| Registro completo |
| Provedor de dados: |
Agronomy
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| País: |
Brazil
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| Título: |
Genetic diversity among Brazilian okra landraces detected by morphoagronomic and molecular descriptors
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| Autores: |
Massucato, Luana Rainieri
Nakamura, Karina Kazue
Ruas, Paulo Mauricio
Zefa, Douglas Mariani
Silva, Derly José Henrique da
Gonçalves, Leandro Simões Azeredo
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| Data: |
2019-09-20
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| Ano: |
2019
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| Palavras-chave: |
Genetic variability
Molecular markers
Phenotype
Bayesian analysis.
Recursos Genéticos
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| 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.
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| Tipo: |
Info:eu-repo/semantics/article
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| Idioma: |
Inglês
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| Identificador: |
http://periodicos.uem.br/ojs/index.php/ActaSciAgron/article/view/43426
10.4025/actasciagron.v42i1.43426
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| Editor: |
Universidade Estadual de Maringá
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| Relação: |
http://periodicos.uem.br/ojs/index.php/ActaSciAgron/article/view/43426/751375148412
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| Formato: |
application/pdf
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| Fonte: |
Acta Scientiarum. Agronomy; Vol 42 (2020): Publicação contínua; e43426
Acta Scientiarum. Agronomy; v. 42 (2020): Publicação contínua; e43426
1807-8621
1679-9275
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| Direitos: |
Copyright (c) 2020 Acta Scientiarum. Agronomy
https://creativecommons.org/licenses/by/4.0
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