Article

The haplomatch program for comparing Y-chromosome STR-haplotypes and its application to the analysis of the origin of Don Cossacks

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Abstract

STR haplotypes of the Y chromosome are widely used as effective genetic markers in studies of human populations and in forensic DNA analysis. The task often arises to compare the spectrum of haplotypes in individuals or entire populations. Performing this task manually is too laborious and thus unrealistic. We propose an algorithm for counting similarity between STR haplotypes. This algorithm is suitable for massive analyses of samples. It is implemented in the computer program Haplomatch, which makes it possible to find haplotypes that differ from the target haplotype by 0, 1, 2, 3, or more mutational steps. The program may operate in two modes: comparison of individuals and comparison of populations. Flexibility of the program (the possibility of using any external database), its usability (MS Excel spreadsheets are used), and the capability of being applied to other chromosomes and other species could make this software a new useful tool in population genetics and forensic and genealogical studies. The Haplomatch software is freely available on our website www.genofond.ru. The program is applied to studying the gene pool of Cossacks. Experimental analysis of Y-chromosomal diversity in a representative set (N = 131) of Upper Don Cossacks is performed. Analysis of the STR haplotypes detects genetic proximity of Cossacks to East Slavic populations (in particular, to Southern and Central Russians, as well as to Ukrainians), which confirms the hypothesis of the origin of the Cossacks mainly due to immigration from Russia and Ukraine. Also, a small genetic influence of Turkicspeaking Nogais is found, probably caused by their occurrence in the Don Voisko as part of the Tatar layer. No similarities between haplotype spectra of Cossacks and Caucasus populations are found. This case study demonstrates the effectiveness of the Haplomatch software in analyzing large sets of STR haplotypes.

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... (Fluxus Technology Ltd., http://www.fluxus-engineering.com) and Network Publisher (Fluxus Engineering, Clare, United Kingdom) on the basis of the reduced median algorithm. Networks were constructed using the data from [44,45]. Search for matching haplotypes was carried out in the program Haplomatch [44]. ...
... Networks were constructed using the data from [44,45]. Search for matching haplotypes was carried out in the program Haplomatch [44]. ...
... Another feature of the gene pool of Sitskari, which is the presence of haplogroup J-P58 (6.7%) atypical of the Russian population, is a relatively recent inclusion of Sitskari migrants from the south in the gene pool: two haplotypes J-P58 found among all of the studied samples of Yaroslavl oblast are the same (Sitskari and Russian), while the third (Sitskari) differs from them by only one mutational step. Search for similar haplotypes using the program Haplomatch [44] for all the data set available in the literature revealed matching with distinction of three mutational steps with representatives of Azeri, Iranians, and Italians. ...
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... software. The search for related haplotypes was conducted using the Haplomatch software 38 . Phylogenetic analysis was conducted using the Reduced-Median method 61 in Network 5 software 62 (http://www. ...
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Donskie kazaki v proshlom i nastoyashchem (Don Cossacks in the Past and Present), Rostovon-Don GinGo
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Istoriya donskogo kazachestva v povestvovaniyakh i rasskazakh, v pyati tomakh (The History of the Don Cossacks in the Narratives and Stories in Five Volumes)
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Popuu lation and segregation data on 17 YYSTRs: results of a GEPPISFG collaborative study
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SanchezzDiz, P., Alves, C., Carvalho, E., et al., Popuu lation and segregation data on 17 YYSTRs: results of a GEPPISFG collaborative study, Int. J. Legal. Med., 2008, vol. 122, pp. 529–533. doi 10.1007/s0041440088 02655z
Popu lation and segregation data on 17 Y STRs: results of a GEP ISFG collaborative study
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