Search results for: Sebastián Pita

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Genetic variability highlights the invasion route of the Lutzomyia longipalpis complex, the main vector of Visceral Leishmaniasis in Uruguay

Andrés Cabrera, Sebastián Pita, Telma González, Ana Viera, more

Zoonoses and Public Health > 70 > 5 > 383 - 392

In the Americas, the sandfly Lutzomyia longipalpis is the main vector of the parasitic protozoa Leishmania infantum, the etiological agent of visceral leishmaniasis (VL). The Lu. longipalpis species complex is currently discontinuously distributed across the Neotropical region, from Mexico to the north of Argentina and Uruguay. During its continental spreading, it must have adapted to several biomes...

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Molecular and cytogenetic evidence for sibling species in the Chagas disease vector Triatoma maculata

Andrés Gómez‐Palacio, Sebastián Pita, Fernando Abad‐Franch, Yoman Monsalve, more

Medical and Veterinary Entomology > 37 > 2 > 316 - 329

Triatoma maculata (Hemiptera, Reduviidae, Triatominae) occurs across dry‐to‐semiarid ecoregions of northern South America, where it transmits Trypanosoma cruzi, causative agent of Chagas disease. Using 207 field‐caught specimens from throughout the species' range, mitochondrial(mt) DNA sequence data, and cytogenetics, we investigated inter‐population genetic diversity and the phylogenetic affinities...

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Complete mitochondrial genome of Triatoma infestans (Hemiptera, Reduviidae, Triatominae), main vector of Chagas disease

Sebastián Pita, Francisco Panzera, Jesús Vela, Pablo Mora, more

Infection, Genetics and Evolution > 2017 > 54 > C > 158-163

The complete mitogenome of Triatoma infestans, the main vector of Chagas disease in South America, was obtained by combining Illumina and Sanger sequencing sequence data. The 17,301bp long genome contains 13 protein-coding genes, 22 transfer RNAs, 2 ribosomal RNAs, and a control region. The number, order and orientation of mitochondrial genes are the same as in T. dimidiata, the only Triatominae mt...

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Holocentric chromosome evolution in kissing bugs (Hemiptera: Reduviidae: Triatominae): diversification of repeated sequences

Sebastián Pita, Pedro Lorite, Jesús Vela, Pablo Mora, more

Parasites & Vectors > 2017 > 10 > 1 > 1-8

Background The analysis of the chromosomal and genome evolution in organisms with holocentric chromosomes is restricted by the lack of primary constriction or centromere. An interesting group is the hemipteran subfamily Triatominae, vectors of Chagas disease, which affects around 6 to 7 million people worldwide. This group exhibits extensive variability in the number and chromosomal location of repeated...

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Experimental crosses between Mepraia gajardoi and M. spinolai and hybrid chromosome analyses reveal the occurrence of several isolation mechanisms

Ricardo Campos-Soto, Francisco Panzera, Sebastian Pita, Carol Lages, more

Infection, Genetics and Evolution > 2016 > 45 > C > 205-212

Hematophagous insects of the subfamily Triatominae include several species with a large variety of shapes, behavior and distribution. They have great epidemiological importance since most of them transmit the flagellated protozoan Trypanosoma cruzi, the etiologic agent of Chagas disease. In this subfamily several cases of species hybridization have been reported under experimental and natural conditions...

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New arrangements on several species subcomplexes of Triatoma genus based on the chromosomal position of ribosomal genes (Hemiptera - Triatominae)

Sebastián Pita, Pedro Lorite, Julieta Nattero, Cleber Galvão, more

Infection, Genetics and Evolution > 2016 > 43 > C > 225-231

The hemipteran subfamily Triatominae includes 150 blood-sucking species, vectors of Chagas disease. By far the most specious genus is Triatoma, assembled in groups, complexes and subcomplexes based on morphological similarities, geographic distribution and genetic data. However, many molecular studies questioned the species integration of several subcomplexes as monophyletic units. In triatomines,...

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Epidemiological status of kissing-bugs in South East Asia: A preliminary assessment

Jean-Pierre Dujardin, Khoa Pham Thi, Lam Truong Xuan, Francisco Panzera, more

Acta Tropica > 2015 > 151 > Complete > 142-149

Kissing-bugs (Triatominae) are being increasingly reported as a biting nuisance in SE Asia, with severe bite reactions sometimes leading to anaphylactic shock. In addition, they pose a risk for vector-borne transmission of trypanosomiasis, with potential diagnostic difficulties due to the range of trypanosome species in the region. Here, we review available information about Triatominae in Asia, and...

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Cryptic speciation in the Triatoma sordida subcomplex (Hemiptera, Reduviidae) revealed by chromosomal markers

Francisco Panzera, Sebastián Pita, Julieta Nattero, Yanina Panzera, more

Parasites & Vectors > 2015 > 8 > 1 > 1-10

Background Chagas disease vectors (Hemiptera-Reduviidae) comprise more than 140 blood-sucking insect species of the Triatominae subfamily. The largest genus is Triatoma, subdivided in several complexes and subcomplexes according to morphology, ecology and genetic features. One of them is the sordida subcomplex, involving four species: Triatoma sordida, T. guasayana, T. garciabesi and T. patagonica...

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Evolutionary and dispersal history of Triatoma infestans, main vector of Chagas disease, by chromosomal markers

Francisco Panzera, María J. Ferreiro, Sebastián Pita, Lucía Calleros, more

Infection, Genetics and Evolution > 2014 > 27 > C > 105-113

Chagas disease, one of the most important vector-borne diseases in the Americas, is caused by Trypanosoma cruzi and transmitted to humans by insects of the subfamily Triatominae. An effective control of this disease depends on elimination of vectors through spraying with insecticides. Genetic research can help insect control programs by identifying and characterizing vector populations. In southern...

article

Cytogenetic mapping of the Muller F element genes in Drosophila willistoni group

Sebastián Pita, Yanina Panzera, Vera Valente, Zilpa Melo, more

Genetica > 2014 > 142 > 5 > 397-403

Comparative genomics in Drosophila began in 1940, when Muller stated that the ancestral haploid karyotype of this genus is constituted by five acrocentric chromosomes and one dot chromosome, named A to F elements. In some species of the willistoni group such as Drosophila willistoni and D. insularis, the F element, instead of a dot chromosome, has been incorporated into the E element, forming chromosome...

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INFONA - science communication portal

Search results for: Sebastián Pita

Genetic variability highlights the invasion route of the Lutzomyia longipalpis complex, the main vector of Visceral Leishmaniasis in Uruguay

Molecular and cytogenetic evidence for sibling species in the Chagas disease vector Triatoma maculata

Complete mitochondrial genome of Triatoma infestans (Hemiptera, Reduviidae, Triatominae), main vector of Chagas disease

Holocentric chromosome evolution in kissing bugs (Hemiptera: Reduviidae: Triatominae): diversification of repeated sequences

Experimental crosses between Mepraia gajardoi and M. spinolai and hybrid chromosome analyses reveal the occurrence of several isolation mechanisms

New arrangements on several species subcomplexes of Triatoma genus based on the chromosomal position of ribosomal genes (Hemiptera - Triatominae)

Epidemiological status of kissing-bugs in South East Asia: A preliminary assessment

Cryptic speciation in the Triatoma sordida subcomplex (Hemiptera, Reduviidae) revealed by chromosomal markers

Evolutionary and dispersal history of Triatoma infestans, main vector of Chagas disease, by chromosomal markers

Cytogenetic mapping of the Muller F element genes in Drosophila willistoni group

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