Research Article

Related GMR Articles

06/29/2017
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
09/27/2017
Analysis of variance; Bertholletia; Dimensional Measurement Accuracy; Fruit; Genetic variation; Genotype; Phenotype; Plant breeding; Principal component analysis; 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 Brazil nut tree (Bertholletia excelsa) ... more

A.B. Baldoni; H. Tonini; F.D. Tardin; S.C.C. Botelho; P.E. Teodoro
2/16/2017
Camellia; cluster analysis; DNA, Plant; Genetic variation; Genotype; Microsatellite Repeats; Phylogeny

Camellia japonica produces different color and bigger flowers, widely being used for gardening green in southern China. However, cultivars were introduced from different regions, but their origin and pedigree information is either not available poorly documented, causing problems in authentication. Many low-yield trees in Camellia oleifera forests have been used as stocks for grafting C. ... more

Y. Zhao; C.J. Ruan; G.J. Ding; S. Mopper
4/13/2017
Genetic markers; Genotype; Phylogeny; Polymorphism, Genetic; Vitis

Viticulture presents a number of economic and social advantages, such as increasing employment levels and fixing the labor force in rural areas. With the aim of initiating a program of genetic improvement in grapevine from the State University of the state of Rio de Janeiro North Darcy Ribeiro, genetic diversity between 40 genotypes (varieties, rootstock, and species of different subgenera) ... more

A.F. da Costa; P.E. Teodoro; L.L. Bhering; F.D. Tardin; R.F. Daher; W.F. Campos; A.P. Viana; M.G. Pereira
07/06/2017
Capsicum; Fruit; Genetic markers; Genotype; Microsatellite Repeats; Polymorphism, Genetic; Quantitative Trait, Heritable

Capsicum peppers are native to the Americas, with Brazil being a significant diversity center. Capsicum baccatum accessions at Instituto Federal (IF) Goiano represent a portion of the species genetic resources from central Brazil. We aimed to characterize a C. baccatum working collection comprising 27 accessions and 3 commercial cultivars using morphological traits and molecular markers to ... more

A.L.A. Martinez; J.S.P. Araújo; C.F. Ragassi; G.S.C. Buso; F.J.B. Reifschneider
1/23/2017
cluster analysis; Genetic markers; Genetic variation; Lonicera; Microsatellite Repeats

Inter-simple sequence repeats (ISSRs) were used to analyze the genetic diversity of 21 accessions obtained from four provinces in China, Shandong, Henan, Hebei, and Sichuan. A total of 272 scored bands were generated using the eight primers previously screened across 21 accessions, of which 267 were polymorphic (98.16%). Genetic similarity coefficients varied from 0.4816 to 0.9118, with an ... more

H.Y. He; D. Zhang; H. Qing; Y. Yang
12/02/2016
Animals; Brazil; Breeding; Cattle; Gene frequency; Genetic markers; Leptin; Polymorphism, Single Nucleotide; Promoter Regions, Genetic; Red Meat; Sequence Analysis, DNA

Brazil is the world's largest producer of beef cattle; however, the quality of its herds needs to be improved. The use of molecular markers as auxiliary tools in selecting animals for reproduction with high pattern for beef production would significantly improve the quality of the final beef product in Brazil. The leptin gene has been demonstrated to be an excellent candidate gene for bovine ... more

R.C. Guimarães; J.S.N. Azevedo; S.C. Corrêa; J.E.G. Campelo; E.M. Barbosa; E.C. Gonçalves; S. Filho
2/16/2017
Animals; Brazil; Conservation of Natural Resources; Female; Gene frequency; Genotype; male; Microsatellite Repeats; Sexual Behavior, Animal; Turtles

The aim of the present study was to investigate the reproductive behavior of the giant Amazon River turtle (Podocnemis expansa) in the Amazon. This was carried out by estimating the degree of polymorphism in five DNA microsatellites in a sample of 359 hatchlings from 12 nests in the Mamirauá Sustainable Development Reserve in the municipality of Tefé, state of Amazonas, Brazil. An analysis of ... more

C. Fantin; J. Morais; R. Botero-Arias; C. Araújo; C. Camillo; I.P. Farias
3/08/2017
Adrenocorticotropic Hormone; Adult; Alleles; ATP Binding Cassette Transporter, Subfamily B; Gene frequency; Genotype; Healthy Volunteers; Humans; Hydrocortisone; Hypothalamo-Hypophyseal System; Japan; male; Pituitary-Adrenal System; Polymorphism, Single Nucleotide

In vitro studies have shown that multidrug resistance protein 1 (MDR1) has an affinity for cortisol; however, in vivo association studies on the relationship between MDR1 gene polymorphisms and blood cortisol levels have produced inconsistent results. Therefore, we examined the effects of the C3435T polymorphism of the MDR1 gene on blood levels of hypothalamus-pituitary-adrenal (HPA) axis ... more

A. Suzuki; Y. Matsumoto; T. Shirata; K. Goto; M. Enokido; K. Otani
05/31/2017
Bromeliaceae; Gene Amplification; Gene frequency; Heterozygote; Inbreeding; Microsatellite Repeats; Polymorphism, Genetic

The Alcantarea patriae is a Bromeliaceae endemic to the inselbergs of the Atlantic Forest. This taxon, described in the year of 2007 by Versieux & Wanderley, presents restricted and fragmented distribution outside conservation units. Studies to evaluate the genetic structure of its populations can contribute to the conservation and management strategies for the species. In this study, 31 ... more

A.G. Pereira; U.C.S. Bernardi; V.C. Manhães; R.S. Ferreira; F.D. Miranda

Pages