Research Article

Related GMR Articles

2017 Jun 29
Adaptation, Physiological; environment; Gene-Environment Interaction; Genetic variation; Genotype; Plant breeding; Quantitative Trait, Heritable; Saccharum; Selection, Genetic

The recommendation of sugarcane clones depends on several factors, as the response or performance of the clones over different cuts or harvests. The clone by harvest interaction might be difficult to identify superior clones in the final stages of the sugarcane breeding program. Thus, the objective of this study was to investigate and describe the implications of the genotype by harvest ... more

D.N.A. Cabral; J.A.R. Nunes; P.D.S. Cabral; J. Zuchi; A.J. Raizer; T.O.M. De Paula
2017 Feb 08
Alleles; Brazil; Genetic variation; Genotype; Phenotype; Quantitative Trait, Heritable; Saccharum; Selection, Genetic; Time Factors

The aim of this study was to analyze sugarcane (Saccharum officinarum) biometric and technological data, obtained at different timepoints, using path analysis. The experiment was conducted in União, PI, Brazil, and evaluated 12 sugarcane genotypes (RB036066, RB9438, RB935744, RB021764, RB021754, RB021534, RB966229, RB977540, RB863129, and RB987935, and the varieties RB92579 and RB867515 as ... more

R.P. Barbosa; A. Neto; L.M. Gravina; G.A. Gravina; M.G.T. Portela; A.A.C. Bezerra
2017 May 25
Cellulose; Genotype; Plant breeding; Quantitative Trait, Heritable; Saccharum; Selection, Genetic; Sucrose

Sugarcane (Saccharum sp) is one of the most promising crops and researchers have sought for renewable alternative energy sources to reduce CO emission. The study of strategies, which allow breeders in the selection of superior genotypes for many traits simultaneously, is important. Therefore, the objectives of this study were: i) to apply path analysis to better understand the relationship ... more

L.A. Silva; P.E. Teodoro; L.A. Peixoto; C. Assis; K. Gasparini; M.H.P. Barbosa; L.L. Bhering
2016 Dec 02
DNA, Plant; Edible Grain; Genetic variation; Hordeum; Minerals; Plant breeding; Quantitative trait loci; Selection, Genetic

Mineral elements in barley (Hordeum vulgare) play an important physiological role in global human health. In this study, quantitative trait loci (QTLs) for concentration of nine mineral elements in barley grain and grass powder were detected in a population of 193 recombinant inbred lines of the barley cross Ziguangmangluoerling x Schooner and the parents. We observed large genetic variation ... more

Y.W. Zeng; J. Du; X.M. Yang; X.Y. Pu; L.X. Wang; J.Z. Yang; L.J. Du; T. Yang; S.M. Yang; Z.H. Sun
2017 Feb 23
Analysis of variance; Anthocyanins; China; Chromatography, High Pressure Liquid; cluster analysis; Color; Conservation of Natural Resources; Endangered species; Flowers; Genetic markers; Genetic variation; Magnolia; Microsatellite Repeats; Phenotype; Phylogeny; Pigmentation; Plant breeding; Species Specificity

A combination of phenotypic characterization and molecular markers may provide reliable information on new plant varieties and elucidate the conservation status of rare species. Five newly developed Magnolia wufengensis cultivars, an endangered plant species endemic to Hubei Province, China, possess more distinctive phenotypes than common Magnolia cultivars. With reference to a wild species ... more

L. Wang; A.H. Xiao; L.Y. Ma; F.J. Chen; Z.Y. Sang; J. Duan
2017 Mar 22
Computers; Fruit; Genetic variation; Genotype; Image Processing, Computer-Assisted; Phenotype; Plant breeding; Psidium; seeds

Digital image analysis of seeds has been used for the identification of cultivars, determination of seed color and mechanical damage, and classification of different seed sizes. The aim of the present study was to evaluate the efficiency of digital image analysis of seeds for the quantification of genetic diversity among genotypes of inbred guava (Psidium guajava L.) families. The SAS Mini ... more

W. Krause; A.P. Viana; N.R. Cavalcante; M. Ambrósio; E.A. Santos; H.D. Vieira
2017 Mar 22
Brazil; Crops, Agricultural; Crosses, Genetic; Genetic variation; Phaseolus; Plant breeding; Selection, Genetic

Common bean producers in Brazil tend to grow plants as upright as possible. Because the control of this trait involves a large number of genes, recurrent selection (RS) is the best approach for successful plant improvement. Because plant architecture (PA) is evaluated using scores and usually has high heritability, RS for PA is performed through visual selection in generation S. The aim of the ... more

L.A. Pereira; A.F.B. Abreu; I.C.Vieira Júnior; L.P.M. Pires; M.A.P. Ramalho
2017 Mar 22
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
2017 May 31
Analysis of variance; Annona; Data Interpretation, Statistical; Fruit; Genetic variation; Phenotype; Plant breeding; Quantitative Trait, Heritable

Repeatability studies on fruit species are of great importance to identify the minimum number of measurements necessary to accurately select superior genotypes. This study aimed to identify the most efficient method to estimate the repeatability coefficient (r) and predict the minimum number of measurements needed for a more accurate evaluation of soursop (Annona muricata L.) genotypes based ... more

C.F.B. Sánchez; P.E. Teodoro; S. Londoño; L.A. Silva; L.A. Peixoto; L.L. Bhering
2017 Jul 06
Fusarium; Gene Expression Regulation, Plant; Genetic markers; Genetic variation; Heat-shock proteins; Inbreeding; Lipoxygenase; maternal inheritance; Plant breeding; Plant Immunity; Plant Proteins; Selection, Genetic; Zea mays

In recent years, there has been a large incidence of fungi causing "ear rot" in maize in Brazil, the main fungus being Fusarium verticillioides. The most efficient and competitive alternative for control of this disease consists of using maize hybrids resistant to this pathogen. Thus, the aims of this study were to analyze the genetic variability of maize inbred lines in regard to resistance ... more

G.S. Pereira; R.G.V. Pinho; E.V.R.V. Pinho; L.P.M. Pires; L.A.Y.Bernar Junior; J.L.A. Pereira; M.P. Melo