Please use this identifier to cite or link to this item: http://repositorio.unicamp.br/jspui/handle/REPOSIP/63431
Type: Artigo de periódico
Title: NATURAL HYBRIDIZATION BETWEEN DIPLOID AND TETRAPLOID SPECIES OF LEAF-FROGS, GENUS PHYLLOMEDUSA (AMPHIBIA)
Author: HADDAD, CFB
POMBAL, JP
BATISTIC, RF
Abstract: Sympatric populations of the leaf-frogs Phyllomedusa distincta (2n = 26) and P. tetraploidea (4n = 52) were studied in southeastern Brazil. In a region of sympatry, seven of 15 leaf-frogs were triploid hybrids (3n = 39). The advertisement calls of both species are similar, and may not function adequately as a premating isolation mechanism. Triploids apparently exhibit low fertility or sterility, supporting the assertion that diploid and tetraploid populations are valid species. We suggest that P. tetraploidea originated by autopolyploidy of P. distincta, based on the following evidence: (1) the indistinguishable vocalizations of diploid and tetraploid species, and (2) the geographic distribution of species in the Phyllomedusa burmeisteri group.
Editor: Soc Stud Amphibians Reptiles
Rights: fechado
Identifier DOI: 10.2307/1564953
Date Issue: 1994
Appears in Collections:Unicamp - Artigos e Outros Documentos

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