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| [2014] 3. Ji Hyun Lee1, Hanna Kim, V. Shinde, Dong Hoon Shin, Soong Deok Lee |
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| Poster :
Date : 14-09-04 06:42
Hit : 808
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Publication; issue : 2014 Year 38 Vol 3 iss 116 p
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  (546.7K), Down : 78, 2014-09-04 06:42:51 | |
DNA Analysis of a Microdeletion Case on Y Chromosome
Korean J Leg Med 2014;38:116-120
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Department of Forensic Medicine, Seoul National University College of Medicine, Seoul, Korea
Department of Archaeology, Deccan University, Pune, India
Institute of Forensic Science, Seoul National University College of Medicine, Seoul, Korea
Department of Anatomy, Seoul National University College of Medicine, Seoul, Korea
sdlee@snu.ac.kr
The Y-chromosome, as with other chromosomes in the cell, is subject to mutations. However, unlike autosomal genes, the Y chromosome does not undergo recombination, and therefore individuals from different geographical regions may have differing distribution patterns with respect to Y-chromosome mutations. More detailed knowledge and information regarding Y-chromosome mutations might therefore provide insights into phylogenetic history and personal identification. Here, we describe a case study involving genotype-phenotype discrepancy in an Indian male individual. We found that the mistyping in sex determination was caused by a deletion in the amelogenin Y (AMEL Y) gene. Furthermore, on examining the short tandem repeat (Y-STR) loci using the PowerPlex Y23 System, we found four more deleted loci on Yp11.2 (DYS576, DYS481, DYS570, and DYS458) in this sample. We performed deletion mapping for this sample, and we propose that the microdeletion on the Yp11.2 locus occurred approximately in the 6.44 Mb to 9.75 Mb region. Previous studies have reported that the AMEL Y deletion is a common mutation in the Indian population. Taking into account regional differences, we also analyzed several area-specific chromosome mutations.
Key Words : AMELY, Y-STR, Deletion, Yp11.2
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