Research Article

Related GMR Articles

9/21/2017
Alleles; Cotton Fiber; Genotype; Gossypium; Hybridization, Genetic; Plant breeding; Polymorphism, Genetic; Quantitative Trait, Heritable

Final cotton quality is of great importance, and it depends on intrinsic and extrinsic fiber characteristics. The objective of this study was to estimate general (GCA) and specific (SCA) combining abilities for technological fiber traits among six upland cotton genotypes and their fifteen hybrid combinations, as well as to determine the effective genetic effects in controlling the traits ... more

D.R. Queiroz; F.J.C. Farias; J.J.V. Cavalcanti; L.P. Carvalho; D.G. Neder; L.S.S. Souza; F.C. Farias; P.E. Teodoro
2/23/2017
Capsicum; Cytoplasm; Fertility; Flowers; Genes, Plant; Genetic markers; Genotype; Hybridization, Genetic; Meristem; Mutation; Phenotype; Plant breeding; Plant Infertility; Reproducibility of Results; seeds

Cytoplasmic male sterility (CMS) in pepper is a better way to produce hybrid seeds compared to manual production. We used the two sequence characterized amplified region (SCAR) markers (CRF-SCAR and CMS-SCAR) in CMS pepper, to identify the genotype. We assembled two CMS yellow bud mutants (YBM; YBM12-A and YBM12-B). This mutation in leaf color is controlled by a single dominant nuclear gene. ... more

G.S. Sun; Z.L. Dai; P.W. Bosland; Q. Wang; C.Q. Sun; Z.C. Zhang; Z.H. Ma
5/25/2017
Acclimatization; Cold-Shock Response; Flowers; Genes, Essential; Genes, Plant; Genetic markers; Genotype; Genotyping Techniques; Plant breeding; Polymerase chain reaction; Prunus persica; Reference Standards

Selecting and validating reference genes are the first steps in studying gene expression by reverse transcriptase-quantitative polymerase chain reaction (RT-qPCR). The present study aimed to evaluate the stability of five reference genes for the purpose of normalization when studying gene expression in various cultivars of Prunus persica with different chilling requirements. Flower bud tissues ... more

N. Marini; C.B. Bevilacqua; M.V. Büttow; M.C.B. Raseira; S. Bonow
5/31/2017
Fabaceae; Genotype; Microsatellite Repeats; Plant breeding; Polymorphism, Genetic; Quantitative Trait, Heritable

Desmanthus is a genus of forage legumes with high nutritional value, productive potential, and ability to obtain nitrogen in association with diazotrophic bacteria. The use of accurate techniques for genotype identification and characterization is essential for breeding programs. Morphological markers are widely used to know the genetic diversity and the molecular markers are fundamental in ... more

J.C. Costa; G.G.M. Fracetto; F.J.C. Fracetto; M.V.F. Santos; M.A.Lira Júnior
5/31/2017
Jatropha; Microsatellite Repeats; Plant breeding; Polymorphism, Genetic; Seed Bank

Jatropha curcas L. is a highly promising oilseed for sustainable production of biofuels and bio-kerosene due to its high oil content and excellent quality. However, it is a perennial and incipiently domesticated species with none stable cultivar created until now despite genetic breeding programs in progress in several countries. Knowledge of the genetic structure and diversity of the species ... more

B.G. Díaz; D.M. Argollo; M.C. Franco; S.M. Nucci; W.J. Siqueira; D.M. de Laat; C.A. Colombo
6/29/2017
Fungi; Microsatellite Repeats; Plant breeding; Plant Immunity; Polymorphism, Genetic; Quantitative Trait, Heritable; Zea mays

Knowledge of genetic diversity among genotypes and relationships among elite lines is of great importance for the development of breeding programs. Therefore, the objective of this study was to evaluate genetic variability based on the morphoagronomic and molecular characterization of 18 elite popcorn (Zea mays var. everta) lines to be used by Universidade Estadual de Maringá breeding programs ... more

J.F.Dos Santos; C.A. Mangolin; M.F.P.S. Machado; C.A. Scapim; W. Giordani; L.S.A. Gonçalves
7/6/2017
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
8/17/2017
Hyptis; Microsatellite Repeats; Plant breeding; Polymorphism, Genetic

Hyptis pectinata, popularly known as 'sambacaitá' or 'canudinho', is a medicinal and aromatic species widely used in the Brazilian Northeast. In Sergipe, the excessive extraction of natural resources may reduce the genetic variability of native plants. Thus, molecular markers have frequently been applied to the characterization of genetic diversity as the basis for germplasm conservation and ... more

R.B. Feitosa-Alcantara; A.V.C. Silva; A.F. Blank; C.S. Almeida; S.V. Alvares-Carvalho; M.F. Arrigoni-Blank
12/19/2016
cluster analysis; Cold Temperature; DNA, Plant; Genetic markers; Microsatellite Repeats; Polymorphism, Genetic; Stress, Physiological; Zea mays

In this study, eight inbred maize lines with high or low tolerance to cold temperature were investigated using bulk segregant analysis (BSA). Genetic diversity and genetic relationships were investigated using 100 simple sequence repeat (SSR) markers linked to cold tolerance in maize. A total of 319 alleles were identified. Among these, 128 were high coldtolerant-specific alleles and 61 were ... more

M.Q.U. Farooqi; K.J. Sa; T.K. Hong; J.K. Lee
4/28/2017
Dipteryx; Gene frequency; Genetic markers; Genotype; High-Throughput Nucleotide Sequencing; Microsatellite Repeats; Polymorphism, Genetic; Sequence Analysis, DNA

The use of next-generation sequencing (NGS) technologies provides a great volume of genome sequence data even for non-model species. The development of microsatellite markers using these data is a relatively quick and easy process. Dipteryx alata Vogel (Fabaceae) is an arboreal species from the Cerrado biome and is considered an important plant genetic resource. Here, we report the development ... more

R.A. Guimarães; M.P.C. Telles; A.M. Antunes; K.M. Corrêa; C.V.G. Ribeiro; A.S.G. Coelho; T.N. Soares

Pages