Karyotype Evolution of Chagas Disease Vectors (Hemiptera, Triatominae)

Alevi, Kaio Cesar Chaboli; Oliveira, Jader de; Rosa, João Aristeu da; Azeredo-Oliveira, Maria Tercília Vilela de

doi:10.4269/ajtmh.17-0166

Cited by 11 publications

(14 citation statements)

References 20 publications

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“…This divergence estimate is much younger than the 107 Mya age proposed by Patterson and Gaunt (2010). Although molecular and biogeographic divergences support the diversification of the species of the Rhodniini tribe (as discussed below), karyotype and chromosomal homogeneity demonstrate that species of this tribe have not suffered structural changes in chromosomes during speciation events (Alevi et al, 2018;Ravazi et al, 2021).…”

Section: Historical Biogeographymentioning

confidence: 67%

Historical Biogeography and the Evolution of Hematophagy in Rhodniini (Heteroptera: Reduviidae: Triatominae)

et al. 2021

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The Rhodniini tribe is one of the five tribes in the subfamily Triatominae and is notorious for its domestic blood-sucking pests and vectors of Trypanosoma cruzi across Latin America. The human and economic costs of the Chagas disease in the American tropics are considerable, and these insects are of unquestionable importance to humans. We used mitochondrial rDNA (16S), nuclear ribosomal RNA (28S) and wingless (Wg) sequences to perform phylogenetic analysis to derive trees based on parsimony and maximum likelihood. Nucleotide sequences were used in molecular-clock analyses to estimate time divergence between species of Rhodniini. The potential distribution of each species was modeled and compared with Kappa statistic. Multivariate niches with bioclimatic variables were used to describe differences between the species using discriminant analysis. The results of this study indicate that the Rhodniini originated 17.91 Mya ago. Rhodnius domesticus is the oldest species having its origin at 9.13 Mya. Rhodniini are closely related to Salyavatinae that are specialist termite predators and diverged from this subfamily 30.43 Mya. Most species are clearly allopatric and have distinct bioclimatic niches. The colonization of bromeliads, palms trees and bird nests represent important events for the speciation of these taxa. The hematophagous habit can be described as a scenario where Rhodniini’s ancestor could be pre-adapted for the invasion of bromeliads, palm trees, and bird nests where they would find significant water availability and thermal damping. These environments are widely used by vertebrate inquilines that would be the source of food for the species of Rhodniini. Lastly, our results show an alternative position of Psammolestes in the phylogenetic tree.

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Section: Historical Biogeographymentioning

confidence: 67%

Historical Biogeography and the Evolution of Hematophagy in Rhodniini (Heteroptera: Reduviidae: Triatominae)

et al. 2021

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“…Fusion (simploidy) and fission (agmatoploidy), together with aneuploidies, are the main mechanisms of evolution of the karyotype in Heteroptera [5,6,13,14,15], which support the probable sex systems X n Y, X0 and X 1 X 2 0, as well as Neo XY, from the simple sex determination system (XY) [13,16], being all previously reported sex-determination system already notified for the Pentatomomorpha infraorder [6,17].…”

Section: Introductionmentioning

confidence: 65%

“…The FISH markings on m-chromosomes for A. parensis and L. gonagra (Table 1) when associated with the monophyly of the Coreidae family [47] allows us to propose that these chromosomes have an autosomal origin, since all other species of the Coreidae family showed marking in a pair of autosomes (Table 1) and agmatoploidy events are relatively common in holocentric chromosomes [15]. In addition, although Bressa et al [48] emphasize that nothing can still be said about the information that m-chromosomes carry or what their function might be in the genetic system of the species that possess them, our results together with the results of Bardella et al [26] demonstrate that these chromosomes have transcriptional activity (in this case, related to ribosomal biosynthesis by the presence of the 45S gene [49]), contributing, substantially, with the knowledge about these chromosomes little studied.…”

Section: Resultsmentioning

confidence: 99%

Chromosomal divergence and evolutionary inferences in Pentatomomorpha infraorder (Hemiptera, Heteroptera) based on the chromosomal location of ribosomal genes

