Population data for 12 Y-chromosome STR loci in a sample from

III CONGRESSO BRASILEIRO DE GENÉTICA FORENSE
II JORNADA LATIONOAMERICANA DE GENÉTICA FORENSE
10 a 13 de maio de 2011 • PUCRS • Porto Alegre • RS • Brasil
Population data for 12 Y-chromosome STR loci in a sample
from Santa Catarina
Menezes, ME1*; Ocampos, M2; Latorre, AFS1; e Correa, JA3.
Laboratório DNAnálise, Florianópolis, SC, 88015-330. 2IBIOTECNO, Florianópolis, SC, 88015-330; 3PNCQ –
Programa Nacional de Controle de Qualidade, Rio de Janeiro, RJ.
1
*E-mail: [email protected]
Palavras-chave: STR Y, paternity testing, Santa Catarina.
The Y chromosome non – recombinant portion has been used to construct highly discriminative Y haplotypes. The nonrecombining portion of human Y chromosome is a source of polymorphic regions for analysis of male DNA and they are
very usefull in paternity testing, forensic genetics and population genetics. The Powerplex Y System consisting of 12 Y –STR
markers (DYS19, DYS385a/b, DY389I,II, DYS390, DYS391, DYS392, DYS393, DYS438, DYS439 and DYS437) were
determined from a sample of 70 unrelated male individuals from Santa Catarina state and some parameters were calculated.
A total of 67 different haplotypes were found, 65 haplotypes of them were found to be unique. The haplotype diversity
and discrimination capacity were calculated. Pairwise haplotype distances showed that the Santa Catarina population is not
significantly different from Rio Grande do Sul and Rio de Janeiro and very different from Amazon. The results revealed
that the Y – STR loci used were able to discriminate most of male individuals in the Santa Catarina population, therefore
these results will be of great value in paternity testing when the alleged father is unavaible but other patrilineal are.
Orgão financiador: PNCQ
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