ANALYSIS OF THE GENETIC DIVERSITY IN MAIZE LANDRACE CULTIVARS FROM NORTHERN RIO GRANDE DO SUL, BRAZIL

Autores

DOI:

https://doi.org/10.18512/rbms2020v19e1200

Palavras-chave:

multivariate technics, genetic variability, maize breeding, Zea mays L.

Resumo

Maize landraces are important genetic resources for maize
breeding. Many of these landrace varieties have not yet been properly studied
to be distinguished from the others. In this study, multivariate statistical
methods were used, beyond the analysis of variance, for estimating genetic
dissimilarity among 27 maize landrace accessions. Principal Component
Analysis and clustering analysis were performed using 16 evaluated
quantitative traits. The Analysis of Variance results reported the existence of
significant differences among the tested accessions for 14 evaluated traits. The
first principal component and the second one almost explained 49% of found
experimental phenotypic variance. Four different clusters were formed by the
used clustering analysis. The clusters differed in 11 traits by the Analysis of
Variance. This result and the graphical integration of this dendrogram with
the Principal Component Analysis allowed to conclude that the phenotypic
variation found may be due to the genotypic distinctions existing among the
four groups of accesses determined in this study.

Biografia do Autor

JÉSSICA ARGENTA, Universidade Federal do Rio Grande do Sul

Eng. Agr. Jéssica ArgentaMestranda em Fitotecnia - Melhoramento de PlantasDepartamento de Plantas de Lavoura Universidade Federal do Rio Grande do Sul

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Publicado

17-03-2021

Como Citar

ARGENTA, J., ACUNHA, J. G., MACHADO, B. O., RIZZARDO, A., & BISPO, N. B. (2021). ANALYSIS OF THE GENETIC DIVERSITY IN MAIZE LANDRACE CULTIVARS FROM NORTHERN RIO GRANDE DO SUL, BRAZIL. REVISTA BRASILEIRA DE MILHO E SORGO, 19, 12. https://doi.org/10.18512/rbms2020v19e1200

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Artigos Cientificos