Data/hora: 04/06/2024 18:59:51

Provedor de dados: | 1
País: | Brazil
Título: | Genetic diversity among Brazilian okra landraces detected by morphoagronomic and molecular descriptors
Autores: | Massucato, Luana Rainieri; Nakamura, Karina Kazue; Ruas, Paulo Mauricio; Zefa, Douglas Mariani; Silva, Derly José Henrique da; Gonçalves, Leandro Simões Azeredo.
Data: | 2019-09-20
Ano: | 2019
Palavras-chave: | Genetic variability; Molecular markers; Phenotype; Bayesian analysis.; Recursos Genéticos.
Resumo: | The conservation of okra landraces [Abelmoschus esculentus (L.) Moench] in gene banks is essential for the success of their use in breeding programmes. This study evaluated the genetic diversity among okra landraces in Brazil based on morphoagronomic descriptors and AFLP markers. We studied 30 accessions of the vegetable gene bank of the Universidade Federal de Viçosa. To this end, 17 morphoagronomic descriptors and five combinations of AFLP primers were used. Genetic parameters were estimated for the quantitative traits and the accessions were grouped by Ward’s method, using the Gower’s and Jaccard’s distance measures, respectively, for the morphoagronomic and molecular data. Polymorphisms were observed for all qualitative traits, while the quantitative traits were significant by deviance analysis. The genetic parameters confirmed the existence of variability among accessions, and high accuracy and heritability indices were found for the traits related to fruit and plant height. Ward’s grouping showed no relationship between the clusters formed with the morphoagronomic and molecular data and the geographical origin of the accessions. No association between morphoagronomic descriptors and AFLP markers was observed. The lack of correlation suggests that both approaches of characterization are important to understand and differentiate the okra accessions.
Tipo: | Info:eu-repo/semantics/article
Idioma: | Inglês

Identificador:

http://periodicos.uem.br/ojs/index.php/ActaSciAgron/article/view/43426

10.4025/actasciagron.v42i1.43426

Editor: | Universidade Estadual de Maringá
Relação: | http://periodicos.uem.br/ojs/index.php/ActaSciAgron/article/view/43426/751375148412
Formato: | application/pdf

Fonte:

Acta Scientiarum. Agronomy; Vol 42 (2020): Publicação contínua; e43426

Acta Scientiarum. Agronomy; v. 42 (2020): Publicação contínua; e43426

1807-8621

1679-9275

Fonte:

Copyright (c) 2020 Acta Scientiarum. Agronomy

https://creativecommons.org/licenses/by/4.0