Allozyme genetic distances and evolutionary relationships in species of akodontine rodents (Cricetidae: Sigmodontinae)

Allozyme genetic distances were estimated for ten species of akodontine rodents, as compared with the Oryzomyini Oligoryzomys longicaudatus, which was used as an outgroup to assess plesiomorphic character‐states. Twenty‐six loci were analysed. Distribution patterns of allele frequencies were determi...

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Autores principales: Apfelbaum, L.I., Reig, O.A.
Formato: JOUR
Materias:
Akodontini
allozymes
electrophoresis
evolutionary relationships
genetic distances
molecular clock
Acceso en línea:http://hdl.handle.net/20.500.12110/paper_00244066_v38_n3_p257_Apfelbaum
Aporte de:
Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA) de Universidad de Buenos Aires
id todo:paper_00244066_v38_n3_p257_Apfelbaum
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spelling todo:paper_00244066_v38_n3_p257_Apfelbaum2023-10-03T14:34:57Z Allozyme genetic distances and evolutionary relationships in species of akodontine rodents (Cricetidae: Sigmodontinae) Apfelbaum, L.I. Reig, O.A. Akodontini allozymes electrophoresis evolutionary relationships genetic distances molecular clock Allozyme genetic distances were estimated for ten species of akodontine rodents, as compared with the Oryzomyini Oligoryzomys longicaudatus, which was used as an outgroup to assess plesiomorphic character‐states. Twenty‐six loci were analysed. Distribution patterns of allele frequencies were determined by both phenetic (UPGMA) and cladistic (PAUP') techniques. Allozyme analysis confirmed monophyly for the Akodontini, and among them, the distinctiveness of the genus Oxymycterus. Genetic divergence among the eight species of Akodon was small compared to most known species of rodents. Phenrtic and phylogenetic analysis between Bolonys obscurus and species of Akodon was m agreement with previous chromosomal work but in disagreement with the indications of morphology. The general lack of allozymic differentiation among members of the Akodontini suggests that in this group molecular divergence is unrelated to speciation. Molecular clock estimation calibrated by fossils showed that generic divergence within Akodontini started at least in the late Miocene and that divergence of Akodintini from Orizomyini occurred within the Miocene. Copyright © 1989, Wiley Blackwell. All rights reserved JOUR info:eu-repo/semantics/openAccess http://creativecommons.org/licenses/by/2.5/ar http://hdl.handle.net/20.500.12110/paper_00244066_v38_n3_p257_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 Akodontini
allozymes
electrophoresis
evolutionary relationships
genetic distances
molecular clock
spellingShingle Akodontini
allozymes
electrophoresis
evolutionary relationships
genetic distances
molecular clock
Apfelbaum, L.I.
Reig, O.A.
Allozyme genetic distances and evolutionary relationships in species of akodontine rodents (Cricetidae: Sigmodontinae)
topic_facet Akodontini
allozymes
electrophoresis
evolutionary relationships
genetic distances
molecular clock
description Allozyme genetic distances were estimated for ten species of akodontine rodents, as compared with the Oryzomyini Oligoryzomys longicaudatus, which was used as an outgroup to assess plesiomorphic character‐states. Twenty‐six loci were analysed. Distribution patterns of allele frequencies were determined by both phenetic (UPGMA) and cladistic (PAUP') techniques. Allozyme analysis confirmed monophyly for the Akodontini, and among them, the distinctiveness of the genus Oxymycterus. Genetic divergence among the eight species of Akodon was small compared to most known species of rodents. Phenrtic and phylogenetic analysis between Bolonys obscurus and species of Akodon was m agreement with previous chromosomal work but in disagreement with the indications of morphology. The general lack of allozymic differentiation among members of the Akodontini suggests that in this group molecular divergence is unrelated to speciation. Molecular clock estimation calibrated by fossils showed that generic divergence within Akodontini started at least in the late Miocene and that divergence of Akodintini from Orizomyini occurred within the Miocene. Copyright © 1989, Wiley Blackwell. All rights reserved
format JOUR
author Apfelbaum, L.I.
Reig, O.A.
author_facet Apfelbaum, L.I.
Reig, O.A.
author_sort Apfelbaum, L.I.
title Allozyme genetic distances and evolutionary relationships in species of akodontine rodents (Cricetidae: Sigmodontinae)
title_short Allozyme genetic distances and evolutionary relationships in species of akodontine rodents (Cricetidae: Sigmodontinae)
title_full Allozyme genetic distances and evolutionary relationships in species of akodontine rodents (Cricetidae: Sigmodontinae)
title_fullStr Allozyme genetic distances and evolutionary relationships in species of akodontine rodents (Cricetidae: Sigmodontinae)
title_full_unstemmed Allozyme genetic distances and evolutionary relationships in species of akodontine rodents (Cricetidae: Sigmodontinae)
title_sort allozyme genetic distances and evolutionary relationships in species of akodontine rodents (cricetidae: sigmodontinae)
url http://hdl.handle.net/20.500.12110/paper_00244066_v38_n3_p257_Apfelbaum
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