Origin and clonal diversity of the parthenogenetic lizard Aspidoscelis rodecki (Squamata: Teiidae): chromosomal evidence.

Authors

  • Norma L. Manríquez-Morán
  • Fausto R. Méndez-de la Cruz

DOI:

https://doi.org/10.11606/issn.2316-9079.v11i1p29-35

Keywords:

chromosome fission, karyotype, parthenogenesis.

Abstract

We analyzed the karyotypes of individuals of two different populations of Aspidoscelis rodecki to investigate the origin and
chromosomal diversity of this unisexual lizard. The karyotype of A. rodecki has a diploid number of 50 chromosomes, and exhibits a marked structural heteromorphism. The unique arrangement seems to have originated by Todd´s fission after the origin of parthenogenesis (hybridization between A. angusticeps and A. deppii). This pattern was observed in two populations of the species, which is endemic to the Yucatan Peninsula.

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Author Biographies

  • Norma L. Manríquez-Morán
    Laboratorio de Sistemática Molecular, Centro de Investigaciones Biológicas, Universidad Autónoma del Estado de Hidalgo
  • Fausto R. Méndez-de la Cruz
    Laboratorio de Herpetología, Instituto de Biología, Universidad Nacional Autónoma de México

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Published

2012-06-18

Issue

Vol. 11 No. 1 (2012)

Section

Articles

License

All material originally published in Phyllomedusa belongs to Escola Superior de Agricultura Luiz de Queiroz - Universidade de São Paulo. All contents are under a license of Creative Commons BY-NC-ND.

How to Cite

Manríquez-Morán, N. L., & Méndez-de la Cruz, F. R. (2012). Origin and clonal diversity of the parthenogenetic lizard Aspidoscelis rodecki (Squamata: Teiidae): chromosomal evidence. Phyllomedusa: Journal of Herpetology, 11(1), 29-35. https://doi.org/10.11606/issn.2316-9079.v11i1p29-35