Research Article

Related GMR Articles

Abiotic stress; Drought tolerance; Plant breeding; Sorghum bicolor

Sorghum grain yield can be significantly affected by climatic changes, especially drought and high temperature. The purpose of this study was to evaluate hybrids of grain sorghum grown under normal irrigation conditions or water stress in order to select those likely to be more tolerant of drought. Forty-nine hybrids were grown in a randomized block design experiment, with three ... more

C.B. Menezes; D.C. Saldanha; C.V. Santos; L.C. Andrade; M.P.Mingote Júlio; A.F. Portugal; F.D. Tardin
Arabidopsis thaliana; Avicennia schaueriana; RNA and DNA extraction; Sorghum bicolor; Theobroma cacao

Determination of gene expression is an important tool to study biological processes and relies on the quality of the extracted RNA. Changes in gene expression profiles may be directly related to mutations in regulatory DNA sequences or alterations in DNA cytosine methylation, which is an epigenetic mark. Correlation of gene expression with DNA sequence or epigenetic mark polymorphism is ... more

R.R. Oliveira; A.J.C. Viana; A.C.E. Reátegui; M.G.A. Vincentz
Correlation; Ethanol production; Path analysis; Sorghum bicolor

Sweet sorghum has considerable potential for ethanol production due to its succulent stalks that contain directly fermentable sugars. Since many traits need to be considered in the selection process to breed superior cultivars for ethanol production, then correlations between the traits might be of use to help the breeder define optimal improvement strategies. The aim of this study was to ... more

G.M.R. Lombardi; J.A.R. Nunes; R.A.C. Parrella; D.H.L. Teixeira; A.T. Bruzi; N.N.L. Durães; T.G. Fagundes
Complementarity method; Ethanol; Genotype x environment interaction; Multi-environment trial; Sorghum bicolor

Sweet sorghum has considerable potential for ethanol and energy production. The crop is adaptable and can be grown under a wide range of cultivation conditions in marginal areas; however, studies of phenotypic stability are lacking under tropical conditions. Various methods can be used to assess the stability of the crop. Some of these methods generate the same basic information, whereas ... more

U.J. de Figueiredo; J.A.R. Nunes; R.Ada C. Parrella; E.D. Souza; A.R. da Silva; B.M. Emygdio; J.R.A. Machado; F.D. Tardin
Cultivars; Genetic diversity; Random amplified polymorphic DNA; Sorghum bicolor

The genetic diversity of Saudi locally growing sorghum (Sorghum bicolor) cultivars has not been thoroughly characterized. To understand the genomic patterns of diversification in Saudi sorghum cultivars (N = 7), random amplified polymorphic DNA (RAPD) was used as a rapid, inexpensive method for providing information regarding genomic variability below the species level. Six ... more

S.O. Bafeel
Genotypes x environment interaction; Grain sorghum; Sorghum bicolor

The aim of this study was to identify sorghum hybrids that have both high yield and phenotypic stability in Brazilian environments. Seven trials were conducted between February and March 2011. The experimental design was a randomized complete block with 25 treatments and three replicates. The treatments consisted of 20 simple pre-commercial hybrids and five witnesses of grain sorghum. ... more

P.E. Teodoro; J.E.Almeida Filho; R.F. Daher; C.B. Menezes; M.J. Cardoso; V.P.C. Godinho; F.E. Torres; F.D. Tardin; P.E. Teodoro; J.E.Almeida Filho; R.F. Daher; C.B. Menezes; M.J. Cardoso; V.P.C. Godinho; F.E. Torres; F.D. Tardin
Abiotic stress; Drought tolerance; Plant breeding; Sorghum bicolor

Drought stress is a serious obstacle for crop production, especially in arid and semi-arid areas of the world. Sorghum is a useful crop to grow in areas with erratic, poorly distributed or inadequate rainfall. To help determine the best alternatives, we evaluated 30 sorghum cultivars with and without water stress in the post-flowering plant stage. The work was ... more

P.S.C. Batista; A.J. Carvalho; A.F. Portugal; E.A. Bastos; M.J. Cardoso; L.G. Torres; M.P.Mingote Júlio; C.B. de Menezes
Contrasting genotypes; High-affinity Pi transporters; Northern analysis; Pi-use efficiency; Sorghum bicolor

Phosphate (Pi) availability is highly limited in the acidic soils of the Brazilian savannahs (Cerrado) used for sorghum cultivation. Although several sorghum genotypes contrasting for P use-efficiency have been developed from natural genetic variants, the Pi transport pathway mechanisms in these plants remain unclear. High-affinity Pi transporters play a pivotal ... more

M.J.V. de Vasconcelos; R.E. Schaffert; M.F. de Oliveira; A. Jain; J.E.F. Figueiredo; K.G. Raghothama
Biofortification; Brazil; cluster analysis; Genetic variation; Genotype; Minerals; Nutritive Value; Phaseolus; Phenotype; Plant breeding; seeds

The development of common bean cultivars with high technological quality that are biofortified with minerals, is required to meet the demand for food with health benefits. The objectives of this study were to evaluate whether common bean genotypes differ in terms of technological and mineral biofortification traits, to study the correlations between these characters, to analyze the genetic ... more

deM. Steckling; N.D. Ribeiro; F.D. Arns; H.C. Mezzomo; M.T.D.F. Possobom
Amino acids; Biofortification; Breeding; nutritional profile of grains; Zea mays

The growing demand for maize creates a challenge for breeders; they need to constantly develop higher yielding and higher quality genotypes. We estimated the most relevant genetic parameters, along with heterosis and variance components. A multivariate approach was used in order to define profiles of narrow sense heritability for yield and nutritional components in ... more

I.R. Carvalho; A.J. de Pelegrin; M. Ferrari; V.J. Szareski; T.C. da Rosa; V.F. de Oliveira; J.F. Hoffmann; M. Nardino; G.G. Conte; F.C. Chaves; V.Q. de Souza; A.C. de Oliveira; L.C. da Maia