Data/hora: 02/06/2024 04:56:54

Provedor de dados: 	Genetics and Molecular Biology	
País: 	Brazil	
Título: 	Estimating dispersal and gene flow in the neotropical freshwater turtle Hydromedusa maximiliani (Chelidae) by combining ecological and genetic methods	
Autores: 	Souza,Franco L.; Cunha,Anderson F.; Oliveira,Marcos A.; Pereira,Gonçalo A.G.; Reis,Sérgio F. dos.	
Data: 	2002-01-01	
Ano: 	2002	
Palavras-chave: 	Hydromedusa maximiliani; Dispersal; Gene flow; Conservation.	
Resumo: 	Hydromedusa maximiliani is a vulnerable neotropical freshwater turtle endemic to mountainous regions of the Atlantic rainforest in southeastern Brazil. Random amplified polymorphic DNA (RAPD) was used to estimate the gene flow and dispersal for individuals inhabiting rivers and streams within a drainage. Nine primers generated 27 scoreable bands, of which 9 (33%) were polymorphic and produced 12 RAPD phenotypes. The gene flow estimates (Nm) among turtles inhabiting different rivers and streams were variable, ranging from 0.09 to 3.00 (mean: 0.60). For some loci, the rates of gene flow could offset population differentiation (Nm &gt; 1), whereas for others random genetic drift could result in population divergence (Nm &lt; 1). Since the genetic variation of this turtle seems to be structured according to the natural hierarchical system of rivers and streams within drainages, management programs involving translocations between different regions across the geographical range of H. maximiliani should be viewed with caution.	
Tipo: 	Info:eu-repo/semantics/article	
Idioma: 	Inglês	
Identificador: 	http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1415-47572002000200007	
Editor: 	Sociedade Brasileira de Genética	
Relação: 	10.1590/S1415-47572002000200007	
Formato: 	text/html	
Fonte: 	Genetics and Molecular Biology  v.25 n.2 2002	
Fonte: 	info:eu-repo/semantics/openAccess