The genetic analysis of a new trinucleotide repeat (D5S373) was carried out with a view to its application in both individual genetic profiling and human population genetics. In a screening analysis from seven world populations (n = 706) and after nucleotide sequence analysis, up to nine alleles were found corresponding to 8-13 repetitions of a TAA motif. This analysis shows He values ranging between 0.689-0.762. D5S373 reveals interpopulational variability which leads to specific frequency profiles in the major human groups, with alleles 8, 11, l2, and 13 being particularly informative, which suggests the that this marker may be of interest in the biological study of human populations.
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