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...
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todo:paper_03051978_v19_n6_p467_Apfelbaum2023-10-03T15:21:36Z Genetic variability in the subterranean rodents Ctenomys australis and Ctenomys porteousi (Rodentia:Octodontidae) Apfelbaum, L.I. Massarini, A.I. Daleffe, L.E. Reig, O.A. 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. JOUR info:eu-repo/semantics/openAccess http://creativecommons.org/licenses/by/2.5/ar 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 Apfelbaum, L.I. Massarini, A.I. Daleffe, L.E. Reig, O.A. 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. |
format |
JOUR |
author |
Apfelbaum, L.I. Massarini, A.I. Daleffe, L.E. Reig, O.A. |
author_facet |
Apfelbaum, L.I. Massarini, A.I. Daleffe, L.E. Reig, O.A. |
author_sort |
Apfelbaum, L.I. |
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) |
url |
http://hdl.handle.net/20.500.12110/paper_03051978_v19_n6_p467_Apfelbaum |
work_keys_str_mv |
AT apfelbaumli geneticvariabilityinthesubterraneanrodentsctenomysaustralisandctenomysporteousirodentiaoctodontidae AT massariniai geneticvariabilityinthesubterraneanrodentsctenomysaustralisandctenomysporteousirodentiaoctodontidae AT daleffele geneticvariabilityinthesubterraneanrodentsctenomysaustralisandctenomysporteousirodentiaoctodontidae AT reigoa geneticvariabilityinthesubterraneanrodentsctenomysaustralisandctenomysporteousirodentiaoctodontidae |
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1782025783524458496 |