Souza-Firmino¹,

Alevi²,

Itoyama³

2020

PLoS ONE

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With the objective of assisting in the understanding of the chromosome evolution of Pentatomomorpha and in the quest to understand how the genome organizes/reorganizes for the chromosomal position of the 45S rDNA in this infraorder, we analyzed 15 species (it has being 12 never studied before by FISH) of Pentatomomorpha with the probe of 18S rDNA. The mapping of the 45S gene in the Coreidae family demonstrated that the species presented markings on the autosomes, with the exception of Acanthocephala parensis and Leptoglossus gonagra that showed markers on m-chromosomes. Most species of the Pentatomidae family showed marking in the autosomes, except for two species that had 45S rDNA on X sex chromosome (Odmalea sp. and Graphosoma lineatum) and two that showed marking on the X and Y sex chromosomes. Species of the Pyrrhocoridae family showed 18S rDNA markers in autosomes, X chromosome as well as in Neo X. The Largidae and Scutelleridae families were represented by only one species that showed marking on the X sex chromosome and on a pair of autosomes, respectively. Based on this, we characterized the arrangement of 45S DNAr in the chromosomes of 12 new species of Heteroptera and discussed the main evolutionary events related to the genomic reorganization of these species during the events of chromosome and karyotype evolution in Pentatomomorpha infraorder.

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“…Although the diverse in number of chromosomes (2n = 21, 22, 23, 24 and 25) in the Triatomini (Ueshima, 1966;Alevi et al, 2018), the karyotype 2n = 22 is the most frequently described for that tribe (Ueshima, 1966;Alevi et al, 2015a). It is believed that this number of chromosomes is the same presented by the common ancestor of these blood-sucking insects (Ueshima, 1966).…”

Section: Resultsmentioning

confidence: 99%

“…Ueshima (1966) first proposed the use of cytogenetic data as a tool in taxonomy (cytotaxonomy) of triatomines. Recently, cytogenetic analyzes have proved to be important tools for studying the taxonomy of these vectors, emphasizing karyosystematic (Alevi et al, 2012(Alevi et al, , 2015a(Alevi et al, , 2018, meiotic (Panzera et al, 1998;Mendonça et al, 2014;Alevi et al, 2014Alevi et al, , 2016a, of the pattern of constitutive heterochromatin (Perez et al, 1992;Panzera et al, 2000Panzera et al, , 2010Alevi et al, 2015b), heterochromatin base pair composition (Bardella et al, 2016;Alevi et al, 2017) and of the distribution of Nucleolus Organizer Regions (NOR) studies (Panzera et al, 2012;Pita et al, 2013Pita et al, , 2016.…”

Section: Introductionmentioning

confidence: 99%

Cytotaxonomy of Dipetalogaster maxima Uhler, 1894 (Hemiptera, Reduviidae, Triatominae)

et al. 2020

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Abstract The Triatomini tribe consists of ten genera and is regarded as one of the most important tribes from epidemiological point of view. The genus Dipetalogaster Usinger, 1939 is composed only by the species Dipetalogaster maxima Uhler, 1894. This triatomine is exclusive of the Mexico and is a potential vector for Chagas disease. Besides the epidemiological importance, the insects of the Triatominae subfamily are important biological models for cytogenetic studies. Therefore, in order to contribute to the knowledge on the reproductive biology and assist in citotaxonomy of D. maxima, this study aimed to describe spermatogenesis, as well as confirm the karyotype and heterochromatic patterns of this Mexican triatomine species. The seminiferous tubules were torn, fixed to a cover slip and underwent the cytogenetic technique of Lacto-acetic orcein and C-banding. Through the cytogenetics analysis of testicular material D. maxima it was possible to confirm the karyotype (2n = 22), describe the stages of spermatogenesis and characterize the heterochromatic pattern (restricted to sex chromosome Y) of the species. D. maxima showed the same arrangement of heterochromatin described for Triatoma lecticularia (Stål, 1859) (a species that occur in United States of American and Mexico and is phylogenetically related with D. maxima), highlighting the importance of this analysis as an optimization tool to explore phylogenetic correlations.

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Karyotype Evolution of Chagas Disease Vectors (Hemiptera, Triatominae)

Cited by 11 publications

References 20 publications

Historical Biogeography and the Evolution of Hematophagy in Rhodniini (Heteroptera: Reduviidae: Triatominae)

Historical Biogeography and the Evolution of Hematophagy in Rhodniini (Heteroptera: Reduviidae: Triatominae)

Chromosomal divergence and evolutionary inferences in Pentatomomorpha infraorder (Hemiptera, Heteroptera) based on the chromosomal location of ribosomal genes

Cytotaxonomy of Dipetalogaster maxima Uhler, 1894 (Hemiptera, Reduviidae, Triatominae)

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