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(Reference retrieved automatically from Web of Science through information on FAPESP grant and its corresponding number as mentioned in the publication by the authors.)

igh chromosomal mobility of rDNA clusters in holocentric chromosomes of Triatominae, vectors of Chagas disease (Hemiptera-Reduviidae

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Author(s):
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Pita, S. [1] ; Lorite, P. [2] ; Cuadrado, A. [3] ; Panzera, Y. [1] ; De Oliveira, J. [4] ; Alevi, K. C. C. [5] ; Rosa, J. A. [5] ; Freitas, S. P. C. [6] ; Gomez-Palacio, A. [7] ; Solari, A. [8] ; Monroy, C. [9] ; Dorn, P. L. [10] ; Cabrera-Bravo, M. [11] ; Panzera, F. [1]
Total Authors: 14
Affiliation:
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[1] Univ Republica, Fac Ciencias, Secc Genet Evolut, Calle Igua 4225, Montevideo 11400 - Uruguay
[2] Univ Jaen, Dept Expt Biol, Genet, Jaen - Spain
[3] Univ Alcala De Henares, Dept Biomed & Biotechnol, Madrid - Spain
[4] Univ Sao Paulo, Dept Epidemiol, Lab Entomol Saude Publ, Fac Saude Publ, Sao Paulo - Brazil
[5] Univ Estadual Paulista Julio de Mesquita Filho Un, Fac Ciencias Farmaceut, Sao Paulo - Brazil
[6] Fundacao Oswaldo Cruz, Teresina - Brazil
[7] Univ Pedag & Tecnol Colombia, Lab Invest Genet Evolut LIGE, Tunja - Colombia
[8] Univ Chile, Fac Med, Programa Biol Celular & Mol, ICBM, Santiago - Chile
[9] Univ San Carlos, Fac Farm, Lab Entomol Aplicada & Parasitol, Escuela Biol, Guatemala City - Guatemala
[10] Loyola Univ New Orleans, Dept Biol Sci, New Orleans, LA - USA
[11] Univ Nacl Autonoma Mexico, Fac Med, Dept Microbiol & Parasitol, Mexico City, DF - Mexico
Total Affiliations: 11
Document type: Journal article
Source: Medical and Veterinary Entomology; v. 36, n. 1 NOV 2021.
Web of Science Citations: 3
Abstract

The subfamily Triatominae (Hemiptera-Reduviidae) includes more than 150 blood-sucking species, potential vectors of the protozoan Trypanosoma cruzi, causative agent of Chagas disease. A distinctive cytogenetic characteristic of this group is the presence of extremely stable chromosome numbers. Unexpectedly, the analyses of the chromosomal location of ribosomal gene clusters and other repetitive sequences place Triatominae as a significantly diverse hemipteran subfamily. Here, we advance the understanding of Triatominae chromosomal evolution through the analysis of the 45S rDNA cluster chromosomal location in 92 Triatominae species. We found the 45S rDNA clusters in one to four loci per haploid genome with different chromosomal patterns: On one or two autosomes, on one, two or three sex chromosomes, on the X chromosome plus one to three autosomes. The movement of 45S rDNA clusters is discussed in an evolutionary context. Our results illustrate that rDNA mobility has been relatively common in the past and in recent evolutionary history of the group. The high frequency of rDNA patterns involving autosomes and sex chromosomes among closely related species could affect genetic recombination and the viability of hybrid populations, which suggests that the mobility of rDNA clusters could be a driver of species diversification. (AU)

FAPESP's process: 17/05015-7 - Study of hybridization in Triatoma sordida (Stal, 1859) (Hemiptera, Reduviidae): evolutionary dynamics, reproductive viability, morpho-molecular characterization and its taxonomic implications
Grantee:Kaio Cesar Chaboli Alevi
Support Opportunities: Scholarships in Brazil - Post-Doctoral
FAPESP's process: 19/02145-2 - Analysis of the genetic structure of interspecific crosses using species of the genus Mepraia (Hemiptera, Reduviidae, Triatominae).
Grantee:Jader de Oliveira
Support Opportunities: Scholarships in Brazil - Post-Doctoral