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Mestizo (Admixed), Guatemala

Study statistics

Loci
15 Autosomal STRs
Allele type
Length-based alleles
Sample size
129
Population
Mestizo (Admixed)
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Bibliographic information

Date published
March 1, 2019
Title
Forensic Parameters of 15 Autosomal STRs (Identifiler™ Kit) in Three Mayan Groups and One Mestizo Population from Guatemala
Authors
M. Stephenson-Ojea, J. A. Aguilar-Velázquez, M. A. García-King, and H. Rangel-Villalobos
Journal
Legal Medicine
Abstract

The population of Guatemala includes Mestizos (admixed) and different Mayan groups (Native Americans), which have been poorly studied in regards to short tandem repeat (STR) loci used for human identification (HID) purposes. Therefore, 483 unrelated Guatemalan volunteers from one Mestizo and three Mayan populations (Poqomchi, Ixil, and Achi) were analyzed with an AmpFlSTR Identifiler™ kit. Allele frequencies and forensic parameters were obtained for 15 autosomal STRs in these populations. Hardy-Weinberg equilibrium by locus and equilibrium linkage between pair of loci were demonstrated by exact tests in all the studied populations. Larger genetic differentiation probably due to genetic drift effects was observed among the studied Guatemalan Mayan groups than the neighboring Mexican Mayas. In brief, our results validate to use the Identifiler™ kit for HID in three non-previously studied Mayan groups, and one Mestizo population from Guatemala.

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Forensic parameters

Forensic parameters for each locus as reported by the authors.
Locus # MP PI Hobs Hexp PIC PD PE HWE
CSF1PO - - 1.792 - 0.721 0.656 0.858 0.461 0.743
D13S317 - - 2.688 - 0.814 0.806 0.945 0.625 0.744
D16S539 - - 2.150 - 0.767 0.736 0.908 0.540 0.340
D18S51 - - 3.395 - 0.853 0.855 0.965 0.700 0.874
D19S433 - - 4.607 - 0.892 0.820 0.945 0.778 0.061
D21S11 - - 2.932 - 0.830 0.825 0.955 0.655 0.892
D2S1338 - - 3.395 - 0.853 0.833 0.953 0.700 0.357
D3S1358 - - 1.500 - 0.667 0.657 0.868 0.379 0.721
D5S818 - - 1.500 - 0.667 0.626 0.843 0.379 0.104
D7S820 - - 1.897 - 0.736 0.709 0.891 0.487 0.399
D8S1179 - - 2.932 - 0.830 0.734 0.904 0.655 0.791
FGA - - 4.962 - 0.899 0.862 0.967 0.794 0.756
THO1 - - 1.433 - 0.651 0.624 0.839 0.357 0.273
TPOX - - 1.217 - 0.589 0.599 0.833 0.278 0.649
VWA - - 1.955 - 0.744 0.717 0.902 0.500 0.539

Allele frequencies

CSF1PO D13S317 D16S539 D18S51 D19S433 D21S11 D2S1338 D3S1358 D5S818 D7S820 D8S1179 FGA THO1 TPOX VWA
6 0.4922
7 0.0543 0.2481
8 0.0155 0.0426 0.0194 0.0039 0.0388 0.0116 0.0388 0.4767
9 0.0155 0.2326 0.1318 0.0698 0.0388 0.0116 0.0736 0.0349
9.3 0.1395
10 0.2248 0.1667 0.2442 0.0426 0.2326 0.0465 0.0078 0.0116
10.3 0.0078
11 0.2907 0.155 0.2984 0.0116 0.0078 0.0039 0.5078 0.2907 0.0465 0.2364
11.2 0.0039
12 0.3915 0.2054 0.2403 0.0853 0.0271 0.2481 0.3256 0.1202 0.2403
12.2 0.0426
13 0.0543 0.1279 0.0543 0.093 0.2171 0.0039 0.0659 0.0465 0.3372 0.0078
13.2 0.155
14 0.0078 0.0698 0.0116 0.2209 0.2248 0.062 0.0039 0.0194 0.3023 0.0504
14.2 0.0388
15 0.1357 0.1512 0.4574 0.0039 0.0891 0.1085
15.2 0.1047
16 0.1124 0.0116 0.0155 0.2403 0.0271 0.3411
16.2 0.0155
17 0.155 0.124 0.155 0.0078 0.3101
18 0.0969 0.0659 0.0736 0.1279
19 0.0426 0.1977 0.0039 0.0969 0.0504
20 0.0039 0.1318 0.0349 0.0039
21 0.0116 0.0078 0.1124
22 0.0194 0.0736 0.093
23 0.0116 0.2403 0.124
24 0.0969 0.1473
24.2 0.0078 0.0039
25 0.031 0.1783
26 0.0078 0.1473
27 0.0039 0.0039 0.0426
28 0.0543 0.0039 0.0194
29 0.2093
30 0.2209
30.2 0.0271
31 0.0736
31.2 0.1589
32 0.0039
32.2 0.1473
33 0.0039
33.2 0.0853
34.2 0.0039

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