Research Article

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Alleles; Animals; Cyprinidae; Expressed sequence tags; Gene Transfer, Horizontal; Heterozygote; Microsatellite Repeats; Polymorphism, Genetic

We used next-generation sequencing technology to characterize 19 genomic simple sequence repeat (SSR) markers and 11 expressed sequence tag (EST) SSR markers from Leuciscus leuciscus baicalensis, a small freshwater fish that is widely distributed in Xinjiang, China. Primers were used to test for polymorphisms in three L. leuciscus baicalensis populations in Xinjiang. There were 4-27 (average ... more

D.J. Lei; G. Zhao; P. Xie; Y. Li; H. Yuan; M. Zou; J.G. Niu; X.F. Ma
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Alleles; Animals; Expressed sequence tags; Genetic markers; Heterozygote; Microsatellite Repeats; Perciformes; Polymorphism, Genetic; Transcriptome

Expressed sequence tags (ETSs) are the sources of microsatellite development. In this study, we isolated and characterized microsatellite markers for Odontobutis potamophila by using Illumina RNA-sequencing. We sequenced a large number of ESTs and screened 200 potential microsatellites. Consequently, a total of 56 novel polymorphic microsatellite repeat markers were identified in thirty-two ... more

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Alleles; DNA, Plant; Expressed sequence tags; Genetic variation; Heterozygote; Microsatellite Repeats; Polymorphism, Genetic; Reproduction; Saccharum

The reduction in sugarcane productivity in subsequent cutting stages may be related to a gradual decrease of the allele number and mean observed heterozygosity (H) in the sugarcane ratoon. This hypothesis was tested assessing the number of alleles and H values in 10 expressed sequence tag microsatellites (Est-SSR loci) of the sugarcane varieties RB72454 and RB867515 in different cutting stages ... more

R. Augusto; R.C. Maranho; C.A. Mangolin; J.C.Bespalho Filho; M.F.P.S. Machado
3/22/2017
Animals; Biomarkers; Chickens; China; Female; Genome-wide association study; Haplotypes; Linkage disequilibrium; male; Polymorphism, Single Nucleotide; Quantitative trait loci; Quantitative Trait, Heritable; Reproduction; Selective breeding

Reproductive traits have long been studied and have an important influence on chicken breeding. To identify quantitative trait loci affecting reproductive traits, a genome-wide analysis of a Chinese chicken breed was performed to analyze age at first egg body weight at first egg, first egg weight, egg weight at the age of 300 days, egg weight at the age of 462 days, egg number at the age of ... more

Q.C. Fan; P.F. Wu; G.J. Dai; G.X. Zhang; T. Zhang; Q. Xue; H.Q. Shi; J.Y. Wang
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Animals; Cattle; Female; Genome-wide association study; Genotype; Lactation; Longevity; Milk; Quantitative trait loci; Quantitative Trait, Heritable; Reproduction; Selective breeding

In this study, we estimated the genetic parameters and identified the putative quantitative trait loci (QTL) associated with the length of productive life (LPL), days open (DO), and 305-day milk yield for the first lactation (FM305) of crossbred Holstein dairy cattle. Data comprising 4,739 records collected between 1986 and 2004 were used to estimate the variance-covariance components using ... more

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Animals; Bayes Theorem; Body weight; Cattle; Female; male; maternal inheritance; Quantitative Trait, Heritable; Selective breeding

This study was carried out to investigate (co)variance components and genetic parameters for growth traits in beef cattle using a multi-trait model by Bayesian methods. Genetic and residual (co)variances and parameters were estimated for weights at standard ages of 120 (W120), 210 (W210), 365 (W365), and 450 days (W450), and for pre- and post-weaning daily weight gain (preWWG and postWWG) in ... more

F.B. Lopes; J.L. Ferreira; R.B. Lobo; G.J.M. Rosa
09/27/2017
Brazil; Ecosystem; Evolution, Molecular; Gene Pool; Genotype; Gossypium; Polymorphism, Genetic; Quantitative Trait, Heritable; seeds; Selective breeding

Mocó cotton belong to the same species as the cultivated species, Gossypium hirsutum, and cultivated forms were mainly landraces but also developed as cultivars, bearing good fiber quality and drought tolerant when cropped as a perennial species. The northeast Brazil crop system based on this cotton type is finished, with a few small area planted in the three main States, where it was ... more

I.P.P. de Menezes; L.V. Hoffmann; T.H. de Lima; A.R. da Silva; V.S. Lucena; P.A.V. Barroso
09/21/2017
Annona; Genotype; Plant breeding; Polymorphism, Genetic; Selection, Genetic; Selective breeding

The aim of this study was to evaluate repeated measures over the years to estimate repeatability coefficient and the number of the optimum measure to select superior genotypes in Annona muricata L. The fruit production was evaluated over 16 years in 71 genotypes without an experimental design. The estimation of variance components and the prediction of the permanent phenotypic value were ... more

C.F.B. Sánchez; R.S. Alves; A.D.P. Garcia; P.E. Teodoro; L.A. Peixoto; L.A. Silva; L.L. Bhering; M.D.V. Resende
09/21/2017
Animals; Diacylglycerol O-Acyltransferase; Genotype; Growth hormone; Leptin; Polymorphism, Single Nucleotide; Receptors, Leptin; Selective breeding; Swine

Molecular markers are tools used to improve genetic gains. The objective of this study was to analyze the security of alleles of molecular marker genes for characteristics of economic interest in a pure population of pigs. After the extraction of DNA from the hair of 272 Large White matrices, the allele and genotype frequency of single nucleotide polymorphism was performed using the ARMS-PCR ... more

I.M. Ferreira; G.S. Vieira; T.F. Braga; T.C.F. Silva; M.M. Franco; R.C. Antunes
09/27/2017
Dietary Fiber; Hybridization, Genetic; Plant breeding; Polymorphism, Genetic; Quantitative Trait, Heritable; Saccharum; Selective breeding; Sucrose

The forecast of a growing energy demand in the coming years has aroused particular interest in biomass for energy cogeneration, to diversify the energy matrix by using clean and renewable sources. To meet the new demands of the sugarcane industry, this study evaluated the agronomic performance and estimated genetic parameters for yield traits in sugar- and energy cane families derived from ... more

A.R.Fernande Júnior; A.A.C. de Azeredo; R.A. de Oliveira; J.C.Bespalho Filho; O.T. Ido; E. Daros; B.P. Brasileiro

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