Research Article

Related GMR Articles

10/16/2018
Coffee; Diversity; Mineral nutrition; Water deficit

We examined the effect of water availability on the nutritional balance of 15 genotypes of the clonal cultivar “Conilon BRS Ouro Preto” of Coffea canephora grown in two contrasting environments in terms of water availability. Biomass production and nutritional balance parameters, based on the deviance from the standard ratio among nutrients for the species ... more

L.C.T. Starling; L.D. Martins; W.N. Rodrigues; T.M. Reinicke; J.F.Tdo Amaral; M.A. Tomaz; M.C. Espindula
10/27/2009
CABMV; genetic breeding; Genetic diversity; Germplasm characterization; Passion fruit; Resistance
C.B.M. Cerqueira-Silva
02/01/2011
Fingerprint; Genetic resources; Germplasm characterization; SSR makers

Dry beans are considered to be a crop of great socio-economic importance, because they are an inexpensive source of nutrients and because their cultivation requires considerable manual labor. Studies of genetic diversity have been very important for genetic improvement programs, because they give parameters for the identification of genitors that can provide large heterosis effects and ... more

P.D.S. Cabral; T.C.B. Soares; A.B.P. Lima; F.D. de Miranda; F.B. Souza; L.S.A. Gonçalves
02/18/2010
Categorical variables; Germplasm characterization; Plant descriptors; Quantitative data; Ward-MLM procedure

Capsicum species are very important in Brazil because of economic, cultural and biological factors, and the country is considered to be a diversity center for this genus. Collection and maintenance of the genetic diversity in Capsicum are important to avoid genetic erosion. Besides the identification of species, the characterization and evaluation of accessions ... more

C.P. Sudré; L.S.A. Gonçalves; R. Rodrigues; A.Tdo Amaral Júnior; E.M. Riva-Souza; dosS. Bento
10/31/2014
Coefficient of parentage; Genetic diversity; Germplasm characterization; Joint analysis; Sugarcane varieties

The success of the development of new sugarcane varieties is associated with the ability to correctly select the genitor. The aim of this study was to evaluate the genetic diversity between 113 clones and sugarcane varieties using the Ward-modified location model procedure with added information about the coefficient of parentage and endogamy. In this study, data was used from 100 ... more

B.P. Brasileiro; C.D. Marinho; P.M.A. Costa; L.A. Peternelli; M.D.V. Resende; D.E. Cursi; H.P. Hoffmann; M.H.P. Barbosa
01/17/2014
Genetic diversity; Germplasm characterization; Multivariate analysis; Saccharum spp

We evaluated the genetic diversity of 77 clones of sugarcane used in crosses made by the Brazilian interuniversity network for the development of the sugar/energy sector (RIDESA) breeding program. Characterization of the genotypes was carried out at the ratoon stage, based on eight morphological traits and seven agronomic traits. Diversity analysis was carried out beginning with the Ward ... more

B.P. Brasileiro; C.D. Marinho; P.M.A. Costa; E.F.A. Moreira; L.A. Peternelli; M.H.P. Barbosa
12/28/2015
Germplasm characterization; Molecular markers; Passion flower; Principal coordinate analysis

Inter simple sequence repeat (ISSR) molecular markers were developed and used to investigate interspecific genetic variation in 25 wild species of Passiflora preserved in an active germplasm bank (BAG-Passifloras); intraspecific diversity was also analyzed in P. cincinnata accessions. Of 31 primers tested, 20 identified polymorphic loci with a total of 331 bands, ... more

A.G.R. Sousa; M.M. Souza; C.A.F. Melo; G.A. Sodré
07/27/2015
Brazilian rice cultivars; differential gene expression; Functional annotation; Water deficit

Gene expression related to drought response in the leaf tissues of two Brazilian upland cultivars, the drought-tolerant Douradão and the drought-sensitive Primavera, was analyzed. RNA-seq identified 27,618 transcripts in the Douradão cultivar, with 24,090 (87.2%) homologous to the rice database, and 27,221 transcripts in the Primavera cultivar, with 23,663 (86.9%) homologous to the rice ... more

R.D.D. Silveira; F.R.M. Abreu; S. Mamidi; P.E. McClean; R.P. Vianello; A.C. Lanna; N.P. Carneiro; C. Brondani
07/03/2015
Angular leaf spot; common bean; Parasexual cycle; Phaeoisariopsis griseola; RAPD markers

The fungus Pseudocercospora griseola is the causal agent of angular leaf spot, a common bean (Phaseolus vulgaris L.) disease. The successful development of angular leaf spot-resistant cultivars depends on understanding the levels of variability in pathogen populations. P. griseola shows great pathogenic and genetic variation using inoculation on differential ... more

K.J. Damasceno-Silva; E.A. Souza; C.N.S. Freire; F.H. Ishikawa
06/10/2016
Biofortification; common bean; Elite lines; Line by environment interaction

One of the current focus of common bean breeding programs in Brazil is to increase iron (FeC) and zinc content (ZnC) in grains. The objectives of this study were to estimate genetic parameters for FeC and ZnC in common bean, verify the need for conducting multi-site evaluation tests, identify elite lines that combine high FeC and ZnC with good adaptability, stability, and agronomic ... more

S.M. Martins; P.G.S. Melo; L.C. Faria; T.L.P.O. Souza; L.C. Melo; H.S. Pereira; S.M. Martins; P.G.S. Melo; L.C. Faria; T.L.P.O. Souza; L.C. Melo; H.S. Pereira