Data/hora: 15/06/2024 02:18:19

Provedor de dados: 	64	
País: 	Brazil	
Título: 	Genetic diversity in Australian Cedar genotypes selected by mixed models	
Autores: 	Tavares,Rulfe; Viana,Alexandre Pio; Barroso,Deborah Guerra; Amaral Júnior,Antonio Teixeira do.	
Data: 	2012-04-01	
Ano: 	2012	
Palavras-chave: 	Molecular markers; Genetic values; Woody plant.	
Resumo: 	The increasing demand for raw material for multiple uses of forest products and by-products has attracted the interest for fast growing species, such as the Australian Cedar (Toona ciliata), which presents high productive and economic potential. The present work aimed at estimating genetic diversity by DNA markers and morphological traits supported for the mixed models. The following traits were measured and genotypes were sampled randomly in different areas: diameter at breast height, height, cylindrical volume, diameter, distance between nodes and crown diameter. Twelve RAPD primers were used and generated a total of 91 marks, 82 of which were polymorphic. The high percentage of polymorphic markers, 90.10%, demonstrated that discrimination in this species is efficient, but it yet little studied, for this case we can find the extent of the genetic basis for the application of technical improvement. The assessment of genetic diversity by the UPGMA method using the binary and morphological data provided the expression of genetic dissimilarities among the accessions evaluated, optimizing the perception of this divergence. The use of mixed models was efficient to assess combined genetic diversity to optimize the selection of genotypes with divergent genetic values for diameter at breast height.	
Tipo: 	Info:eu-repo/semantics/article	
Idioma: 	Inglês	
Identificador: 	http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1413-70542012000200005	
Editor: 	Editora da Universidade Federal de Lavras	
Relação: 	10.1590/S1413-70542012000200005	
Formato: 	text/html	
Fonte: 	Ciência e Agrotecnologia  v.36 n.2 2012	
Fonte: 	info:eu-repo/semantics/openAccess