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Genome-wide association analysis identifies 13 novel susceptibility loci for Carpal Tunnel Syndrome

ABSTRACT: Genome-wide association analysis identifies 13 novel susceptibility loci for Carpal Tunnel Syndrome

PROVIDER: PRJNA422258 | ENA |

REPOSITORIES: ENA

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			Action	DRS
	SRR6373170_1.fastq.gz	Fastqsanger.gz
	SRR6373170_2.fastq.gz	Fastqsanger.gz
	SRR6373180_1.fastq.gz	Fastqsanger.gz
	SRR6373180_2.fastq.gz	Fastqsanger.gz
	SRR6373190_1.fastq.gz	Fastqsanger.gz

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Project description:Sole ulcers (SU) and white line disease (WLD) are noninfectious claw lesions that arise due to compromised horn production and are common causes of lameness in dairy cattle, imposing welfare and profitability concerns. The low to moderate heritability estimates of SU and WLD susceptibility indicate that genetic selection could reduce their prevalence. To identify loci associated with SU and WLD susceptibility, generalized linear mixed model (GLMM) regression and random forest (RF) genome-wide association studies (GWAS) were performed. Cows from five commercial dairies in California were classified as sound controls having no instances of lameness and above six years of age (n = 102) or cases having SU (n = 152), WLD (n = 117), SU and/or WLD (SU+WLD, n = 198), or any type of noninfectious claw lesion (n = 217). Top SNPs were defined as those passing Bonferroni-corrected suggestive and significance thresholds in the GLMM analysis or those that a validated RF model considered important. Effects of top SNPs were quantified using Bayesian estimation. Linkage disequilibrium (LD) blocks defined by top SNPs were explored for candidate genes and previously identified, functionally relevant quantitative trait loci. The GLMM GWAS revealed regions of association on BTA8 for SU and BTA13 common to WLD, SU+WLD, and noninfectious claw lesions. Bayesian estimation of effect sizes indicated that these SNPs had effects significantly different from zero, indicating their small but notable contribution to susceptibility. Promising candidate genes identified in these regions were involved in wound healing, skin lesions, bone growth and mineralization, adipose tissue, and keratinization. The LD block defined by the most significant SNP on BTA8 for SU included a SNP previously reported to be associated with SU. The RF models were overfitted, indicating that SNP effects were very small and thereby preventing meaningful interpretation of SNPs with the highest importance values and downstream analyses. These findings suggested that variants associated with a variety of physiological systems may contribute to susceptibility for noninfectious claw lesions, demonstrating the complexity of genetic predisposition.

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Genome-wide association analysis identifies 13 novel susceptibility loci for Carpal Tunnel Syndrome

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