An Insight into the Chromosomal Evolution of Lebiasinidae (Teleostei, Characiformes)

Autor(es):Mostrar menos -

Sassi, Francisco de M. C. ^[1] ; Hatanaka, Terumi ^[1] ; de Morae, Renata Luiza R. ^[1] ; Toma, Gustavo A. ^[1] ; de Oliveira, Ezequiel A. ^[2] ; Liehr, Thomas ^[3] ; Rab, Petr ^[4] ; Bertollo, Luiz A. C. ^[1] ; Viana, Patrik F. ^[5] ; Feldberg, Eliana ^[5] ; Nirchio, Mauro ^[6] ; Marinho, Manoela Maria F. ^{[7, 8]} ; e Souza, Jose Francisco de S. ^[5] ; Cioffi, Marcelo de B. ^[1]

Afiliação do(s) autor(es)

^[1] Univ Fed Sao Carlos, Dept Genet & Evolucao, Lab Citogenet Peixes, BR-13565905 Sao Carlos, SP - Brazil

^[2] Secretaria Estado Educ Mato Grosso SEDUC MT, BR-78049909 Cuiaba, MT - Brazil

^[3] Univ Hosp Jena, Inst Human Genet, D-07747 Jena - Germany

^[4] Czech Acad Sci, Inst Anim Physiol & Genet, Lab Fish Genet, Libechov 27721 - Czech Republic

^[5] Inst Nacl de Pesquisas da Amazonia, Lab Genet Anim, Coordenacao Biodiversidade, BR-69067375 Manaus, Amazonas - Brazil

^[6] Univ Tecn Machala, Fac Ciencias Agr, Machala 070151 - Ecuador

^[7] Museu Zool Univ Sao Paulo MZUSP, BR-04263000 Sao Paulo, SP - Brazil

^[8] Univ Fed Paraiba, Dept Sistemat & Ecol, BR-58033455 Joao Pessoa, Paraiba - Brazil

• Tipo de documento: Artigo Científico
• Fonte: GENES; v. 11, n. 4 APR 2020.
• Citações Web of Science: 0

Resumo

Lebiasinidae fishes have been historically neglected by cytogenetical studies. Here we present a genomic comparison in eleven Lebiasinidae species, in addition to a review of the ribosomal DNA sequences distribution in this family. With that, we develop ten sets of experiments in order to hybridize the genomic DNA of representative species from the genus Copeina, Copella, Nannostomus, and Pyrrhulina in metaphase plates of Lebiasina melanoguttata. Two major pathways on the chromosomal evolution of these species can be recognized: (i) conservation of 2n = 36 bi-armed chromosomes in Lebiasininae, as a basal condition, and (ii) high numeric and structural chromosomal rearrangements in Pyrrhulininae, with a notable tendency towards acrocentrization. The ribosomal DNA (rDNA) distribution also revealed a marked differentiation during the chromosomal evolution of Lebiasinidae, since both single and multiple sites, in addition to a wide range of chromosomal locations can be found. With some few exceptions, the terminal position of 18S rDNA appears as a common feature in Lebiasinidae-analyzed species. Altogether with Ctenoluciidae, this pattern can be considered a symplesiomorphism for both families. In addition to the specific repetitive DNA content that characterizes the genome of each particular species, Lebiasina also keeps inter-specific repetitive sequences, thus reinforcing its proposed basal condition in Lebiasinidae. (AU)

• Processo FAPESP: 17/09321-5 - Characiformes miniaturas (Teleostei: Ostariophysi): evolução, diversidade e biogeografia
• Beneficiário: Manoela Maria Marinho Koh
• Linha de fomento: Auxílio à Pesquisa - Programa BIOTA - Apoio a Jovens Pesquisadores
• Processo FAPESP: 18/22033-1 - Uma abordagem intercontinental para a investigação da evolução cromossômica, diversidade genética e biogeografia na ordem Osteoglossiformes (Teleostei: Osteoglossomorpha). Parte III.
• Beneficiário: Marcelo de Bello Cioffi
• Linha de fomento: Auxílio à Pesquisa - Regular
• Processo FAPESP: 18/24235-0 - Evolução cariotípica e de cromossomos sexuais em peixes neotropicais. parte iii.
• Beneficiário: Luiz Antonio Carlos Bertollo
• Linha de fomento: Auxílio à Pesquisa - Regular