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Poqomchi, Guatemala

Study statistics

Loci
15 Autosomal STRs
Allele type
Unknown
Sample size
100

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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 - - 1.220 - 0.590 0.626 0.851 0.279 0.073
D13S317 - - 2.500 - 0.800 0.773 0.921 0.599 0.094
D16S539 - - 2.080 - 0.760 0.717 0.897 0.527 0.853
D18S51 - - 3.330 - 0.850 0.853 0.958 0.695 0.099
D19S433 - - 3.330 - 0.850 0.831 0.954 0.695 0.455
D21S11 - - 2.270 - 0.780 0.801 0.939 0.563 0.089
D2S1338 - - 2.080 - 0.760 0.760 0.928 0.527 0.197
D3S1358 - - 1.280 - 0.610 0.560 0.799 0.303 0.659
D5S818 - - 1.250 - 0.600 0.522 0.773 0.291 0.755
D7S820 - - 1.610 - 0.690 0.716 0.902 0.413 0.312
D8S1179 - - 1.850 - 0.730 0.720 0.898 0.476 0.335
FGA - - 3.330 - 0.850 0.843 0.957 0.695 0.407
THO1 - - 1.280 - 0.610 0.511 0.754 0.303 0.385
TPOX - - 1.470 - 0.660 0.574 0.801 0.369 0.818
VWA - - 1.350 - 0.630 0.659 0.866 0.328 0.216

Allele frequencies

CSF1PO D13S317 D16S539 D18S51 D19S433 D21S11 D2S1338 D3S1358 D5S818 D7S820 D8S1179 FGA THO1 TPOX VWA
6 0.555
7 0.1 0.3 0.005
8 0.005 0.035 0.005 0.04 0.5
9 0.035 0.34 0.125 0.05 0.02 0.005 0.005 0.005
9.3 0.14
10 0.16 0.145 0.33 0.005 0.02 0.06 0.17 0.09 0.005 0.01
10.3 0.025
11 0.27 0.055 0.24 0.65 0.275 0.005 0.245
12 0.47 0.195 0.24 0.055 0.07 0.115 0.355 0.16 0.23
12.2 0.025
13 0.055 0.125 0.055 0.08 0.09 0.005 0.025 0.115 0.375 0.01 0.01
13.2 0.25
14 0.005 0.085 0.005 0.19 0.195 0.07 0.24 0.06
14.2 0.105
15 0.02 0.175 0.15 0.575 0.11 0.045
15.2 0.055
16 0.145 0.025 0.215 0.015 0.425
16.2 0.015
17 0.15 0.04 0.115 0.315
18 0.1 0.025 0.02 0.09
19 0.04 0.235 0.08 0.045
20 0.115 0.075
21 0.025 0.04 0.03
22 0.085 0.065
23 0.01 0.35 0.125
24 0.005 0.105 0.2
25 0.02 0.005 0.205
26 0.155
27 0.01 0.05
28 0.045 0.015
29 0.18
30 0.265
30.2 0.025
31 0.045
31.2 0.15
32.2 0.205
33.2 0.065
34.2 0.01

Locus histograms

CSF1PO

D13S317

D16S539

D18S51

D19S433

D21S11

D2S1338

D3S1358

D5S818

D7S820

D8S1179

FGA

THO1

TPOX

VWA