Advances in cytogenetics of Brazilian rodents: cytotaxonomy, chromosome evolution and new karyotypic data

Autor(es)

Di-Nizo, Camilla Bruno ^[1] ; da Silva Banci, Karina Rodrigues ^[1] ; Sato-Kuwabara, Yukie ^[2] ; Silva, Maria Jose de J. ^[1]

Afiliação do(s) autor(es)

^[1] Inst Butantan, Lab Ecol & Evolucao, Ave Vital Brazil 1500, BR-05503900 Sao Paulo, SP - Brazil

^[2] Univ Sao Paulo, Inst Biociencias, Dept Genet & Biol Evolut, Rua Matao 277, BR-05508900 Sao Paulo, SP - Brazil

• Tipo de documento: Artigo Científico
• Fonte: COMPARATIVE CYTOGENETICS; v. 11, n. 4, p. 833-892, DEC 21 2017.
• Citações Web of Science: 2

Resumo

Rodents constitute one of the most diversified mammalian orders. Due to the morphological similarity in many of the groups, their taxonomy is controversial. Karyotype information proved to be an important tool for distinguishing some species because some of them are species-specific. Additionally, rodents can be an excellent model for chromosome evolution studies since many rearrangements have been described in this group. This work brings a review of cytogenetic data of Brazilian rodents, with information about diploid and fundamental numbers, polymorphisms, and geographical distribution. We point out that, even with the recent efforts on cytogenetic studies in this group, many species lack karyotypic data. Moreover, we describe for the first time the karyotype of Carterodon sulcidens (Lund, 1838) (Family Echimyidae), a new fundamental number for an undescribed species of Neacomys Thomas, 1900 (Family Cricetidae, Subfamily Sigmodontinae), and illustrate the karyotype of a Brazilian specimen of Mus musculus Linnaeus, 1758 (Family Muridae). This review compiles the cytogenetic data on Brazilian rodents reported in the last three decades, after the last revision published in 1984, including synonyms, chromosomal variations, and geographic distribution. Additionally, it also reinforces that Brazilian biodiversity is still poorly known, considering the new data reported here. (AU)

• Processo FAPESP: 14/02885-2 - Uma abordagem multidisciplinar para estudos de processos evolutivos e padrões biogeográficos em pequenos mamíferos e serpentes neotropicais
• Beneficiário: Maria José de Jesus Silva
• Modalidade de apoio: Auxílio à Pesquisa - Regular