Data/hora: 09/06/2024 12:34:24

Provedor de dados: | 74
País: | Brazil
Título: | Multivariate analysis as a tool for measuring the stability of morphometric traits in Lycopersicon plants from in vitro culture
Autores: | Pratta,Guillermo; Zorzoli,Roxana; Picardi,Liliana Amelia.
Data: | 2000-06-01
Ano: | 2000
Resumo: | The phenotypic stability of morphometric traits in Lycopersicon spp. (stem perimeter at the base, middle and top, and number of flowers per cluster) was measured by multivariate analysis through a progeny test in order to estimate the genetic stability of these traits. Principal components were calculated for two groups of Lycopersicon spp., non-regenerated plants and the progeny of regenerated plants. Analysis of variance was performed to support principal component analysis. Both groups presented similar eigenvalues and eigenvectors, while no significant differences were found between any of the traits studied. These results indicated that the phenotypic structure was the same among the progeny of regenerated and non-regenerated plants, so that no variation would occur in in vitro culture. Multivariate analysis proved to be an appropriate methodology for the measurement of the stability of morphometric traits after one regeneration cycle.
Tipo: | Info:eu-repo/semantics/article
Idioma: | Inglês
Identificador: | http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1415-47572000000200039
Editor: | Sociedade Brasileira de Genética
Relação: | 10.1590/S1415-47572000000200039
Formato: | text/html
Fonte: | Genetics and Molecular Biology  v.23 n.2 2000
Fonte: | info:eu-repo/semantics/openAccess