Loading...
14 results
Search Results
Now showing 1 - 10 of 14
- Genetic Data of Four X-Chromosomal STRs in a Population Sample of Santa Catarina, BrazilPublication . Cainé, Laura; Pontes, Lurdes; Abrantes, David; Lima, Gabriela; Pinheiro, FátimaA total of 184 healthy unrelated individuals (70 females and 114 males), autochthonous from Santa Catarina, Brazil.
- Allele frequencies of sixteen STRs in the population of Northern PortugalPublication . Pinheiro, M.F.; Cainé, Laura; Pontes, Lurdes; Abrantes, David; Lima, Gabriela; Pereira, Maria J.; Rezende, PedroAllele frequencies of sixteen autossomal short tandem repeats (STRs), D3S1358, VWA, D16S539, D8S1179, D21S11, D18S51, TH01, FGA, D5S818, D13S317, D7S820, TPOX, CSF1PO, Penta D, Penta E (included in the PowerPlex 16 kit), and the SE33 (PowerPlex ES Monoplex System SE33) were determined in a sample of 200 healthy unrelated individuals from the north of Portugal.
- Genetic Data of 4 X-Chromosomal Short Tandem Repeats in a North of Portugal PopulationPublication . Cainé, Laura; Pontes, Lurdes; Abrantes, David; Lima, Gabriela; Pinheiro, FátimaOne hundred unrelated females and 100 unrelated males, autochthonous, healthy, from the North of Portugal.
- Allele frequencies and population data for 17 Y-STR loci (AmpFℓSTR® Y-filer™) in a Northern Portuguese population samplePublication . Pontes, Lurdes; Cainé, Laura; Abrantes, David; Lima, Gabriela; Pinheiro, Maria de FátimaAllele frequencies and population data for 17 Y-STR loci included in a new commercial kit that has recently been available, the AmpFlSTR Y-filer PCR amplification kit (Applied Biosystems), that permits the simultaneous amplification of all the markers included in the actually used European "extended haplotype", DYS19, DYS189I, DYS389II, DYS390, DYS391, DYS392, DYS393, DYS385I/II, DYS438, DYS439 and also DYS437, DYS448, DYS456, DYS458, DYS635 and Y GATA H4, were obtained from a sample of 175 healthy unrelated males and 45 father-son pairs from the North of Portugal. A total of 171 haplotypes were identified, of which 167 were unique and 4 were found in 2 individuals. The haplotype diversity (99.97%) and discrimination capacity (95.43%) were calculated. We report some non-standard situations, such as allele duplications and mutations. We also report a case of disputed paternity in which duplicated alleles plus an inconsistency of the transmitted alleles appeared.
- Analysis of 10 X-linked tetranucleotide markers in mixed and isolated populationsPublication . Zarrabeitia, María T.; Pinheiro, Fátima; de Pancorbo, Marian M.; Cainé, Laura; Cardoso, Sergio; Gusmão, Leonor; Riancho, José A.We have applied a recently described X-STRs decaplex to characterize four population groups of the Iberian Peninsula, including two well mixed populations and two relatively isolated ones from Northern Spain, in order to get a better insight about the characteristics of X-STRs in those population types between-population differences in allelic frequencies were relatively small. Nevertheless, Fst values were between 0.2 and 2.7%, figures higher than usually reported for autosomic STRs. This result suggests that when forensic cases originate from relatively isolated groups in western Europe, and a specific reference database is not available, it is probably safe to include a Fst-based correction in the calculations of matching or kinship probabilities.
- Population data of 12 X-STR loci in a North of Portugal samplePublication . Cainé, Laura; Costa, Sérgio; Pinheiro, Maria F.
