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KMID : 0624620100430020115
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BMB Reports
2010 Volume.43 No. 2 p.115 ~ p.212
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Transcript profiling of expressed sequence tags from intramuscular fat, longissimus dorsi muscle and liver in Korean cattle (Hanwoo)
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Lim Da-Jeong
Lee Seung-Hwan
Cho Yong-Min
Yoon Du-Hak
Shin Youn-Hee
Park Hye-Sun
Kim Kyu-Won
Kim Hee-Bal
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Abstract
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A large data set of Hanwoo (Korean cattle) ESTs was analyzed to obtain differential gene expression results for the following three libraries: intramuscular fat, longissimus dorsi muscle and liver. To better understand the gene expression profiles, we identified differentially expressed genes (DEGs) via digital gene expression analysis. Hierarchical clustering of genes was performed according to their relative abundance within the six separate groups (Hanwoo fat versus non-Hanwoo fat, Hanwoo muscle versus non-Hanwoo muscle and Hanwoo liver versus non-Hanwoo liver), producing detailed patterns of gene expression. We determined the quantitative traits associated with the highly expressed genes. We also provide the first list of putative regulatory elements associated with differential tissue expression in Hanwoo cattle. In addition, we conducted evolutionary analysis that suggests a subset of genes accelerated in the bovine lineage are strongly correlated with their expression in Hanwoo muscle.
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KEYWORD
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Evolution, Gene expression, Korean cattle (Hanwoo), Quantitative trait, Transcript
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