karyotype evolution in holocentric chromosomes of three related species of triatomines (hemiptera-reduviidae).c-banded karyotypes, dna content and the male meiiotic process of triatoma platensis and triatoma delpontei are compared with those of triatoma infestans, the main vector of chagas disease in south america. these three species present the same diploid chromosome number 2n = 22 (20 autosomes + xx male/xy female). they also have several cytogenetic traits that differ from all other triatomines: large autosomes, c-heterochromatic blocks and meiotic heteropycnotic chromocenters formed by autosomes a ...19957780658
genome size determination in chagas disease transmitting bugs (hemiptera-triatominae) by flow cytometry.because information about genome size in triatomines is scarce and contradictory, we performed dna quantification by flow cytometry in 13 species belonging to five genera (dipetalogaster, eratyrus, panstrongylus, rhodnius, and triatoma) to infer overall tendencies and phylogenetic associations. the results show that the haploid dna content of the subfamily triatominae varies nearly 4-fold, from<0.7 pg in rhodnius species (0.6x10(9) bp) to 2.7 pg in triatoma delpontei (2.6x10(9) bp). considering ...200717360877
new triatoma virus hosts in wild habitats of argentina.triatoma virus (trv), a member of the dicistroviridae family, replicates in intestinal epithelial cells, causing delayed development and death of infected individuals. the aims of this study were to find naturally infected species of triatominae in the wild in the region endemic for chagas disease and analyze and compare the sequence diversity of trv obtained from different triatominae. a total of 253 triatominae belonging to 10 species were captured by active or passive collection. three new se ...201222484232
triatominae in furnariid nests of the argentine gran chaco.triatomines (hemiptera, reduviidae) are bloodsucking insects involved in the transmission of trypanosoma cruzi, the causative agent of chagas disease, an important public health problem in latin america. the triatomine species found in sylvatic habitats generally play a limited epidemiological role compared to domestic species, but they may act as a reinfestation source of dwellings after insecticide spraying and have to be carefully considered in control strategies of chagas disease transmissio ...201424820557
[triatoma delpontei romaña & abalos, 1947 (hemiptera, tratominae) in the brazilian state of rio grande do sul].triatoma delpontei (romaña & abalos, 1947) (hemiptera, triatominae) is an ornithophilic sylvatic with a particular association to the psittacid myiopsitta monachus (boaddert, 1783). it is found in the continental biogeographical province of the chaco, where it inhabits the nests or m. monachus, in subtropical xerophytic forests. the authors report the first finding of t. delpontei in brasil, in the "campanha" region of the state or rio grande do sul (barra do quarai, uruguaiana), on the right ba ...20068278745
distribution and evolution of repeated sequences in genomes of triatominae (hemiptera-reduviidae) inferred from genomic in situ hybridization.the subfamily triatominae, vectors of chagas disease, comprises 140 species characterized by a highly homogeneous chromosome number. we analyzed the chromosomal distribution and evolution of repeated sequences in triatominae genomes by genomic in situ hybridization using triatoma delpontei and triatoma infestans genomic dnas as probes. hybridizations were performed on their own chromosomes and on nine species included in six genera from the two main tribes: triatomini and rhodniini. genomic prob ...201425478792
[triatoma delpontei; study of its biology; area of dispersion in the province of cordoba; mutation of its natural habitat with its devistating march toward domestic & semi-domestic life]. 195713568331
[not available]. 194720342251
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