Research Article

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06/21/2016
Antimitotic; Flow cytometry; Manihot esculenta Crantz; Polyploidy; Tissue culture

Polyploid induction has been used for plant breeding to produce bigger and more robust plants than diploid types. The present study aimed to develop a methodology for in vitro induction of polyploidy in cassava. Apical and lateral microcuttings from the BRS Formosa variety were treated with six oryzalin concentrations for 24 and 48 h. The same methodology was used for colchicine ... more

deJ. da S. de Carvalho; V.B. Gomes; daS. Souza; F.F. Aud; J.A. Santos-Serejo; E.J. Oliveira; deJ. da S. de Carvalho; V.B. Gomes; daS. Souza; F.F. Aud; J.A. Santos-Serejo; E.J. Oliveira
09/19/2016
Breeding; Forage; Meiosis; Pollen grain; Polyploidy

The genus Brachiaria contains species that have great economic importance in the Brazilian agricultural sector, as they enable cattle ranching on acid and poor soils with species that are resistant to spittlebugs and form crop-livestock-forest integration systems. The genus mainly consists of tetraploid (2n = 4x = 36) and apomictic species such as B. decumbens and B ... more

C.M.P. Paula; K.G. Figueiredo; S. Sobrinho; F.R.G. Benites; L.C. Davide; V.H. Techio; C.M.P. Paula; K.G. Figueiredo; S. Sobrinho; F.R.G. Benites; L.C. Davide; V.H. Techio
05/23/2016
Abiotic stress; Medicago sativa L.; Peroxidase; Transgenic Arabidopsis thaliana

Peroxidases (PODs) are enzymes that play important roles in catalyzing the reduction of H2O2 and the oxidation of various substrates. They function in many different and important biological processes, such as defense mechanisms, immune responses, and pathogeny. The POD genes have been cloned and identified in many plants, but their function in alfalfa (Medicago ... more

K. Teng; G.Z. Xiao; W.E. Guo; J.B. Yuan; J. Li; Y.H. Chao; L.B. Han; K. Teng; G.Z. Xiao; W.E. Guo; J.B. Yuan; J. Li; Y.H. Chao; L.B. Han
05/06/2016
Abiotic stress; Root and shoot traits; WinRHIZO; Zea mays var. everta

Increasing phosphorus use efficiency in agriculture is essential for sustainable food production. Thus, the aims of this study were: i) to identify phosphorus use efficiency (PUE) in popcorn lines during the early plant stages, ii) to study the relationship between traits correlated with PUE, and iii) to analyze genetic diversity among lines. To accomplish this, 35 popcorn lines from ... more

O.J.A.P. Santos; L.S.A. Gonçalves; C.A. Scapim; deS.M. de Sousa; C.R. Castro; V.Y. Baba; A.L.M. de Oliveira; O.J.A.P. Santos; L.S.A. Gonçalves; C.A. Scapim; deS.M. de Sousa; C.R. Castro; V.Y. Baba; A.L.M. de Oliveira
08/19/2016
Jatropha curcas; Plant nutrition; REML/BLUP

The aim of this study was to screen physic nut (Jatropha curcas) genotypes that differ in their phosphorous (P) use, using mixed models. The experiment was conducted in a greenhouse located in the experimental area of the Centro de Ciências Agrárias of the Universidade Federal do Espírito Santo, in Alegre, ES, Brazil. The experiment was arranged in a randomized block design, ... more

P.E. Teodoro; B.G. Laviola; L.D. Martins; J.F.T. Amaral; W.N. Rodrigues; P.E. Teodoro; B.G. Laviola; L.D. Martins; J.F.T. Amaral; W.N. Rodrigues
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Genetic gain; Genetic parameters; REML/BLUP

The aim of this study was to estimate genetic parameters via mixed models and simultaneously to select Jatropha progenies grown in three regions of Brazil that meet high adaptability and stability. From a previous phenotypic selection, three progeny tests were installed in 2008 in the municipalities of Planaltina-DF (Midwest), Nova Porteirinha-MG (Southeast), and Pelotas-RS (South). We ... more

P.E. Teodoro; L.L. Bhering; R.D. Costa; R.B. Rocha; B.G. Laviola; P.E. Teodoro; L.L. Bhering; R.D. Costa; R.B. Rocha; B.G. Laviola
08/27/2018
AMM; GGE; REML/BLUP; strategic establishment; Triticumaestivum

This work was aimed at determining stability and adaptability through Additive Main Effects and Multiplicative Interaction (AMMI) and Genotype Main Effects and Genotype Environment Interaction (GGE) methodologies, as well as to estimate and predict Restricted Maximum Likelihood/Best Linear Unbiased Prediction (REML/BLUP) parameters and employ them in multivariate models using wheat genotypes ... more

V.J. Szareski; I.R. Carvalho; K. Kehl; A.M. Levien; T.C. da Rosa; M.H. Barbosa; G.H. Demari; J.R. Pimentel; C. Troyjack; V.Q. de Souza; E.G. Martinazzo; F.A. Villela; T. Pedó; T.Z. Aumonde
01/31/2021
genetic breeding; Passion fruit; Passion fruit woodiness disease; REML/BLUP; Resistance

The woodiness disease induced by the Cowpea aphid-borne mosaic virus (CABMV) is regarded as a limiting factor for passion fruit production. We estimated genetic parameters for resistance and agronomic performance-related traits and selected genotypes resistant to CABMV in segregating populations of passion fruit. The experiment was a randomized-block ... more

S.C. Preisigke; A.P. Viana; E.A. Santos; P.Rdos Santos; N.R. Cavalcante; M. Ambrósio; J.Cde O. Freitas; R. Rodrigues
03/31/2021
Breeding tropical fruit; REML/BLUP; Viruses

The cultivation of passion fruit occupies an important place in Brazilian fruit culture; however, there have been successive declines in production. The main cause of this retraction in production is an increase in the incidence of Cowpea aphid-borne mosaic virus. This virus can cause severe deformation of the fruit and make passion fruit ... more

R.F. Vidal; A.P. Viana; daC. Preisigke; N.R. Cavalcante; D.H.Gonçalves Júnior; D.S. Mendes
07/17/2015
Breeding; Germplasm bank; Pepper; Polymorphism; Simple sequence repeat

In order to support further genetic, diversity, and phy­logeny studies of Capsicum species, the transferability of a Capsicum annuum L. simple sequence repeat (SSR) microsatellite set was ana­lyzed for C. frutescens L. (“malagueta” and “tabasco” peppers) and C. chinense Jacq. (smell peppers, among other types). A total of 185 SSR primers were evaluated ... more

S.I.C. Carvalho; C.F. Ragassi; I.B. Oliveira; Z.P.S. Amaral; F.J.B. Reifschneider; F.G. Faleiro; G.S.C. Buso

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