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

Authors

DOI:

https://doi.org/10.18512/rbms2020v19e1200

Keywords:

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

Abstract

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.

Author Biography

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

Downloads

Published

2021-03-17

How to Cite

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

Issue

Vol. 19 (2020)

Section

Scientific Paper

License

Authors retain copyright and grant the journal right of first publication with the work simultaneously licensed under the Creative Commons Attribution License that allows the sharing of work and recognition of the work of authorship and initial publication in this journal.

Authors are able to take on additional contracts separately for non-exclusive distribution of the version of the paper published in this journal (eg, in an institutional repository or publish as a book), with acknowledgment of its initial publication in this journal.

Authors are permitted and encouraged to post their work online (eg, in institutional repositories or on their website) at any point before or during the editorial process, as this may leadto productive exchanges, as well as increase the impact and citation of published work.