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Ixil, Guatemala

Study statistics

Loci
15 Autosomal STRs
Allele type
Unknown
Sample size
172

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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.

Forensic parameters

Forensic parameters for each locus as reported by the authors.
Locus # MP PI Hobs Hexp PIC PD PE HWE
CSF1PO - - 1.458 - 0.657 0.617 0.837 0.365 0.805
D13S317 - - 2.324 - 0.785 0.753 0.919 0.571 0.406
D16S539 - - 1.483 - 0.663 0.705 0.897 0.373 0.107
D18S51 - - 3.071 - 0.837 0.830 0.958 0.670 0.876
D19S433 - - 2.000 - 0.750 0.761 0.926 0.510 0.514
D21S11 - - 1.911 - 0.738 0.809 0.949 0.490 0.046
D2S1338 - - 2.529 - 0.802 0.814 0.950 0.603 0.315
D3S1358 - - 1.303 - 0.616 0.551 0.781 0.311 0.741
D5S818 - - 1.075 - 0.535 0.530 0.776 0.220 0.503
D7S820 - - 1.593 - 0.686 0.659 0.868 0.407 0.744
D8S1179 - - 1.755 - 0.715 0.731 0.911 0.452 0.150
FGA - - 2.867 - 0.826 0.836 0.961 0.647 0.552
THO1 - - 1.194 - 0.581 0.502 0.738 0.269 0.202
TPOX - - 1.870 - 0.733 0.637 0.847 0.480 0.572
VWA - - 1.654 - 0.698 0.669 0.876 0.425 0.794

Allele frequencies

CSF1PO D13S317 D16S539 D18S51 D19S433 D21S11 D2S1338 D3S1358 D5S818 D7S820 D8S1179 FGA THO1 TPOX VWA
4 0.0029
6 0.6017
7 0.0901 0.2384
8 0.0174 0.0465 0.0087 0.4448
9 0.032 0.3198 0.1105 0.0407 0.0029 0.0058 0.0116
9.3 0.0029 0.1424
10 0.2238 0.2674 0.2994 0.0058 0.0436 0.2384 0.0523 0.0116
10.3 0.0087
11 0.3081 0.061 0.2936 0.0087 0.6395 0.2297 0.0233 0.2674
11.2 0.0029
12 0.4186 0.1483 0.2471 0.0523 0.0233 0.1395 0.4244 0.1657 0.1919
12.2 0.0058
13 0.0174 0.093 0.0494 0.0756 0.1657 0.0465 0.032 0.2529 0.0727 0.0058
13.2 0.2878
14 0.0901 0.2645 0.2965 0.0552 0.0145 0.3547 0.0407
14.2 0.064
15 0.0029 0.1686 0.0669 0.5523 0.1163 0.0436
15.2 0.0436
16 0.061 0.032 0.2733 0.032 0.3837
16.2 0.0058
17 0.1773 0.0407 0.1017 0.0029 0.3285
18 0.093 0.0523 0.0174 0.1541
19 0.0378 0.2006 0.0523 0.0436
20 0.0058 0.189 0.0436
21 0.0291 0.0291 0.0988
22 0.0203 0.0814 0.0465
23 0.0029 0.2384 0.0872
24 0.0029 0.1424 0.157
25 0.0262 0.2529
26 0.1744
27 0.0669
28 0.0669 0.0029
29 0.2151 0.0174
30 0.25
30.2 0.0058
31 0.0785
31.2 0.125
32 0.0029
32.2 0.1657
33 0.0029
33.2 0.0843
34.2 0.0029

Locus histograms

CSF1PO

D13S317

D16S539

D18S51

D19S433

D21S11

D2S1338

D3S1358

D5S818

D7S820

D8S1179

FGA

THO1

TPOX

VWA