Data/hora: 11/06/2024 14:36:52

Provedor de dados: 	74	
País: 	Brazil	
Título: 	Nuclear DNA content of thirty species of Neotropical fishes	
Autores: 	Carvalho,Margarida Lima; Oliveira,Claudio; Foresti,Fausto.	
Data: 	1998-03-01	
Ano: 	1998	
Resumo: 	The present paper reports nuclear DNA content in 30 Neotropical freshwater fish species and summarizes the data on other Neotropical species presented in the literature. Among Neotropical fishes, the nuclear DNA content ranges from 1.04 ± 0.09 pg/nucleus in Corydoras cf. simulatus (2n = 62) to 248.0 pg/nucleus in Lepidosiren paradoxa (2n = 38). A general analysis of the data obtained in the present study for each species showed that DNA measurements were practically constant at the individual level, while significant differences were observed among individuals of the same population. This observation was valid for all species analyzed and was more evident in those species that presented other karyotypic particularities such as sex chromosomes or supernumerary chromosomes. The importance of changes in nuclear DNA content in the evolutionary process of Neotropical fishes is discussed.	
Tipo: 	Info:eu-repo/semantics/article	
Idioma: 	Inglês	
Identificador: 	http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1415-47571998000100009	
Editor: 	Sociedade Brasileira de Genética	
Relação: 	10.1590/S1415-47571998000100009	
Formato: 	text/html	
Fonte: 	Genetics and Molecular Biology  v.21 n.1 1998	
Fonte: 	info:eu-repo/semantics/openAccess