Research Article

Related GMR Articles

08/29/2012
Age at first calving; Beef cattle; Hip height; Scrotal circumference; Weight gain

We investigated genetic associations between mature cow weight (MW) and weaning weight (WW), yearling weight (YW), weight gain from birth to weaning (GBW), weight gain from weaning to yearling (GWY), weaning hip height (WHH), yearling hip height (YHH), scrotal circumference (SC), and age at first calving (AFC). Data from 127,104 Nellore animals born between 1993 and 2006, belonging to ... more

I.C. Regatieri; A.A. Boligon; F. Baldi; L.G. Albuquerque
02/19/2016
Age at first calving; First calving interval; Genetic parameter; Longevity

The objective of the present study was to estimate genetic parameters for stayability at 60 months of age (STAY60) and its association with first lactation cumulative milk yield (P305), age at first calving (AFC), and first calving interval (FCI), in order to adopt these traits as selection criteria for longevity in Gir dairy cattle. Records for 2770 cows born between 1982 and 2008 from ... more

R.M.O. Silva; A.A. Boligon; A.R. Fernandes; A.E.Vercesi Filho; E. Faro; H. Tonhati; L.G. Albuquerque; A.B. Fraga; R.M.O. Silva; A.A. Boligon; A.R. Fernandes; A.E.Vercesi Filho; E. Faro; H. Tonhati; L.G. Albuquerque; A.B. Fraga
09/19/2016
Blanco Orejinegro; Creole cattle; Growth traits; Romosinuano; SNP

Colombian creole cattle have important adaptation traits related to heat tolerance and reproductive and productive efficiency. Romosinuano (ROMO) and Blanco Orejinegro (BON) are the most common breeds used by Colombian cattle breeders. Growth traits are of prime importance in these animals, which are mainly raised for beef production. Genes encoding growth hormone, growth hormone receptor ... more

R. Martínez; J.F. Rocha; D. Bejarano; Y. Gómez; Y. Abuabara; J. Gallego; R. Martínez; J.F. Rocha; D. Bejarano; Y. Gómez; Y. Abuabara; J. Gallego
08/28/2015
Down syndrome; Fertility; Heredity; Reciprocal translocation

We report that a 30-year-old woman with mental retardation was referred for prenatal diagnoses during pregnancy. An ultrasound scan showed that the heart structure and function of the fetus were normal. Cytogenetic analysis showed that the female karyotype was 47,XX, t(17; 22) (q21; q11), +21. The woman’s husband had a normal male karyotype and was phenotypically normal. During this first ... more

X.Y. Liu; Y.T. Jiang; R.X. Wang; L.L. Luo; Y.H. Liu; R.Z. Liu
03/31/2016
Candidate gene; Cattle; Fertility; Holstein; Milk; SNP

The objective of the present study was to investigate single nucleotide polymorphisms (SNPs) located in three candidate genes previously reported to have effects on fertility and milk production traits in a population of 123 Holstein cows. The milk production traits evaluated included lifetime averages of milk yield, protein concentration, and fat concentration. Fertility traits ... more

R. Hill; A. Canal; K. Bondioli; R. Morell; M.D. Garcia; R. Hill; A. Canal; K. Bondioli; R. Morell; M.D. Garcia; R. Hill; A. Canal; K. Bondioli; R. Morell; M.D. Garcia
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
3/22/2017
Animals; Base Sequence; Cattle; Female; Fertility; Genome; male; Polymorphism, Single Nucleotide; Pregnancy; Puberty; RNA; Selection, Genetic; Sequence Analysis, RNA; Sexual Maturation

Fertility traits, such as heifer pregnancy, are economically important in cattle production systems, and are therefore, used in genetic selection programs. The aim of this study was to identify single nucleotide polymorphisms (SNPs) using RNA-sequencing (RNA-Seq) data from ovary, uterus, endometrium, pituitary gland, hypothalamus, liver, longissimus dorsi muscle, and adipose tissue in 62 ... more

M.M. Dias; A. Cánovas; C. Mantilla-Rojas; D.G. Riley; P. Luna-Nevarez; S.J. Coleman; S.E. Speidel; R.M. Enns; A. Islas-Trejo; J.F. Medrano; S.S. Moore; M.R.S. Fortes; L.T. Nguyen; B. Venus; I.S.D.P. Diaz; F.R.P. Souza; L.F.S. Fonseca; F. Baldi; L.G. Albuquerque; M.G. Thomas; H.N. Oliveira
05/25/2017
Animals; Buffaloes; Female; Fertility; Gene frequency; Polymorphism, Single Nucleotide; Promoter Regions, Genetic; Receptors, Melatonin

Buffalo production is spreading globally because of its economic advantage. Then, it has become necessary to improve the reproductive and productive efficiency of these animals, as well as to look for genetic factors that increase this efficiency. The objectives of this study were to characterize the promoter region of the melatonin 1A receptor gene (MTRN1A), to detect possible SNPs and ... more

E.M. Barbosa; B.B. Souza; R.C. Guimarães; L.K.N. Silva; J.S.N. Azevedo; E.C. Gonçalves; H.F.L. Ribeiro; S.T.Rolim Filho; S. Filho
08/03/2015
Genetics; GWAS; Hypertension; NPR3; Population diversity

Hypertension affects one-fifth of the world population. Genome-wide association studies (GWAS) have identified several single nucleotide polymorphisms (SNPs) that correlated with hyper­tension in large samples. However, the genetic mutations leading to hypertension might differ among various populations, as they have dif­ferent origins and are subjected to different environmental ... more

H. Sun; Z.Q. Yang; S.Y. Liu; L. Yu; K. Huang; K.Q. Lin; J.Y. Chu; X.Q. Huang
12/08/2015
Growth traits; GWAS; Jinghai yellow chicken; Linkage disequilibrium

Body weight is one of the most important economic traits in the poultry industry. In the present study, a custom SNP Beadchip was used to analyze the association between those 15 SNPs and 12 growth traits of Jinghai yellow chickens, and other important genetic parameters were also calculated and analyzed. The results indicated that nine of the 15 SNPs were associated with growth traits in ... more

M.A. Abdalhag; T. Zhang; Q.C. Fan; X.Q. Zhang; G.X. Zhang; J.Y. Wang; Y. Wei; Y.J. Wang

Pages