- A GEP-ISFG collaborative study on the optimization of an X-STR decaplex: data on 15 Iberian and Latin American populationsPublication . Gusmão, Leonor; Sánchez-Diz, Paula; Alves, Cíntia; Gomes, Iva; Zarrabeitia, María Teresa; Abovich, Mariel; Atmetlla, Ivannia; Bobillo, Cecilia; Bravo, Luisa; Builes, Juan; Cainé, Laura; Calvo, Raquel; Carvalho, Elizeu; Carvalho, Mónica; Cicarelli, Regina; Catelli, Laura; Corach, Daniel; Espinoza, Marta; García, Óscar; Malaghini, Marcelo; Martins, Joyce; Pinheiro, Fátima; João Porto, Maria; Raimondi, Eduardo; Riancho, Jose Antonio; Rodríguez, Amelia; Rodríguez, Anayanci; Rodríguez Cardozo, Belén; Schneider, Vicente; Silva, Sandra; Tavares, Celso; Toscanini, Ulises; Vullo, Carlos; Whittle, Martin; Yurrebaso, Iñaki; Carracedo, Ángel; Amorim, AntónioIn a collaborative work carried out by the Spanish and Portuguese ISFG Working Group (GEP-ISFG), a polymerase chain reaction multiplex was optimized in order to type ten X-chromosome short tandem repeats (STRs) in a single reaction, including: DXS8378, DXS9902, DXS7132, DXS9898, DXS6809, DXS6789, DXS7133, GATA172D05, GATA31E08, and DXS7423. Using this X-decaplex, each 17 of the participating laboratories typed a population sample of approximately 200 unrelated individuals (100 males and 100 females). In this work, we report the allele frequencies for the ten X-STRs in 15 samples from Argentina (Buenos Aires, Córdoba, Río Negro, Entre Ríos, and Misiones), Brazil (São Paulo, Rio de Janeiro, Paraná, and Mato Grosso do Sul), Colombia (Antioquia), Costa Rica, Portugal (Northern and Central regions), and Spain (Galicia and Cantabria). Gene diversities were calculated for the ten markers in each population and all values were above 56%. The average diversity per locus varied between 66%, for DXS7133, and 82%, for DXS6809. For this set of STRs, a high discrimination power was obtained in all populations, both in males (> or =1 in 5 x 10(5)) and females (> or =1 in 3 x 10(9)), as well as high mean exclusion chance in father/daughter duos (> or =99.953%) and in father/mother/daughter trios (> or =99.999%). Genetic distance analysis showed no significant differences between northern and central Portugal or between the two Spanish samples from Galicia and Cantabria. Inside Brazil, significant differences were found between Rio de Janeiro and the other three populations, as well as between São Paulo and Paraná. For the five Argentinean samples, significant distances were only observed when comparing Misiones with Entre Ríos and with Río Negro, the only two samples that do not differ significantly from Costa Rica. Antioquia differed from all other samples, except the one from Río Negro.
- Mitochondrial DNA diversity in a population from Santa Catarina (Brazil): predominance of the European inputPublication . Palencia, Leire; Valverde, Laura; Álvarez, Alejandra; Cainé, Laura; Cardoso, Sergio; Alfonso-Sánchez, Miguel A.; Pinheiro, M. Fátima; de Pancorbo, Marian M.The state of Santa Catarina (Brazil) is known to have represented a cultural crossroads in South America due to several historic migrations mainly from Europe and Africa. We set out to scrutinize whether the genetic imprint of these migrations could be traced through analysis of the matrilineal gene pool of the Catarinenses. The entire control region of the mitochondrial DNA was studied in 80 healthy and maternally unrelated individuals. The analysis of haplogroup distribution revealed that this population is extremely heterogeneous, showing the coexistence of matrilineal lineages with three different phylogeographic origins. European lineages are the most frequent due mainly to the impact of relatively recent migratory waves from Europe. In spite of this, Native American lineages and African lineages incorporated with the slave trade are also present in noticeable proportions. The strikingly high variability generated by intense gene flow is mirrored in a high sequence diversity (0.9930) and power of discrimination (0.9806). Thus, analysis of the entire mitochondrial DNA control region emerges as a valuable tool for forensic genetic purposes in this highly admixed population, an attribute common to several present-day Latin American populations.
- Allele frequencies and haplotypes of 8 Y-chromosomal STRs in the Santa Catarina population of southern BrazilPublication . Cainé, Laura; Real, F. Corte; Vieira, Duarte Nuno; Carvalho, Mónica; Serra, Armando; Lopes, Virgı́nia; Vide, Maria C.Allele frequencies and haplotypes of eight Y-chromosomal short tandem repeats (STRs), DYS19, DYS385, DYS389 I, DYS389 II, DYS390, DYS391, DYS392 and DYS393 were determined in a sample of 109 males from Santa Catarina. The origin of this southern Brazilian population is mainly from Portuguese people, namely from Azores archipelago.
- Segments HVS-I and HVS-II of mitochondrial DNA in a population from Santa Catarina (Brazil): Predominance of European lineagesPublication . Valverde, Laura; Palencia, Leire; Pinheiro, M. Fátima; Cainé, Laura; Cardoso, Sergio; Alfonso-Sánchez, Miguel A.; de Pancorbo, Marian M.The study of the hypervariable segments HVS-I and HVS-II of the mitochondrial DNA (mtDNA) control region of 80 healthy and maternally unrelated individuals revealed that the population from Santa Catarina is extremely heterogeneous, mainly due to the impact of relatively recent migratory waves from Europe. In spite of this, Native American lineages as well as African lineages incorporated much earlier are also present at noticeable proportions. This strikingly high variability generated by the intense gene flow is mirrored in a high power of discrimination (97.69%), which makes the analysis of mitochondrial HVS-I and HVS-II segments very useful for forensic genetic purposes in this Brazilian population.