Identification of transposable element-mediated deletions in 27 Korean individuals based on whole genome sequencing data
2016
Ha, J., Dankook University, Cheonan, Republic of Korea | Lee, W., Dankook University, Cheonan, Republic of Korea | Mun, S., Dankook University, Cheonan, Republic of Korea | Kim, Y.J., Dankook University, Cheonan, Republic of Korea | Han, K., Dankook University, Cheonan, Republic of Korea
The human genome has various genomic structural variations such as insertion/deletions between human individuals. These structural variations have led to genomic fluidity and rearrangements in individuals and populations. To investigate Korean-specific structural genomic variations, we performed next generation sequencing with 309 mean coverage from 27 Korean individuals using illumina-HiSeq 2000 platform. We collected a total of 119 deletion loci as transposable elementmediated Korean-specific deletion (KSD) candidates. Of the 119 loci, 35 were filtered out due to computational overlapping regions. A total of 78 loci were validated by PCR amplification with 27 Korean individuals and 80 human individuals from four different populations. We confirmed deletion breakpoints of the 78 loci using Sanger sequencing. We also investigated different deletion mechanisms based on sequencing alignment analysis. We found at least one KSD locus in 80 human individual panel. It has not been previously reported in human genomes. Here, for the first time, we report transposable element-mediated KSD study based on whole genome sequencing data of 27 Korean.
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