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KMID : 0578320160390090692
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Molecules and Cells
2016 Volume.39 No. 9 p.692 ~ p.698
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Evolutionary Analyses of Hanwoo (Korean Cattle)-Specific Single-Nucleotide Polymorphisms and Genes Using Whole-Genome Resequencing Data of a Hanwoo Population
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Lee Dae-Hwan
Cho Min-Ah
Hong Woon-Young
Lim Da-Jeong
Kim Hyung-Chul
Cho Yong-Min
Jeong Jin-Young
Choi Bong-Hwan
Ko Youn-Hee
Kim Jae-Bum
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Abstract
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Advances in next generation sequencing (NGS) technologies have enabled population-level studies for many animals to unravel the relationships between genotypic differences and traits of specific populations. The objective of this study was to perform evolutionary analysis of single nucleotide polymorphisms (SNP) in genes of Korean native cattle Hanwoo in comparison to SNP data from four other cattle breeds (Jersey, Simmental, Angus, and Holstein) and four related species (pig, horse, human, and mouse) obtained from public databases through NGS-based resequencing. We analyzed population structures and differentiation levels for the five cattle breeds and estimated species-specific SNPs with their origins and phylogenetic relationships among species. In addition, we identified Hanwoo-specific genes and proteins, and determined distinct changes in protein-protein interactions among five species (cattle, pig, horse, human, mouse) in the STRING network database by additionally considering indirect protein interactions. We found that the Hanwoo population was clearly different from the other four cattle populations. There were Hanwoo-specific genes related to its meat trait. Protein interaction rewiring analysis also confirmed that there were Hanwoo-specific protein-protein interactions that might have contributed to its unique meat quality.
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KEYWORD
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evolutionary analyses, Hanwoo, interaction network, single nucleotide polymorphism, resequencing
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