Research Article

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E.O.S. Alves; C.B.M. Cerqueira-Silva; A.M. Souza; C.A.F. Santos; F.P.Lima Neto; R.X. Corrêa
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Genetic divergence; Molecular markers; Multivariate statistics; Similarity coefficients

We investigated 10 similarity (and disimilarity) coefficients in a set of 40 wild genotypes of Croton linearifolius subjected to analyses using hierarchical grouping methods, grouping methods by optimization and data projection in two-dimensional space. Genotypes were characterized by analyzing DNA polymorphism with the use of 15 ISSR and 12 RAPD markers. The distance ... more

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diallel analysis; Genetic divergence; Heterosis; Molecular markers; Popcorn; Zea mays

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R.E.F. Munhoz; A.J. Prioli; A.T.Amaral Júnior; C.A. Scapim; G.A. Simon
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cluster analysis; Genetic divergence; Heterotic groups

The present study compared different similarity and dissimilarity coefficients and their influence in maize inbred line clustering. Ninety maize S0:1 inbred lines were used and genotyped with 25 microsatellite markers (simple sequence repeat). The simple matching, Rogers and Tanimoto, Russel and Rao, Hamann, Jaccard, Sorensen-Dice, Ochiai, and Roger’s modified distance coefficients ... more

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Allium sativum; Genetic divergence; Random amplified polymorphic DNA

The garlic cultivars grown in Brazil evolved from somatic mutations and clone selection by breeding programs and by the introduction of germplasm from other countries. Morphological characters have been used to differentiate these cultivars. Two hundred and six random amplified polymorphic DNA markers were utilized for a diversity analysis of the 17 most planted garlic cultivars in Brazil. ... more

G.S.C. Buso; M.R. Paiva; A.C. Torres; F.V. Resende; M.A. Ferreira; J.A. Buso; A.N. Dusi
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Velvet bean (Mucuna pruriens) seeds contain the catecholic amino acid L-DoPA (L-3,4-dihydroxyphenylalanine), which is a neurotransmitter precursor and used for the treatment of Parkinson’s disease and mental disorders. The great demand for L-DoPA is largely met by the pharmaceutical industry through extraction of the compound from wild populations of this plant; commercial ... more

S.S. Dhawan; G.K. Rai; M.P. Darokar; R.K. Lal; H.O. Misra; S.P.S. Khanuja
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Curcuma longa L.; Genetic divergence; Genetic resources; Natural dye; SSR markers

Turmeric (Curcuma longa) is a triploid, vegetatively propagated crop introduced early during the colonization of Brazil. Turmeric rhizomes are ground into a powder used as a natural dye in the food industry, although recent research suggests a greater potential for the development of drugs and cosmetics. In Brazil, little is known about the genetic variability available for crop ... more

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Allium sativum L.; Clones; Genetic divergence; Molecular markers

Outside its centers of origin, garlic propagates only asexually. Since asexual reproduction leads to the absence of meiotic recombination, the main garlic cultivars available for cultivation have arisen from the accumulation of somatic mutations in early cultivars. Thus, it is common for a single clone to have different names in different regions. This study aimed to evaluate the genetic ... more

R.G.F. Morales; J.T.V. Resende; F.V. Resende; C.A. Delatorre; A.S.T. Figueiredo; P.R. Da-Silva
12/03/2012
Aechmea; Genetic divergence; interspecific hybrid; SRAP

Conventional hybridization and selection techniques have aided the development of new ornamental crop cultivars. However, little information is available on the genetic divergence of bromeliad hybrids. In the present study, we investigated the genetic variability in interspecific hybrids of Aechmea gomosepala and A. recurvata var. recurvata using inflorescence ... more

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12/12/2014
Genetic divergence; Simple sequence repeat markers; Sweet corn; Zea mays L.

The purpose of this study was to analyze the genetic diversity of 15 sugary-1 sweet corn lines by microsatellite markers. One hundred pairs of simple sequence repeat primers that were mapped for field corn were tested. Of these primers, 15% were polymorphic, and all were selected for the evaluation. These primers identified a total of 39 alleles among the 15 loci that were ... more

A.D. Lopes; C.A. Scapim; C.A. Mangolin; M.F.P.S. Machado

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