Research Article

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08/07/2007
Correlation; Genetic; Growth; Heritability

(Co)variance components and genetic parameters were estimated for body weights of a Romosinuano herd located in Sinú Valley, Cordoba, Colombia. Restricted maximum likelihood methods were used with a univariate animal model for birth weight, weaning weight (270 days), 16-month weight (480 days), weaning daily gain, and post-weaning daily gain. Models included random animal direct and maternal ... more

R.M. Sarmiento; J.P. Garcia
06/11/2010
Breast cancer; Drug therapy; Genetic; Glutathione transferase; Polymorphism

The glutathione S-transferase (GST) family consists of phase II detoxification enzymes that catalyze the conjugation of toxic substances, such as chemotherapeutic agents, to glutathione. We examined whether GSTT1/GSTT1“null”, GSTM1/GSTM1“null” and GSTP1Ile105Ile/GSTP1Ile105Val polymorphisms are associated with different response rates to neoadjuvant ... more

A.L. Oliveira; F.F.O. Rodrigues; R.E. Santos; T. Aoki; M.N. Rocha; C.A. Longui; M.B. Melo
01/22/2014
Breast cancer; Drug therapy; Genetic; Glutathione transferase; Polymorphism

The glutathione S-transferase (GST) family comprises phase-II cellular detoxification enzymes that catalyze the conjugation of chemotherapy drugs to glutathione and act on the apoptotic pathway. The aim of this study was to determine whether polymorphisms of the GSTT1, GSTM1, and GSTP1 genes are associated with different rates of overall survival (OS) and disease ... more

A.L. Oliveira; F.F.Oliveira Rodrigues; R.Edos Santos; R.L. Rozenowicz; B. de Melo
11/29/2017
Breeding Methods; Correlations; Genetic; Intercross Between Plants; Onion Segregating Populations
Onion (Allium cepa L.) is the third most valuable
vegetable crop worldwide and the third most produced in Brazil. The
knowledge of the nature and the value of the relationship between the
traits of interest is very important, since it is possible to select a main
trait, with low heritability or difficult measurement, obtaining higher
D.L.M. Machado; J.A. de Freitas; J.M.Q. Luz; G.M. Maciel; A.P.O. Nogueira; E. di Camillo
03/30/2007
Brangus; Carcass; DNA; Growth; Growth hormone; SNP

Sequence polymorphisms in the growth hormone (GH) gene and its transcriptional regulators, Pit-1 and Prop-1, were evaluated for associations with growth and carcass traits in two populations of Brangus bulls Chihuahuan Desert Rangeland Research Center (CDRRC, N = 248 from 14 sires) and a cooperating breeding program (COOP, N = 186 from 34 sires). Polymorphisms were SNP mutations in intron 4 (C ... more

M.G. Thomas; R.M. Enns; K.L. Shirley; M.D. Garcia; A.J. Garrett; G.A. Silver
07/25/2006
Brahman; Carcass; DNA; Genetic marker; Growth; Growth hormone

Associations of DNA polymorphisms in growth hormone (GH) relative to growth and carcass characteristics in growing Brahman steers (N = 324 from 68 sires) were evaluated. Polymorphisms were an Msp-I RFLP and a leucine/valine SNP in the GH gene as well as a Hinf-I RFLP and a histidine/arginine SNP in transcriptional regulators of the GH gene, Pit-1 and Prop-1. Genotypic frequencies of ... more

V.R. Beauchemin; M.G. Thomas; D.E. Franke; G.A. Silver
03/30/2015
Carcass; Hybrid system; meat quality; Nutritional value; Wild boars

The aim of this study was to analyze the results of two crossing systems between wild boars and different domesticated pig breeds. Hybrid wild boars were produced by crossing captured wild boars with Meishan pigs and LY sows according to the traditional production system. The resultant commercial hybrids were black and white in coat color, respectively. Significant differences were found ... more

S.H. Zhang; L.Y. Shen; J. Luo; Z.H. Wu; Y.Z. Jiang; G.Q. Tang; M.Z. Li; L. Bai; X.W. Li; L. Zhu
07/01/2008
Bos indicus; Bos taurus; Guzerat; Mitochondrial DNA; production; Reproduction

The observation of bovine mitochondrial DNA (mtDNA) polymorphisms allows the separation of American zebu cattle, according to its maternal lineage ancestry, into two groups: one with Bos indicus mtDNA and other with Bos taurus mtDNA. The aim of the present study was to determine the productive and reproductive differences between these two groups, in a Guzerat dairy herd. The ... more

J.C.C. Paneto; J.B.S. Ferraz; J.C.C. Balieiro; J.F.F. Bittar; M.B.D. Ferreira; M.B. Leite; G.K.F. Merighe; F.V. Meirelles
11/19/2015
Diversity; Genetic resource conservation; Inbreeding; Microsatellite; Small Tail Han sheep

The aim of this research was to identify the dynamic diversity of Small Tail Han sheep in its main producing areas between different years, and provide a basis for a breeding and genetic resources conservation strategy. For this purpose, 15 microsatellites were genotyped for Small Tail Han Sheep sampled in 2014 from Heze, China, and a comparative analysis of these data with those from a ... more

G.X. E; Y.F. Huang; Y.J. Zhao; J.N. He; N. Liu; T. Zhong; Y.H. Ma; X.Y. Qiu; L.P. Chen
02/23/2017
Ascomycota; Brazil; Carica; Crops, Agricultural; Disease resistance; Fruit; Genotype; Hybrid Vigor; Hybridization, Genetic; Inbreeding; Plant breeding; Plant Diseases; Plant Leaves; Reproducibility of Results

Papaya crop is important to Brazilian agribusiness. However, the expansion of papaya cultivation in the country is affected by the absence of commercial cultivars presenting good disease resistance. The black-spot caused by the fungus Asperisporium caricae is the most damaging foliar disease affecting Brazilian papaya crops. The use of genetically resistant cultivars is a promising strategy to ... more

T.P.S. Poltronieri; S.F. Silveira; M. Vivas; S. Catarina; D.F.M. Cortes; A.O.N. Azevedo; M.G. Pereira

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