Use este identificador para citar ou linkar para este item: http://repositorio.bc.ufg.br/handle/ri/11727
Tipo do documento: Artigo
Título: Geometric estimates of heritability in biological shape
Autor: Monteiro, Leandro Rabello
Diniz Filho, José Alexandre Felizola
Reis, Sérgio Furtado dos
Araújo, Edilson Divino de
Abstract: The recently developed geometric morphometrics methods represent an important contribution of statistics and geometry to the study of biological shapes. We propose simple protocols using shape distances that incorporate geometric techniques into linear quantitative genetic models that should provide insights into the contribution of genetics to shape variation in organisms. The geometric approaches use Procrustes distances in a curved shape space and distances in tangent spaces within and among families to estimate shape heritability. We illustrate the protocols with an example of wing shape variation in the honeybee, Apis mellifera. The heritability of overall shape variation was small, but some localized components depicting shape changes on distal wing regions showed medium to large heritabilities. The genetic variance-covariance matrix of the geometric shape variables was significantly correlated with the phenotypic shape variance-covariance matrix. A comparison of the results of geometric methods with the traditional multivariate analysis of interlandmark distances indicated that even with a larger dimensionality, the interlandmark distances were not as rich in shape information as the landmark coordinates. Quantitative genetics studies of shape should greatly benefit from the application of geometric methods.
Palavras-chave: Apis
Geometric morphometrics
Heritability
Procrustes distances
Quantitative genetics
Wing shape
País: Outros
Instituição: Society for the Study of Evolution
Unidade acadêmica: Instituto de Ciências Biológicas - ICB (RG)
Citação: MONTEIRO, Leandro R.; DINIZ FILHO, José Alexandre F.; REIS, Sérgio F. dos; ARAÚJO, Edilson D. Geometric estimates of heritability in biological shape. Evolution, Kansas, v. 56, n. 3, p. 563-572, Mar. 2002.
Tipo de acesso: Acesso Aberto
Identificador do documento: 10.1554/0014-3820(2002)056[0563:GEOHIB]2.0.CO;2
Identificador do documento: 10.1554/0014-3820(2002)056[0563:GEOHIB]2.0.CO;2
URI: http://repositorio.bc.ufg.br/handle/ri/11727
Data de publicação: Mar-2002
Aparece nas coleções:ICB - Artigos publicados em periódicos

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