Volume 22, Number 8—August 2016
Dispatch
Importation of Hybrid Human-Associated Trypanosoma cruzi Strains of Southern South American Origin, Colombia
Louisa A. Messenger
, Juan David Ramirez, Martin S. Llewellyn, Felipe Guhl, and Michael A. Miles
, Juan David Ramirez, Martin S. Llewellyn, Felipe Guhl, and Michael A. Miles
Table
Population genetic parameters for Trypanosoma cruzi discrete typing units, South America, 2002–2010*
| Discrete typing unit | No. multilocus genotypes/no. isolates | Proportion shared alleles ± SD | No. polymorphic loci | Mean no. private alleles per locus ± SE | Mean Ar ± SE† | Mean expected/observed heterozygosity† | % Loci with deficit/excess heterozygosity‡ |
|---|---|---|---|---|---|---|---|
| TcII |
14/15 (5/6) |
0.44 ± 0.23 (0.062 ± 0.053) |
24 (15) |
1.76 ± 0.20 (0.68 ± 0.14) |
3.94 ± 0.29 (1.65 ± 0.12) |
0.58/0.65 (0.91/0.58) |
29.2/20.8 (40.0/0) |
| TcIII |
13/13 (4/4) |
0.48 ± 0.15 (0.30 ± 0.16) |
22 (21) |
2.35 ± 0.48 (1.76 ± 0.27) |
4.26 ± 0.43 (2.35 ± 0.18) |
0.45/0.70 (0.46/0.69) |
4.5/27.3 (9.5/38.1) |
| TcV |
8/8 |
0.15 ± 0.092 |
22 |
0.16 ± 0.07 |
2.38 ± 0.20 |
0.85/0.58 |
54.6/4.5 |
| TcVI | 21/21 (14/14) | 0.24 ± 0.87 (0.22 ± 0.103) | 21 (20) | 0.43 ± 0.12 (0.86 ± 0.20) | 2.46 ± 0.21 (1.87 ± 0.11) | 0.60/0.49 (0.71/0.54) | 41.7/16.7 (40.0/15.0) |
*Values represent findings for reference clones derived from a range of representative hosts and vectors across South America and, in parentheses, clones isolated from humans, triatomine vectors, and sylvatic mammalian hosts in northern Colombia. Values were calculated from microsatellite data for 25 analyzed loci. Ar, allelic richness.
†Across all loci.
‡After sequential Bonferroni correction.
Page created: July 15, 2016
Page updated: July 15, 2016
Page reviewed: July 15, 2016
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