Data/hora: 16/06/2024 17:14:12

Provedor de dados: 	83	
País: 	Brazil	
Título: 	Cytotaxonomic diagnosis of Trichomycterus diabolus (Teleostei: Trichomycteridae) with comments about its evolutionary relationships with co-generic species	
Autores: 	Torres,Rodrigo A.; Oliveira,Claudio; Foresti,Fausto.	
Data: 	2004-09-01	
Ano: 	2004	
Palavras-chave: 	Trichomycterinae; Karyotype; Chromosome evolution; Fish cytogenetic.	
Resumo: 	The karyotype and the Ag-NOR location of a sample of Trichomycterus diabolus collected in the córrego Hortelã (Botucatu, São Paulo, Brazil) are described. The species exhibited 2n=56 chromosomes (42 metacentrics, 12 submetacentrics and 2 subtelocentrics) and the nucleolus organizing region located near to the centromere on the long arm of the largest metacentric pair. The presence of 2n=56 chromosomes in T. diabolus is an interesting characteristic since until now all cis-Andean species karyotyped presented 2n=54 chromosomes while almost all trans-Andean species presented different diploid numbers. The possible origin of this unexpected karyotypic form is discussed.	
Tipo: 	Info:eu-repo/semantics/article	
Idioma: 	Inglês	
Identificador: 	http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1679-62252004000300003	
Editor: 	Sociedade Brasileira de Ictiologia	
Relação: 	10.1590/S1679-62252004000300003	
Formato: 	text/html	
Fonte: 	Neotropical Ichthyology  v.2 n.3 2004	
Fonte: 	info:eu-repo/semantics/openAccess