Research Article

Related GMR Articles

03/28/2019
Biofortification; Diallel; Phaseolus vulgaris; Plant breeding

The objectives of this study were to select promising common bean populations for high iron and zinc contents (FeC and ZnC), seed yield and 100-seed weight, to study the genetic control of these traits and to select parents for high FeC and ZnC based on a diallele analysis. Fifteen populations were obtained from crosses among six parents selected for high FeC and ... more

P.R.C. Di Prado; L.C. Faria; T.L.P.O. Souza; L.C. Melo; P.G.S. Melo; H.S. Pereira
04/30/2019
Coffea arabica; Genetic variability; Nutritional efficiency; Plant breeding

Extensive use of nitrogen fertilizers in coffee crops increases production costs and environmental pollution. Developing cultivars more efficient in nitrogen (N) utilization could contribute to reduce the need for N fertilization and promote sustainable production. We evaluated the variation in production characteristics among 20 coffee cultivars grown in nutrient ... more

W.M. Moura; P.M.R. Cardoso; G.A. Gravina; V.S. Cavalcante; A.W. Pedrosa; T.C. Ferreira
05/24/2019
Berries; Heritability; Plant breeding; RELM/BLUP; Rubus idaeus; Small fruits

Raspberry is a berry crop of great economic importance, and its cultivation has expanded worldwide. Information on the genetic parameters of raspberry for use in breeding programs is currently limited. We used Restricted Maximum Likelihood (REML) and Best Linear Unbiased Prediction (BLUP) to estimate variance components and predict genetic parameters for ... more

P.M. Marchi; I.R. Carvalho; D. Höhn; B. Carra; V.J. Szareski; M. Dini; M. Vizzotto; L.E.C. Antunes
06/30/2019
Genetic divergence; Phaseolus vulgaris; Plant breeding

The common bean is widely distributed throughout Brazil and within Mato Grosso state. It has wide genetic variability and adaptability to various environmental conditions. We evaluated the genetic divergence and agronomic performance of common bean genotypes in order to initiate a bean breeding program in the region of Cáceres, MT. We included 58 genotypes (40 ... more

P.R.Jdos Santos; M.A.A. Barelli; R. Felipin-Azevedo; V.P. da Silva; T.A.S. Gilio; T.C. de Oliveira; D.L. Gonçalves; J.P. Poletine
08/31/2019
Glycine max; Horizontal resistance; Microsatellite markers; Phakopsora pachyrhizi; Plant breeding; Quantitative trait loci

Soybean rust is considered a highly aggressive disease in soybean crops. Most research has focused on obtaining resistant genotypes based on dominant or recessive alleles, which provide vertical resistance. The identification of promising crosses that may be used to develop genotypes with horizontal resistance from IAC 100 may help to increase the longevity of the ... more

F.C. Juliatti; K.R.C. Santos; T.P. Morais; B.C.M. Juliatti
09/25/2019
Glycine max; Grain yield; Path analysis; Plant breeding

An option into guide selection strategies in soybean breeding programs is to investigate associations between the main traits studied by breeders. A question that is faced is the possible influence of genotype x environment (GE) interactions on correlations among traits. Path analysis allows, in addition to measuring correlation, a more detailed study of cause / ... more

D.R. Pereira; A.T. Bruzi; J.A.R. Nunes; J.P.S. Carvalho; E.V. Zambiazzi; G.S. Gesteira
11/30/2019
Bayesian inference; Genetic improvement; Plant breeding; Statistical methods

We compared two statistical methodologies applied to genetic and genomic analyses of categorical traits. The first one consists of a Bayesian approach to the Bayesian Linear Mixed Model (BLMM), which addresses the statistical problems of genomic prediction. The second methodology, called Bayesian Generalized Linear Mixed Model (BGLMM) is similar, but it is used ... more

L.S. Silveira; M. Filho; C.F. Azevedo; E.C. Barbosa; M.D.V. Resende; E.K. Takahashi
03/30/2020
Plant breeding; Selection indexes; Solanum lycopersicum

Tomatoes are an important crop in Brazil. In advanced stages of breeding programs, the capacity to select or reject tomato lines becomes complex. We selected tomato lines comparing different selection strategies. We evaluated 115 advanced tomato lines from the Tomato Germplasm bank of the Federal University of Uberlândia. The following characteristics were ... more

R.R. Finzi; G.M. Maciel; J.V.M. Peixoto; M.P. Momesso; H.G. Peres; M.F. Silva; L.D.Cabral Neto; D.A. Gomes; M.P.C. Martins
04/30/2021
Hybrids; Plant breeding; SSR; Umbu tree

The umbu tree (Spondias tuberosa) is endemic to the Brazilian semiarid region. This species is not cultivated and commercialized fruits are a result of extrativism; consequently little has been done to develop new and more productive cultivars. Hybrids of different accessions are a result of natural open pollination, so identifying putative male parents ... more

V.N. Santos; A.E.S. Costa; C.A.F. Santos
05/31/2021
Plant breeding; SSR; Umbu tree

The umbu tree (Spondias tuberosa) is one of the best known plants of the Brazilian semi-arid region; it has great potential for the fruit market due to excellent consumer acceptance. This tree is not presently cultivated; fruit commercialization is based on extrativism. Consequently, there has been little research on the genetics of this species. Our ... more

V.N. Santos; R.N.C.S. Gama; C.A.F. Santos

Pages