Research Article

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05/11/2015
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Flower color is an important trait of the ornamental peach (Prunus persica L.). However, the mechanism responsible for the different colors that appear in the same genotype remains unclear. In this study, red samples showed higher anthocyanins content (0.122 ± 0.009 mg/g), which was significantly different from that in white samples (0.066 ± 0.010 mg/g). Similarly to ... more

Y. Zhou; X.X. Wu; Z. Zhang; Z.H. Gao
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Genome-wide analysis; KT/HAK/KUP family; Potassium transporter; Prunus persica

The KT/HAK/KUP family members encoding high-affinity potassium (K+) transporters mediate K+ transport across the plasma membranes of plant cells to maintain plant normal growth and metabolic activities. In this paper, we identified 16 potassium transporter genes in the peach (Prunus persica) using the Hidden Markov model scanning strategy and searching the ... more

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Fruit; Gene expression profiling; Gene Expression Regulation, Plant; Mutation; Prunus persica; Transcriptome

Fruit ripening is a complex developmental process, the details of which remain largely unknown in fleshy fruits. In this paper, the fruit flesh of two peach varieties, "Zhongyou9" (a nectarine; Prunus persica L. Batsch) and its mutant "Hongyu", was analyzed by RNA-seq technology during two stages of ripening at 20-day intervals. One hundred and eighty significant upregulated and two hundred ... more

H.F. Pan; Y. Sheng; Z.H. Gao; H.L. Chen; Y.J. Qi; X.K. Yi; G.H. Qin; J.Y. Zhang
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Acclimatization; Cold-Shock Response; Flowers; Genes, Essential; Genes, Plant; Genetic markers; Genotype; Genotyping Techniques; Plant breeding; Polymerase chain reaction; Prunus persica; Reference Standards

Selecting and validating reference genes are the first steps in studying gene expression by reverse transcriptase-quantitative polymerase chain reaction (RT-qPCR). The present study aimed to evaluate the stability of five reference genes for the purpose of normalization when studying gene expression in various cultivars of Prunus persica with different chilling requirements. Flower bud tissues ... more

N. Marini; C.B. Bevilacqua; M.V. Büttow; M.C.B. Raseira; S. Bonow
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Cowpea; Drought tolerance; Multivariate analysis; Recurrent selection; Vigna unguiculata

Vigna unguiculata (L.) Walp (cowpea) is a food crop with high nutritional value that is cultivated throughout tropical and subtropical regions of the world. The main constraint on high productivity of cowpea is water deficit, caused by the long periods of drought that occur in these regions. The aim of the present study was to select elite cowpea genotypes with enhanced drought ... more

C.C. Sousa; K.J. Damasceno-Silva; E.A. Bastos; M.M. Rocha
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interspecific hybrid; Modified location model; Multivariate analysis; Plant breeding

The Ward-MLM procedure was used to evaluate genetic variation in four backcross progenies and in their parents, hybrid F1 HD13 and donor parent Passiflora sublanceolata. Sixteen quantitative descriptors and five qualitative characteristics of relevance to ornamental flower production were assessed. Using the pseudo-F and pseudo-T² criteria, we identified four groups among these plants ... more

C.A.F. Melo; M.M. Souza; A.G.R. Sousa; A.P. Viana; E.A. Santos
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Correlations between traits; Genetic divergence; Multivariate analysis; Plant breeding

The aim of this study was to use multivariate methods and Pearson and partial correlations to disregard phenotypic characteristics that contribute little to differentiation between Brachiaria ruziziensis genotypes. Eighty-one genotypes of B. ruziziensis were assessed in completely randomized blocks with three replications. Ten phenotypic characteristics were assessed: ... more

B.A. Rezende; C.B. Ribeiro; D.H.L. Teixeira; F.M.A. Gonçalves; S. Sobrinho; B.A. Rezende; C.B. Ribeiro; D.H.L. Teixeira; F.M.A. Gonçalves; S. Sobrinho; B.A. Rezende; C.B. Ribeiro; D.H.L. Teixeira; F.M.A. Gonçalves; S. Sobrinho
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Germplasm; Glycine max; Multivariate analysis; Plant introduction

Owing to the narrow genetic basis of soybean (Glycine max), the incorporation of new sources of germplasm is indispensable when searching for alleles that contribute to a greater diversity of varieties. The alternative is plant introduction, which may increase genetic variability within breeding programs. Multivariate techniques are important tools to ... more

M.B. Marconato; E.M. Pereira; F.M. Silva; E.H. Bizari; J.B. Pinheiro; A.O. Mauro; S.H. Unêda-Trevisoli; M.B. Marconato; E.M. Pereira; F.M. Silva; E.H. Bizari; J.B. Pinheiro; A.O. Mauro; S.H. Unêda-Trevisoli
11/21/2016
Coffea arabica; Genetic divergence; Multivariate analysis; Plant breeding

In a coffee plantation of a coffee ‘Acaiá’ cultivar (Coffea arabica), on the Midwest of Minas Gerais in Capitólio city, a different kind of coffee tree was found (1989), possibly due to a mutation. It presented larger leaves and grains than those of conventional coffee trees and was named as “Big Coffee VL.” The aim of this study was to estimate the ... more

J.A. Silva; S.P. Carvalho; A.T. Bruzi; R.J. Guimarães; L.L. Oliveira; L.C. Simões; J.A. Silva; S.P. Carvalho; A.T. Bruzi; R.J. Guimarães; L.L. Oliveira; L.C. Simões
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Brazil; Breeding; Crosses, Genetic; Fusarium; Genetic variation; Genotype; Multivariate analysis; Plant Diseases; Tracheophyta

The multivariate analyses are useful tools to estimate the genetic variability between accessions. In the breeding programs, the Ward-Modified Location Model (MLM) multivariate method has been a powerful strategy to quantify variability using quantitative and qualitative variables simultaneously. The present study was proposed in view of the dearth of information about popcorn breeding ... more

R.N.F. Kurosawa; A.T. do Amara Junior; F.H.L. Silva; D. Santos; M. Vivas; S.H. Kamphorst; G.F. Pena

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