Análisis de 27 marcadores STR del cromosoma Y en poblaciones de la selva del Perú

Analysis of 27 Y-chromosomal STR loci of the Mestizo Peruvian population

“…The Y-STR HD was 0.9964 with 283 distinct haplotypes out of 290 individuals analyzed in the Peruvian population studied herein. This level of diversity is slightly lower than that of the Peruvian Aymara (0.9998, n = 90) and Peruvian Asháninca (1.000) populations and higher than that of the Peruvian Jungle population (0.9910, n = 141) (Tineo et al 2015;Neyra-Rivera et al, 2022;Neyra-Rivera et al 2023). In addition, the diversity value was lower than that of the Mestizo populations of Spain (0.9995, n = 144), Colombia (0.9971, n = 137), and Bolivia (1.000, n = 100) (Martin et al, 2004;Vullo et al 2015;Yunis et al 2005).…”

“…The per locus GD of the studied population ranged between 0.4271 (DYS437) and 0.9415 (DYS385a/b). In contrast, the GD values for the Peruvian Aymara population were between 0.2424 (DYS437) and 0.9298 (DYS385a/b), Peruvian Ashaninca populations were between 0.1337 (DYS437)) and 0.6582 (DYS438) and the population of the Peruvian Jungle were between 0.000 (DYS635, DYS448 and DYS437) and 0.7094 (DYS449) (Tineo et al 2015;Neyra-Rivera et al, 2022;Neyra-Rivera et al 2023). The values have a similar distribution with those of the Mestizo population of Spain, DYS393 (0.4625) had the lowest GD (Martin et al, 2004).…”

“…3 UPGMA tree based on 17 Y-STR markers in common among 15 populations and Rst estimates Neyra-Rivera et al Egyptian Journal of Forensic Sciences (2023) 13:47 populations. The lower proportion of haplogroup Q in the Mestizo population may be due to admixture that has occurred and continues to occur in Peru; for various reasons, native populations have migrated from their communities to the cities in Peru (Tineo et al 2015;Neyra-Rivera et al, 2022;Neyra-Rivera et al 2023).…”

“…The populations of Peru have undergone different migratory processes, contributing to Peruvian population variation and native populations in the coast, mountains, and jungle as well as populations with substantial genetic admixture. Because of this diversity, studies have been carried out on autosomal STRs markers from different Peruvian populations (Delgado & Neyra 2018;Neyra et al 2019Neyra-Rivera et al 2020;Neyra-Rivera et al 2021a, b;Bermejo et al 2022;Neyra-Rivera et al, 2022) and also on Y-STRs from native populations (Tineo et al 2015;Neyra-Rivera et al, 2022;Neyra-Rivera et al 2023) analysis in the case of Y-STRs the genetic diversity (GD, probability that two randomly chosen individuals can be differentiated by a particular genetic marker(s) (Nei 1987)), haplotype diversity (HD, probability that two randomly chosen individuals can be differentiated by a particular set of markers comprising a haplotype(s) (Nei 1987)), probability of a random match (MP, probability that two randomly selected individuals in a population share identical genotypes (Jones 1972)), discrimination capacity (DC, probability that two randomly selected individuals will be genetically differentiated at a particular marker(s) (Smalldon and Moffat 1973)), haploid match probability (HMP, probability that two randomly selected individuals will share the same haplotype), and pairwise genetic distance (RST, the correlation of allele sizes (rather than allelic states) between genetic markers sampled within populations (Excoffier 2001)). However, there have not been studies with large population samples (i.e., greater than 200 individuals) and with at most 23 Y-STR markers.…”