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Dominant Red Coat Color in Holstein Cattle Is Associated with a Missense Mutation in the Coatomer Protein Complex, Subunit Alpha (COPA) Gene
Download2015
Sällman Almén, M., Liao, X., Stothard, P., Henegar, C., Van Doormaal, B., Rubin, C. -J., Andersson, L., Barsh, G. S., Ito, S., Plastow, G., Wakamatsu, K., Dorshorst, B.
Coat color in Holstein dairy cattle is primarily controlled by the melanocortin 1 receptor (MC1R) gene, a central determinant of black (eumelanin) vs. red/brown pheomelanin synthesis across animal species. The major MC1R alleles in Holsteins are Dominant Black (MC1RD) and Recessive Red (MC1Re). A...
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Identification of a putative quantitative trait nucleotide in guanylate binding protein 5 for host response to PRRS virus infection
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Choi, I., Guan, L., Plastow, G. S., Liu, P., Koltes, J. E., Loyd, H., Boddicker, N. J., Eisley, C. J., Schroyen, M., Bao, H., Dekkers, J. C. M., Kommadath, A., Abrams, S. M., Reecy, J. M., Rowland, R. R. R., Serão, N. V. L., Lunney, J. K., Carpenter, S., Stothard, P., Fritz-Waters, E., Tuggle, C. K.
Background Previously, we identified a major quantitative trait locus (QTL) for host response to Porcine Respiratory and Reproductive Syndrome virus (PRRSV) infection in high linkage disequilibrium (LD) with SNP rs80800372 on Sus scrofa chromosome 4 (SSC4). Results Within this QTL,...
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Genome-wide association studies (GWAS) identify a QTL close to PRKAG3 affecting meat pH and colour in crossbred commercial pigs
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Miar, Y., Plastow, G. S., Charagu, P., Wang, Z., Kemp, R. A., Bruce, H., Zhang, Z., Yang, T.
Background Improving meat quality is a high priority for the pork industry to satisfy consumers’ preferences. GWAS have become a state-of-the-art approach to genetically improve economically important traits. However, GWAS focused on pork quality are still relatively rare. Results Six...
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Genetic and Phenotypic Correlations between Performance Traits with Meat Quality and Carcass Characteristics in Commercial Crossbred Pigs
Download2014
Wang, Z., Kemp, R., van Haandel, B., Charagu, P., Zhang, C., Bruce, H., Miar, Y., McKay, R., Huisman, A., Plastow, G., Manafiazar, G., Moore, S.
Genetic correlations between performance traits with meat quality and carcass traits were estimated on 6,408 commercial crossbred pigs with performance traits recorded in production systems with 2,100 of them having meat quality and carcass measurements. Significant fixed effects (company, sex...
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Increasing gene discovery and coverage using RNA-seq of globin RNA reduced porcine blood samples
Download2014
Stothard, P., Fritz-Waters, E., Choi, I., Abrams, S. M., Kommadath, A., Hosseini, A., Plastow, G. S., Guan, L. L., Tuggle, C. K., Bao, H., Meng, Y., Lunney, J. K., Reecy, J. M., Sun, X.
Background Transcriptome analysis of porcine whole blood has several applications, which include deciphering genetic mechanisms for host responses to viral infection and vaccination. The abundance of alpha- and beta-globin transcripts in blood, however, impedes the ability to cost-effectively...
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Estimation of genetic and phenotypic parameters for ultrasound and carcass merit traits in crossbred beef cattle
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Bruce, H. L., Plastow, G. S., Moore, S. S., Wang, Z., Nkrumah, D., Miar, Y., Durunna, O.
Ultrasound measurements of 852 crossbred steers along with carcass merit measurements on 756 of them were used to examine their genetic and phenotypic parameters. Traits including ultrasound backfat thickness (UBF), ultrasound ribeye area (UREA), ultrasound marbling (UMAR), carcass weight (CWT),...
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Gene co-expression network analysis identifies porcine genes associated with variation in Salmonella shedding
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Plastow, G. S., Bearson, S. M. D., Arantes, A. S., Bao, H., Kommadath, A., Stothard, P., Guan, L. L., Tuggle, C. K.
Background Salmonella enterica serovar Typhimurium is a gram-negative bacterium that can colonise the gut of humans and several species of food producing farm animals to cause enteric or septicaemic salmonellosis. While many studies have looked into the host genetic response to Salmonella...
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Single nucleotide polymorphisms for feed efficiency and performance in crossbred beef cattle
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Squires, J. J., Moore, S., Stothard, P., Swanson, K. C., Miller, S. P., Abo-Ismail, M. K., Vander Voort, G., Liao, X., Plastow, G., Mandell, I. B.
Background This study was conducted to: (1) identify new SNPs for residual feed intake (RFI) and performance traits within candidate genes identified in a genome wide association study (GWAS); (2) estimate the proportion of variation in RFI explained by the detected SNPs; (3) estimate the...
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International genetic evaluations for feed intake in dairy cattle through the collation of data from multiple sources
Download2014
Coffey, M. P., Løvendahl, P., Wang, Z., de Haas, Y., Krattenmacher, N., Berry, D. P., Crowley, J. J., Pryce, J. E., Veerkamp, R. F., Weigel, K., Macdonald, K., Spurlock, D.
Feed represents a large proportion of the variable costs in dairy production systems. The omission of feed intake measures explicitly from national dairy cow breeding objectives is predominantly due to a lack of information from which to make selection decisions. However, individual cow feed...
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MicroRNA Buffering and Altered Variance of Gene Expression in Response to Salmonella Infection
Download2014
Plastow, G. S., Bao, H., Kommadath, A., Guan, L. L., Tuggle, C. K., Stothard, P.
One potential role of miRNAs is to buffer variation in gene expression, although conflicting results have been reported. To investigate the buffering role of miRNAs in response to Salmonella infection in pigs, we sequenced miRNA and mRNA in whole blood from 15 pig samples before and after...