Genome-Wide Association Analysis for Blood Lipid Traits Measured in Three Pig Populations Reveals a Substantial Level of Genetic Heterogeneity. Yang, H., Huang, X., Zeng, Z., Zhang, W., Liu, C., Fang, S., Huang, L., & Chen, C. PLOS ONE, 10(6):e0131667, June, 2015. Publisher: Public Library of Science
Genome-Wide Association Analysis for Blood Lipid Traits Measured in Three Pig Populations Reveals a Substantial Level of Genetic Heterogeneity [link]Paper  doi  abstract   bibtex   
Serum lipids are associated with myocardial infarction and cardiovascular disease in humans. Here we dissected the genetic architecture of blood lipid traits by applying genome-wide association studies (GWAS) in 1,256 pigs from Laiwu, Erhualian and Duroc × (Landrace × Yorkshire) populations, and a meta-analysis of GWAS in more than 2,400 pigs from five diverse populations. A total of 22 genomic loci surpassing the suggestive significance level were detected on 11 pig chromosomes (SSC) for six blood lipid traits. Meta-analysis of GWAS identified 5 novel loci associated with blood lipid traits. Comparison of GWAS loci across the tested populations revealed a substantial level of genetic heterogeneity for porcine blood lipid levels. We further evaluated the causality of nine polymorphisms nearby or within the APOB gene on SSC3 for serum LDL-C and TC levels. Of the 9 polymorphisms, an indel showed the most significant association with LDL-C and TC in Laiwu pigs. But the significant association was not identified in the White Duroc × Erhualian F2 resource population, in which the QTL for LDL-C and TC was also detected on SSC3. This indicates that population-specific signals may exist for the SSC3 QTL. Further investigations are warranted to validate this assumption.
@article{yang_genome-wide_2015,
	title = {Genome-{Wide} {Association} {Analysis} for {Blood} {Lipid} {Traits} {Measured} in {Three} {Pig} {Populations} {Reveals} a {Substantial} {Level} of {Genetic} {Heterogeneity}},
	volume = {10},
	issn = {1932-6203},
	url = {https://journals.plos.org/plosone/article?id=10.1371/journal.pone.0131667},
	doi = {10.1371/journal.pone.0131667},
	abstract = {Serum lipids are associated with myocardial infarction and cardiovascular disease in humans. Here we dissected the genetic architecture of blood lipid traits by applying genome-wide association studies (GWAS) in 1,256 pigs from Laiwu, Erhualian and Duroc × (Landrace × Yorkshire) populations, and a meta-analysis of GWAS in more than 2,400 pigs from five diverse populations. A total of 22 genomic loci surpassing the suggestive significance level were detected on 11 pig chromosomes (SSC) for six blood lipid traits. Meta-analysis of GWAS identified 5 novel loci associated with blood lipid traits. Comparison of GWAS loci across the tested populations revealed a substantial level of genetic heterogeneity for porcine blood lipid levels. We further evaluated the causality of nine polymorphisms nearby or within the APOB gene on SSC3 for serum LDL-C and TC levels. Of the 9 polymorphisms, an indel showed the most significant association with LDL-C and TC in Laiwu pigs. But the significant association was not identified in the White Duroc × Erhualian F2 resource population, in which the QTL for LDL-C and TC was also detected on SSC3. This indicates that population-specific signals may exist for the SSC3 QTL. Further investigations are warranted to validate this assumption.},
	language = {en},
	number = {6},
	urldate = {2022-09-20},
	journal = {PLOS ONE},
	author = {Yang, Hui and Huang, Xiaochang and Zeng, Zhijun and Zhang, Wanchang and Liu, Chenlong and Fang, Shaoming and Huang, Lusheng and Chen, Congying},
	month = jun,
	year = {2015},
	note = {Publisher: Public Library of Science},
	keywords = {Blood, Genetic loci, Genome-wide association studies, Genomics, Lipids, Metaanalysis, Single nucleotide polymorphisms, Swine},
	pages = {e0131667},
}

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