Animal Genetics
Estimates of genetic parameters for stayability and their associations with traits of economic interest in Gir dairy cows
Authors: R.M.O. Silva1,2, A.A. Boligon2, A.R. Fernandes3, A.E. Vercesi Filho4, L. El Faro4, H. Tonhati2, L.G. Albuquerque2 and A.B. Fraga1
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.. Read More»
- Genet. Mol. Res. 15(1):
- gmr.15016958
- DOI:
- 10.4238/gmr.15016958
Relationship between liver and low rumen pH in goat
Authors: Z. Xie, X. Jiang, P. Ye, Y. Zhang, Y. Ni, S. Zhuang and X. Shen
The aim of this study was to analyze the response of dry goat liver to sub-acute ruminal acidosis induced by a highly concentrated diet. Non-pregnant, non-lactating female Poll-goats (N = 12) were randomly assigned to either a high-concentrate (HG) or a low-concentrate (LG) diet. Low rumen pH was successfully induced with HG (more than 3 h with rumen pH S.. Read More»
- Genet. Mol. Res. 14(1):
- 2015.January.16.4
- DOI:
- 10.4238/2015.January.16.4
Genetic study of skin thickness and its association with postweaning growth in Nellore cattle: estimation of the genetic parameters
Authors: A.M. Maiorano1, M.C.S. Oliveira2, J.N.S.G. Cyrillo3, L.G. Albuquerque1,R.A. Curi4 and J.A.IIV. Silva4
The objective of the present study was to estimate genetic parameters for skin thickness (ST) and postweaning weight gain (PWG550) in Nellore cattle. Records were obtained from 152,392 Nellore animals born between 2001 and 2011. ST was measured in the posterior region of the animal’s scapula with a millimeter caliper. The animals were assigned to di.. Read More»
- Genet. Mol. Res. 15(1):
- gmr.15017124
- DOI:
- 10.4238/gmr.15017124
Evaluation of methods of DNA extraction from Staphylococcus aureus in milk for use in real-time PCR
Authors: A.G. Dibbern, B.G. Botaro, M.P. Viziack, L.F.P. Silva and M.V. Santos
The aim of this study was to evaluate the repeatability and performance of 4 methods of extracting DNA from Staphylococcus aureus (SAU) and the gene encoding bovine mitochondrial cytochrome B (BMCB) in milk samples from cows with subclinical mastitis for use in amplification by real-time polymerase chain reaction. Two milk samples were obtained from cows .. Read More»
- Genet. Mol. Res. 14(1):
- 2015.January.16.6
- DOI:
- 10.4238/2015.January.16.6
Isolation and characterization of novel polymorphic microsatellite loci in Perinereis aibuhitensis
Authors: Y. Liu, D. Yu, Q. Wang, H. Liu, S. Guan and M. Liu
Perinereis aibuhitensis is a commercially and ecologically important intertidal worm. In this study, eight polymorphic microsatellite loci were isolated in this species for the first time, and a wild population was used to estimate the properties of these loci. The number of alleles per locus ranged from 6 to 20, and the observed and expected heterozygosi.. Read More»
- Genet. Mol. Res. 15(1):
- gmr.15017144
- DOI:
- 10.4238/gmr.15017144
Study of lipid metabolism-related genes as candidate genes of sexual precocity in Nellore cattle
Authors: M.M. Dias, F.R.P. Souza, L. Takada, F.L.B. Feitosa, R.B. Costa,I.D.P.S. Diaz, D.F. Cardoso, R.L. Tonussi, F. Baldi,L.G. Albuquerque and H.N. Oliveira
The objective of this study was to identify associations between known polymorphisms in genes related to adipose tissue and sexual precocity in Nellore cattle. A total of 1689 precocious and non-precocious heifers belonging to farms participating in Conexão Delta G breeding program were studied. SNPs from the Illumina High-Density Bovine SNP BeadCh.. Read More»
- Genet. Mol. Res. 14(1):
- 2015.January.16.7
- DOI:
- 10.4238/2015.January.16.7
Indirect selection of industrial tomato genotypes that are resistant to spider mites (Tetranychus urticae)
Authors: J.E. Baier, J.T.V. Resende, M.V. Faria, K. Schwarz and L. Meert
Acyl sugars present in the tomato Solanum lycopersicum ‘LA-716’ accession confer good levels of resistance to arthropod pests. The objective of the present study was to select F2 plants from the interspecific cross Solanum pennellii ‘LA-716’ x Solanum lycopersicum ‘Redenção’ to assess resistance to spider .. Read More»
- Genet. Mol. Res. 14(1):
- 2015.January.16.8
- DOI:
- 10.4238/2015.January.16.8
Changes of peripheral-type benzodiazepine receptors in the penumbra area after cerebral ischemia-reperfusion injury and effects of astragaloside IV on rats
Authors: Y.L. Cao, C.F. Chen, A.W. Wang, Y.B. Feng, H.X. Cheng,W.W. Zhang4and W. Xin
This study investigated the changes in peripheral benzodiazepine receptors (PBRs) in the penumbra after cerebral ischemia-reperfusion injury, and examined the effects of astragaloside IV (AST) on PBRs in rats. Sixty Sprague-Dawley rats were divided into a sham operation group, a model group, and three AST treatment groups. Cerebral ischemic models were in.. Read More»
- Genet. Mol. Res. 14(1):
- 2015.January.23.1
- DOI:
- 10.4238/2015.January.23.1
Identification and association of single-nucleotide polymorphisms in gonadotropin-inhibitory hormone (GnIH) gene with egg production traits in Erlang mountainous chickens
Authors: Y.D. Hu, Q.K. Huang, Q. Zhu, D. Lan, Z.Q. Feng, L. Zhang,X. Lan, L. Ye, Y.P. Liu, M. He and H.B. Pu
Gonadotropin-inhibitory hormone (GnIH) gene is an important gene in reproduction. In this study, we screened single-nucleotide polymorphisms (SNPs) in the chicken GnIH gene among 204 individuals in Erlang mountainous chickens. We then analyzed the associations between polymorphisms of the GnIH gene and 5 egg production traits in chickens. Five SNPs (T3305C, .. Read More»
- Genet. Mol. Res. 14(1):
- 2015.January.23.3
- DOI:
- 10.4238/2015.January.23.3
Bovine dopamine receptors DRD1, DRD4, and DRD5: genetic polymorphisms and diversities among ten cattle breeds
Authors: A.M. Sifuentes-Rinc�³n1, A.G. Trejo-Tapia1, R.D. Randel2, P. Ambriz-Morales1 and G.M. Parra-Bracamonte1
The aim of this study was to analyze the allelic frequency distribution and segregation among breeds and/or between different cattle genetic groups of four novel single nucleotide polymorphisms of the bovine DRD1 and DRD5 genes and one reported SNP from the DRD4 gene. One hundred and nine-animals from ten different cattle breeds were genotyped and allelic.. Read More»
- Genet. Mol. Res. 15(1):
- gmr.15017725
- DOI:
- 10.4238/gmr.15017725