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Tables for:
Genomic Changes of Chagas Disease Vector, South America

[Emerg Infect Dis 10(3):438-446, 2004. © 2004 Centers for Disease Control and Prevention (CDC)]


Table 1. Analyzed material of Triatoma infestans classified by procedence, biogeographic region, altitude, number of specimens analyzed (n) with C-banding, and number of autosomes with C-bands (mean and standard deviation)a


CountryDepartment, province, locality;
habitatb; y collected
Biogeographic regioncAltitude (m)N (M,F)dNo. of C-autosomes
mean and SD
BoliviaLa Paz, Murillo, Palomar. D. 1997Andes [1]3,0003 M18.00 ± 2.00
BoliviaLa Paz, La Paz, Río Abajo. D. 1997Andes [2]2,90016 M17.00 ± 1.03
BoliviaCochabamba, Esteban Arze, Jamach´Uma. D. 1997Andes [3]2,70015 M, 3 F15.72 ± 1.49
BoliviaCochabamba, Esteban Arze, Jamach´Uma. S. 1997Andes [3]2,7007 M, 2 F16.00 ± 0.87
BoliviaChuquisaca, Yamparaez, Uyuní. D. 1997Andes [4]2,5429 M17.44 ± 0.88
PeruArequipa , Arequipa city. D. 1997Andes [5]2,3368 M16.63 ± 1.06
BoliviaCochabamba, Campero, Peña Colorada. D. 1997Andes [6]1,8903 M16.00 ± 0.00
BoliviaSanta Cruz, Florida, Pampa Grande. D. 1997Andes [7]1,2504 M16.75 ± 0.50
ArgentinaLa Rioja, Anillaco. P. 1997Austral Chaco [8]1,4005 M6.20 ± 0.45
BrazilBahia, Paratinga. D. 1995Caatinga [9]5009 M6.00 ± 0.00
BrazilPiaiu, Caracol. D. 1996Caatinga [10]4506 M, 8 F6.00 ± 0.00
BoliviaSanta Cruz, Cordillera, Izozog. D. 1997Boreal Chaco [11]3502 M7.00 ± 0.00
BoliviaSanta Cruz, Cordillera, Izozog. S. "Dark morphs." 1997Boreal Chaco [11]3508 M6.00 ± 0.00
ParaguayChaco, Río Negro. D. 1997Boreal Chaco [12]3506 M, 3 F6.33 ± 0.50
ArgentineCórdoba, Cruz del Eje, Los Leones. D & P. 2000Austral Chaco [13]25012 M5.17 ± 0.58
ArgentineSantiago del Estero, Moreno, San Pablo. P. 1999Austral Chaco [14]2007 M, 3 F5.50 ± 0.85
UruguaySeveral populations from Southern and Northern. D & P. 1988-1995Pampeana [15,16]0-20044 M, 26 F5.99 ± 0.12

aAll specimens came from natural populations. Statistically significant differences (p < 0.001) were detected in the number of C-autosomes between Andean (16.54 ± 1.29) and non-Andean (5.93 ± 0.45) grouped samples.
bP, peridomiciliary; D, domiciliary; S, sylvatic.
cNumbers in brackets refer to the location of the populations in Figure 1.
dM, males; F, females.


Table 2. C-banding patterns observed in the three largest autosomal pairs of Tiratoma infestans from the non-Andean populations analyzeda


C-banding patternArgentina (Austral Chaco)
[8][13][14]b
Bolivia and Paraguay
(Boreal Chaco) [11,12]
Uruguay (Pampeana)
[15,16]
Brazil (Caatinga)
[9,10]
Total specimens
BB BB BB-1--1
BB BB AB176-14
BB BB AA13432168
BB BB AC1-1-2
BB AB AA4-16121
BB AA AA41a4110
BB AA AC3---3
BB AB AC2---2
BB AB CC2---2
BB AA CC1---1
AB BB AA1---1
AB AB AA2---2
AB AB AC3---3
AB AA AB1---1
AB AA AA13c--4
AA AA AA-4c--4
Total27197023139

aThe population more near the Andean region of Bolivia and Peru, e.g., the Austral Chaco region of Argentine, appeared very variable both in the number of C-banded autosomes and in the karyomorphs observed. By contrast, the samples farthest away from the Andean region, e.g., Brazilian Caatinga populations, were the most homogeneous, almost always exhibiting the same C-karyomorphs (BB BB AA).
bNumbers in brackets refer to the location of the populations in Figure 1.
cSylvatic (dark morphs).


Table 3. Haploid DNA contents (C-value) expressed in pg (mean and standard deviation), measured by flow cytometry, in 42 Tiratoma infestans specimens from different populationsa


OriginPopulation analyzedbnHaploid DNA content
mean and SD (pg)c
Bolivia (Andean)Jamach´Uma. D. [3]41. 842 ± 0.201
Bolivia (Andean)Jamach´Uma. S. [3]41. 835 ± 0.140
Bolivia (Andean)Río Abajo. D. [2]41.799 ± 0.140
Paraguay (non-Andean)Chaco. D. [12]41.494 ± 0.170
Brazil (non-Andean)Caracol and Paratinga. D. [9,10]31.420 ± 0.041
Uruguay (non-Andean)Northern populations. P. D. [16]131.414 ± 0.106
Argentine (non-Andean)Cruz del Eje and Moreno. P. D. [13,14]61.352 ± 0.094
Bolivia (non-Andean)Santa Cruz. S. Dark morphs [11]41.320 ± 0.046

an, number of specimens analyzed; P, peridomiciliary; D, domiciliary; S, sylvatic.
bNumbers in brackets refer to the location of the populations in Figure 1.
cSignificant differences (p < 0.001) were detected in C-values between Andean (1.825 ± 0.149) and non-Andean (1.401 ± 0.111) grouped samples.