Data/hora: 01/06/2024 02:16:47

Provedor de dados: 	83	
País: 	Brazil	
Título: 	Comparative morphology of gill glands in externally fertilizing and inseminating species of cheirodontine fishes, with implications on the phylogeny of the family Characidae (Actinopterygii: Characiformes)	
Autores: 	Oliveira,Cristina L. C. de; Malabarba,Luiz R.; Burns,John R.	
Data: 	2012-01-01	
Ano: 	2012	
Palavras-chave: 	Characid clade A; Characid clade B; Gill filaments; Gill secondary lamellae.	
Resumo: 	The structure and form of gill gland among inseminating and externally fertilizing species of the Cheirodontinae are described under light microscopy, scanning electron microscopy, and transmission electron microscopy, and compared to other members of the family Characidae. At least one species from thirteen cheirodontine genera were analyzed, totaling seventeen species. Gill glands were found in all analyzed mature males of Cheirodontinae and were always absent in females, being located on the anteriormost portion of the lower branch of the first gill arch, extending posteriorly through a variable number of gill filaments. Gill glands of all cheirodontines and of all characid species in which this organ has been described possess the same structure, being considered homologous and supporting a single origin of the structure in a common ancestor to Clade A and Clade B characids.	
Tipo: 	Info:eu-repo/semantics/article	
Idioma: 	Inglês	
Identificador: 	http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1679-62252012000200010	
Editor: 	Sociedade Brasileira de Ictiologia	
Relação: 	10.1590/S1679-62252012005000005	
Formato: 	text/html	
Fonte: 	Neotropical Ichthyology  v.10 n.2 2012	
Fonte: 	info:eu-repo/semantics/openAccess