The use of PCR-RFLP as an identification tool for three closely related species of rodents of the genus Akodon (Sigmodontinae, Akodontini)

Three cryptic species of the rodent Akodon (A. cursor, A. montensis and Akodon sp.) were analyzed. The two former species are sympatric in the Brazilian states of São Paulo, Rio de Janeiro and Minas Gerais, where hybrids have already been found. The third species, Akodon sp., occurs in an isolated a...

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Main Authors: Valéria Fagundes, Cristina Dornelas de Andrade Nogueira
Format: Article
Language:English
Published: Sociedade Brasileira de Genética 2007-01-01
Series:Genetics and Molecular Biology
Subjects:
Online Access:http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1415-47572007000400031
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author Valéria Fagundes
Cristina Dornelas de Andrade Nogueira
author_facet Valéria Fagundes
Cristina Dornelas de Andrade Nogueira
author_sort Valéria Fagundes
collection DOAJ
description Three cryptic species of the rodent Akodon (A. cursor, A. montensis and Akodon sp.) were analyzed. The two former species are sympatric in the Brazilian states of São Paulo, Rio de Janeiro and Minas Gerais, where hybrids have already been found. The third species, Akodon sp., occurs in an isolated area in Central Brazil. The identification of these species is difficult by the need of living animals. At present, karyotyping is the only method used in the identification of specimens. We used PCR-RFLP of the mitochondrial cytochrome gene to test the distinctiveness of the three species, which was confirmed by the absence of shared species-specific haplotypes. We also detected a geographical pattern of haplotypes distribution with highly polymorphic populations of A. cursor from Espírito Santo and of A. montensis from Rio Grande do Sul.
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spelling doaj.art-ad772264cd944157bf190a44f2b7c94d2022-12-21T17:31:15ZengSociedade Brasileira de GenéticaGenetics and Molecular Biology1415-47571678-46852007-01-0130369870110.1590/S1415-47572007000400031The use of PCR-RFLP as an identification tool for three closely related species of rodents of the genus Akodon (Sigmodontinae, Akodontini)Valéria FagundesCristina Dornelas de Andrade NogueiraThree cryptic species of the rodent Akodon (A. cursor, A. montensis and Akodon sp.) were analyzed. The two former species are sympatric in the Brazilian states of São Paulo, Rio de Janeiro and Minas Gerais, where hybrids have already been found. The third species, Akodon sp., occurs in an isolated area in Central Brazil. The identification of these species is difficult by the need of living animals. At present, karyotyping is the only method used in the identification of specimens. We used PCR-RFLP of the mitochondrial cytochrome gene to test the distinctiveness of the three species, which was confirmed by the absence of shared species-specific haplotypes. We also detected a geographical pattern of haplotypes distribution with highly polymorphic populations of A. cursor from Espírito Santo and of A. montensis from Rio Grande do Sul.http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1415-47572007000400031Akodon cursorAkodon montensisPCR-RFLPSigmodontinae
spellingShingle Valéria Fagundes
Cristina Dornelas de Andrade Nogueira
The use of PCR-RFLP as an identification tool for three closely related species of rodents of the genus Akodon (Sigmodontinae, Akodontini)
Genetics and Molecular Biology
Akodon cursor
Akodon montensis
PCR-RFLP
Sigmodontinae
title The use of PCR-RFLP as an identification tool for three closely related species of rodents of the genus Akodon (Sigmodontinae, Akodontini)
title_full The use of PCR-RFLP as an identification tool for three closely related species of rodents of the genus Akodon (Sigmodontinae, Akodontini)
title_fullStr The use of PCR-RFLP as an identification tool for three closely related species of rodents of the genus Akodon (Sigmodontinae, Akodontini)
title_full_unstemmed The use of PCR-RFLP as an identification tool for three closely related species of rodents of the genus Akodon (Sigmodontinae, Akodontini)
title_short The use of PCR-RFLP as an identification tool for three closely related species of rodents of the genus Akodon (Sigmodontinae, Akodontini)
title_sort use of pcr rflp as an identification tool for three closely related species of rodents of the genus akodon sigmodontinae akodontini
topic Akodon cursor
Akodon montensis
PCR-RFLP
Sigmodontinae
url http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1415-47572007000400031
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