Data/hora: 10/06/2024 16:04:19

Provedor de dados: 	74	
País: 	Brazil	
Título: 	Genetic diversity and population structure of Vriesea reitzii (Bromeliaceae), a species from the Southern Brazilian Highlands	
Autores: 	Soares,Luis Eduardo; Goetze,Márcia; Zanella,Camila M.; Bered,Fernanda.	
Data: 	2018-01-01	
Ano: 	2018	
Palavras-chave: 	Mixed Ombrophilous Forest; Bromeliad; Araucaria forest; Gene flow; Conservation.	
Resumo: 	Abstract The Southern Brazilian Highlands are composed by a mosaic of Mixed Ombrophilous Forest (MOF) and grassland formations, an interesting landscape for the study of population structure. We analyzed the genetic diversity within and among populations of the MOF-endemic bromeliad Vriesea reitzii by genotyping seven nuclear microsatellite loci in 187 individuals from six populations. We characterized levels of genetic diversity and assessed the genetic structure among populations. Vriesea reitzii populations showed high levels of genetic variation (number of alleles 28 - 43, allelic richness 3.589 - 5.531) and moderate levels of genetic differentiation (FST = 0.123, RST = 0.096). The high levels of genetic diversity may be explained by species life-history traits, such as habit and mating system. The moderate structure may be a product of the combination of ancient and contemporary gene flow, resulting from the expansion of the forest in the Holocene, and/or due to facilitated dispersal mediated by the MOF’s mosaic landscape. The genetic results indicated no imminent threat to this bromeliad. However, the species is highly associated with the MOF, putting landscape conservation at the center of conservation efforts for the species’ maintenance.	
Tipo: 	Info:eu-repo/semantics/article	
Idioma: 	Inglês	
Identificador: 	http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1415-47572018000200308	
Editor: 	Sociedade Brasileira de Genética	
Relação: 	10.1590/1678-4685-gmb-2017-0062	
Formato: 	text/html	
Fonte: 	Genetics and Molecular Biology  v.41 n.1 suppl.1 2018	
Fonte: 	info:eu-repo/semantics/openAccess