The karyotype of three Brazilian Terrarana frogs (Amphibia, Anura) with evidence of a new Barycholos species

Autor(es)

Siqueira, Sergio ^[1] ; Aguiar, Jr., Odair ^[2] ; Pansonato, Andre ^[3] ; Giaretta, Ariovaldo A. ^[4] ; Struessmann, Christine ^[5] ; Martins, Itamar ^[6] ; Recco-Pimentel, Shirlei M. ^[1]

Afiliação do(s) autor(es)

^[1] Univ Estadual Campinas, Inst Biol, Dept Biol Celular, BR-13083863 Campinas, SP - Brazil

^[2] Univ Fed Sao Paulo, Dept Biociencias, Santos, SP - Brazil

^[3] Univ Fed Mato Grosso, Programa Posgrad Ecol & Conservacao Biodiversidad, Cuiaba, MT - Brazil

^[4] Univ Fed Uberlandia, Inst Biol, Dept Biociencias, BR-38400 Uberlandia, MG - Brazil

^[5] Univ Fed Mato Grosso, Dept Ciencias Basicas & Prod Anim, Cuiaba, MT - Brazil

^[6] Univ Taubate, Dept Biol, Taubate, SP - Brazil

• Tipo de documento: Artigo Científico
• Fonte: GENETICS AND MOLECULAR BIOLOGY; v. 32, n. 3, p. 470-476, 2009.
• Citações Web of Science: 5

Resumo

A recent substantial rearrangement of the 882 described eleutherodactyline frog species has considerably improved the understanding of their systematics. Nevertheless, many taxonomic aspects of the South American eleutherodactyline species remain unknown and require further investigation using morphological, cytogenetic and molecular approaches. In this work, the karyotypes of the Brazilian species Ischnocnema juipoca (Atibaia and Campos do Jordao, SP), Barycholos cf. ternetzi (Uberlandia, MG, and Porto Nacional, TO), and Pristimantis crepitans (Chapada dos Guimaraes and Sao Vicente, MT) were analyzed using Giemsa staining, Ag-NOR labeling, and C-banding techniques. All individuals had a diploid number of 22 chromosomes, but the Fundamental Numbers were different among species. The herein described low chromosome number of Pristimantis crepitans is unique within this genus, suggesting that cytogenetically this species is not closely related either to its congeneric species or to Ischnocnema. In addition, karyotype differences, mainly in the NOR position, clearly distinguished the two Barycholos populations, besides indicating the existence of a so far undescribed species in this genus. A taxonomic review could clarify the systematic position of P. crepitans and verify the hypothetic new Barycholos species. (AU)

• Processo FAPESP: 01/13341-3 - Diversidade de anfíbios anuros do estado de São Paulo
• Beneficiário: Célio Fernando Baptista Haddad
• Modalidade de apoio: Auxílio à Pesquisa - Programa BIOTA - Temático
• Processo FAPESP: 06/61738-3 - Análise citogenética e da ultra estrutura dos espermatozóides de espécies dos gêneros Eleutherodactylus, Brachycephalus, Barycholos (Brachycephalidae) e Atelopus (Bufonidae)
• Beneficiário: Shirlei Maria Recco-Pimentel
• Modalidade de apoio: Auxílio à Pesquisa - Regular