1. Analysis of Y-chromosomal SNP haplogroups and STR haplotypes in an Algerian population sample.
- Author
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Robino C, Crobu F, Di Gaetano C, Bekada A, Benhamamouch S, Cerutti N, Piazza A, Inturri S, and Torre C
- Subjects
- Algeria, Arabs genetics, DNA Fingerprinting, Gene Frequency, Humans, Male, Polymerase Chain Reaction, Chromosomes, Human, Y, Genetics, Population, Haplotypes, Polymorphism, Single Nucleotide, Tandem Repeat Sequences
- Abstract
The distribution of Y-chromosomal single nucleotide polymorphism (SNP) haplogroups and short tandem repeat (STR) haplotypes was determined in a sample of 102 unrelated men of Arab origin from northwestern Algeria (Oran area). A total of nine different haplogroups were identified by a panel of 22 binary markers. The most common haplogroups observed in the Algerian population were E3b2 (45.1%) and J1 (22.5%). Y-STR typing by a 17-loci multiplex system allowed 93 haplotypes to be defined (88 were unique). Striking differences in the allele distribution and gene diversity of Y-STR markers between haplogroups could be found. In particular, intermediate alleles at locus DYS458 specifically characterized the haplotypes of individuals carrying haplogroup J1. All the intermediate alleles shared a common repeat sequence structure, supporting the hypothesis that the variant originated from a single mutational event.
- Published
- 2008
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