic revision. In contrast, in western localities a striking pattern of discordance was detected where up to six mtDNA lineages co-occur with only two genotypic clusters. Given that the type specimen originated from this area, we suggest that individuals from western Mexico keep the name C. pectinata. Our results have profound implications for conservation, management, and forensics of Mexican iguanas.

ORAL FIBROSARCOMA IN A BLACK IGUANA (CTENOSAURA PECTINATA)

2013 ◽  
Vol 44 (2) ◽  
pp. 513-516 ◽  
Author(s):  
Elizabeth Morales Salinas ◽  
Bertha O. Aguilar Arriaga ◽  
José Ramírez Lezama ◽  
Adriana Méndez Bernal ◽  
Serafín J. López Garrido
Keyword(s):  
Ctenosaura Pectinata

Characterization of the raphe nuclei of the reptile Ctenosaura pectinata

1991 ◽  
Vol 50 (4) ◽  
pp. 717-722 ◽  
Author(s):  
Fructuoso Ayala-Guerrero ◽  
Salvador Huitrón-Reséndiz ◽  
Raul Mancilla
Keyword(s):  
Raphe Nuclei ◽  
Raphé Nuclei ◽  
Ctenosaura Pectinata

Digestive Efficiency in the Herbivorous Lizard Ctenosaura pectinata

Copeia ◽  
1973 ◽  
Vol 1973 (3) ◽  
pp. 431 ◽  
Author(s):  
Gaylord Throckmorton
Keyword(s):  
Digestive Efficiency ◽  
Ctenosaura Pectinata
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