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- Title
Coeficientes de similaridade para avaliação da diversidade genética em pinhão-manso por marcadores ISSR.
- Authors
de Souza TOMAZ, Francisco Linco; da SILVA, Ana Paula Moura; Ribeiro ARAÚJO, Linda Brenna; CUNHA NETO, Jonas; de Magalhães BERTINI, Cândida Hermínia Campos
- Abstract
The aim of this work was to evaluate the efficiency of using different similarity coefficients in the estimation of Jatropha curcas L. genetic diversity using ISSR molecular markers. Genomic DNA was extracted from young leaves of the 43 jatropha accessions. Genetic dissimilarity matrices were obtained from the Baroni, Simple Matching, Hamann, Index II, Index III, Jaccard, Nei and Li, Ochiai I, Ochiai II, Rogers and Tanimoto and Sokal and Sneath coefficients. The dendrograms were constructed using the UPGMA method and compared using the co-phenetic correlation coefficient, stress and distortion parameters. Correlations between pairs of matrices were estimated by the Mantel test. There was agreement between the original matrices and the matrices resulting from the grouping process for all the studied coefficients. The Jaccard and Nei and Li indices did not differ in terms of the order of the evaluated accessions and allowed for greater discrimination of these, being the most suitable for assessing genetic diversity in physic nut based on ISSR molecular markers.
- Publication
Nativa, 2020, Vol 8, Issue 4, p456
- ISSN
2318-7670
- Publication type
Article
- DOI
10.31413/nativa.v8i4.9685