Genetic variability in the subterranean rodents Ctenomys australis and Ctenomys porteousi (Rodentia:Octodontidae)

Genetic variation encoded by 31-35 loci was estimated in four populations of subterranean rodent Ctenomys australis and in one population of C. porteousi. Estimates of observed heterozygosity per population ranged from 0.00 to 11.18%, and polymorphism from 0.00 to 45.00%. These results were compared...

Descripción completa

Guardado en:
Detalles Bibliográficos
Autor principal: Massarini, Alicia Isabel
Publicado: 1991
Materias:
allozymes
Ctenomys
genetic variability
local populations
subterranean rodents
Acceso en línea:https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_03051978_v19_n6_p467_Apfelbaum
http://hdl.handle.net/20.500.12110/paper_03051978_v19_n6_p467_Apfelbaum
Aporte de:
Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA) de Universidad de Buenos Aires
id paper:paper_03051978_v19_n6_p467_Apfelbaum
record_format dspace
spelling paper:paper_03051978_v19_n6_p467_Apfelbaum2025-07-30T18:08:09Z Genetic variability in the subterranean rodents Ctenomys australis and Ctenomys porteousi (Rodentia:Octodontidae) Massarini, Alicia Isabel allozymes Ctenomys genetic variability local populations subterranean rodents Genetic variation encoded by 31-35 loci was estimated in four populations of subterranean rodent Ctenomys australis and in one population of C. porteousi. Estimates of observed heterozygosity per population ranged from 0.00 to 11.18%, and polymorphism from 0.00 to 45.00%. These results were compared with data from other subterranean and non-subterranean rodents in their bearing on different models for interpretation of genetic variability in subterranean rodents. The high variation in H and P values found in different species and populations of tuco-tucos suggest that in them, population structure is probably more important that environmental homogeneity in triggering genetic variation. In contrast to C. porteousi, Fis values suggested that there is no strong evidence for inbreeding within populations of C. australis. Fst values indicated a considerable genetic divergence among population samples in C. autralis. Estimates of genetic distance [D] values among the four populations of C. australis showed an average value of D = 0.0158, similar to those found between local populations of the same species in other organisms. © 1991. Fil:Massarini, A.I. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina. 1991 https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_03051978_v19_n6_p467_Apfelbaum http://hdl.handle.net/20.500.12110/paper_03051978_v19_n6_p467_Apfelbaum
institution Universidad de Buenos Aires
institution_str I-28
repository_str R-134
collection Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA)
topic allozymes
Ctenomys
genetic variability
local populations
subterranean rodents
spellingShingle allozymes
Ctenomys
genetic variability
local populations
subterranean rodents
Massarini, Alicia Isabel
Genetic variability in the subterranean rodents Ctenomys australis and Ctenomys porteousi (Rodentia:Octodontidae)
topic_facet allozymes
Ctenomys
genetic variability
local populations
subterranean rodents
description Genetic variation encoded by 31-35 loci was estimated in four populations of subterranean rodent Ctenomys australis and in one population of C. porteousi. Estimates of observed heterozygosity per population ranged from 0.00 to 11.18%, and polymorphism from 0.00 to 45.00%. These results were compared with data from other subterranean and non-subterranean rodents in their bearing on different models for interpretation of genetic variability in subterranean rodents. The high variation in H and P values found in different species and populations of tuco-tucos suggest that in them, population structure is probably more important that environmental homogeneity in triggering genetic variation. In contrast to C. porteousi, Fis values suggested that there is no strong evidence for inbreeding within populations of C. australis. Fst values indicated a considerable genetic divergence among population samples in C. autralis. Estimates of genetic distance [D] values among the four populations of C. australis showed an average value of D = 0.0158, similar to those found between local populations of the same species in other organisms. © 1991.
author Massarini, Alicia Isabel
author_facet Massarini, Alicia Isabel
author_sort Massarini, Alicia Isabel
title Genetic variability in the subterranean rodents Ctenomys australis and Ctenomys porteousi (Rodentia:Octodontidae)
title_short Genetic variability in the subterranean rodents Ctenomys australis and Ctenomys porteousi (Rodentia:Octodontidae)
title_full Genetic variability in the subterranean rodents Ctenomys australis and Ctenomys porteousi (Rodentia:Octodontidae)
title_fullStr Genetic variability in the subterranean rodents Ctenomys australis and Ctenomys porteousi (Rodentia:Octodontidae)
title_full_unstemmed Genetic variability in the subterranean rodents Ctenomys australis and Ctenomys porteousi (Rodentia:Octodontidae)
title_sort genetic variability in the subterranean rodents ctenomys australis and ctenomys porteousi (rodentia:octodontidae)
publishDate 1991
url https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_03051978_v19_n6_p467_Apfelbaum
http://hdl.handle.net/20.500.12110/paper_03051978_v19_n6_p467_Apfelbaum
work_keys_str_mv AT massarinialiciaisabel geneticvariabilityinthesubterraneanrodentsctenomysaustralisandctenomysporteousirodentiaoctodontidae
_version_ 1840321368777818112

Ejemplares similares