Work

Meiotic behavior of two polyploid species of genus Pleurodema (Anura: Leiuperidae) from central Argentina

Year: 2014

Type: article

Abstract: Polyploidy is an important evolutionary force but rare in vertebrates. However, in anurans, the genus Pleurodema has polyploid species, two of them tetraploid and one octoploid. The manner in which the chromosomes join in diakinesis can vary among species and, crucially, if they differ in their ploidy levels. In this work, we describe the meiotic configurations in two cryptic species from central Argentina, with different ploidy levels, Pleurodema kriegi (tetraploid) and P. cordobae (octoploid). A total of 306 diakineses from 19 individuals were analyzed. In meiosis, P. kriegi form 22 bivalents, whereas P. cordobae exhibits variation in meiotic figures. We discuss the possible allo- and autopolyploid origin of these species, and we consider that the autopolyploid origin of P. cordobae from P. kriegi might be the most feasible.

Source: Acta Herpetologica

DOI: 10.13128/acta_herpetol-12658

Authors: Nancy Salas, Julián Valetti, Pablo Grenat, Manuel Otero, Adolfo Martino

Institution: Universidad Nacional de Río Cuarto

Language: English

Topic: Chromosomal and Genetic Variations

Subfield: Genetics

Field: Biochemistry, Genetics and Molecular Biology

Domain: Life Sciences

Open Access status: diamond

Funders: Consejo Nacional de Investigaciones Científicas y Técnicas, Universidad Nacional de Río Cuarto, Secretaría de Ciencia y Técnica, Universidad Nacional de Río Cuarto

OpenAlex ID: W1557917996

FWCI: 0.169

Cites: 34

Cited by: 3

Related to: 10