Distribution of constitutive heterochromatin in two species of triatomines: Triatoma lenti Sherlock and Serafim (1967) and Triatoma sherlocki Papa, Jurberg, Carcavallo, Cerqueira &amp; Barata (2002)

Alevi, Kaio Cesar Chaboli; Mendonça, Priscila Pasqüetto; Pereira, Nathália Paiva; Guerra, Ana Letícia; Facina, Camila Helena; Rosa, João Aristeu da; Azeredo-Oliveira, Maria Tercília Vilela de

doi:10.1016/j.meegid.2012.11.011

Cited by 25 publications

(17 citation statements)

References 18 publications

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“…The disposition of constitutive heterochromatin in Heteroptera chromatin and chromosomes is an important tool in taxonomic and evolutionary studies, and in population genetics (Crossa et al, 2002;Panzera et al, 1992Panzera et al, , 1997Panzera et al, , 2004Gómez-Palacio et al, 2008;Alevi et al, 2013Alevi et al, , 2014aAlevi et al, ,b, 2015aGabriela et al, 2013).…”

Section: Discussionmentioning

confidence: 99%

Distribution of constitutive heterochromatin in Pachycoris torridus (Hemiptera, Scutelleridae) with different chromatic patterns

Souza-Firmino

Alevi²,

Pereira

et al. 2015

Genet. Mol. Res.

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ABSTRACT. The stink bug Pachycoris torridus is a pest of great agricultural importance due to its records on culture of physic nut (Jatropha curcas), which is the raw material for biodiesel production. An interesting feature of this insect is its high phenotypic variability, a characteristic that resulted in it being classified as a new species on eight separate occasions. In the suborder Heteroptera, the heterochromatin pattern is specific and often allows species to be differentiated. To confirm whether there is differentiation between specimens of P. torridus with different color patterns (yellow, orange, brown, and red), samples were analyzed cytogenetically using the C-banding method. During meiotic prophase, the four color patterns analyzed showed a large heterochromatic 15750 T.S. Souza-Firmino et al.©FUNPEC-RP www.funpecrp.com.br Genetics and Molecular Research 14 (4): 15749-15753 (2015) chromocenter, consisting of a combination of both sex chromosomes (X and Y). Thus, the present study reports chromosomal homogeneity in different color patterns of P. torridus and highlights the importance of this tool in the description of new species.

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Section: Discussionmentioning

confidence: 99%

Distribution of constitutive heterochromatin in Pachycoris torridus (Hemiptera, Scutelleridae) with different chromatic patterns

Souza-Firmino

Alevi²,

Pereira

et al. 2015

Genet. Mol. Res.

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“…However, we emphasize that T. lenti and T. petrochiae were not used in any of the phylogenetic analyses described above (perhaps due to difficulties in sample collection). Cytogenetic data (Alevi et al, 2012b(Alevi et al, , 2013b(Alevi et al, , 2014a and experimental hybrid crosses (Mendonça et al, 2014) suggest that T. lenti can be considered as a member of this subcomplex. Monteiro et al (2004) found independent mutations on the same sites of the Cyt b gene during phylogenetic reconstruction.…”

Section: Introductionmentioning

confidence: 99%

Insights into a hotspot in the Brasiliensis subcomplex (Hemiptera, Triatominae) by analysis of D2 domain of the nuclear gene 28S

Guerra¹,

Alevi²,

Banho³

et al. 2016

Genet. Mol. Res.

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ABSTRACT. The Brasiliensis subcomplex is a monophyletic group formed by the species Triatoma brasiliensis brasiliensis, T. b. macromelasoma, T. juazeirensis, T. melanica, and T. sherlocki. However, using cytogenetic data and experimental hybrid crosses, T. lenti and T. petrochiae were also grouped into this subcomplex. This study aims to analyze the properties of hotspot in the D2 domain of the nuclear gene 28S in all species of the Brasiliensis subcomplex as well as T. lenti and T. petrochiae. These species show two transversions at position 385 (G↔C and T↔G). We suggest that this mutation in haplotype 4 may be an initial molecular tool that supports the relationship of these species with the subcomplex. In addition to the transversion at haplotype 4, these species, aside from T. melanica, also possess a transversion at position 385 (G↔T) in haplotype 1. Thus, we describe the hotspot mutations of the D2 domain of the nuclear gene 28S for species in Brasiliensis subcomplex as follows: three transversions are present at position 385 of haplotypes 1 and 4, which are shared by members of the subcomplex as well as T. lenti and T. petrochiae. These transversions may be considered a synapomorphy between these species. However, we emphasize that new phylogenetic studies should be conducted to evaluate whether T. lenti and T. petrochiae are truly members of the Brasiliensis subcomplex.

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“…However, experimental crosses , molecular (Mendonça et al, 2009;Gardim et al, 2014), enzymatic (Costa et al, 1997), and cytogenetic (Panzera et al, 2010(Panzera et al, , 2012Alevi et al, 2012aAlevi et al, , 2013aSucci et al, 2014) techniques have been used as important tools to aid in the classification of species.…”

Section: Introductionmentioning

confidence: 99%

Distribution of constitutive heterochromatin in Triatoma melanocephala (Hemiptera, Triatominae)

2014

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ABSTRACT. In principle, Triatoma melanocephala was included in the Brasiliensis subcomplex on the basis of morphological parameters and geographical layout, since there were no other relevant data available in the literature. On the basis of karyotype, it has been proposed to exclude T. melanocephala, as well as of T. vitticeps and T. tibiamaculata, from the subcomplex, which shows fragmentation of the X sex chromosomes, thereby approaching the species of North America. Therefore, the present study aimed to determine the pattern of constitutive heterochromatin of T. melanocephala to provide new data on the cytotaxonomy of this vector of Chagas disease and especially to try to relate this species to some group, complex or subcomplex of triatomine species, aiding in their classification. This species showed no constitutive heterochromatin in the autosomes or X sex chromosome, but only the Y sex chromosome. The number of chromosomes and heterochromatin pattern of T. melanocephala proved to be identical to that described for Panstrongylus lutzi. Thus, the present study demonstrated a tentative relationship between T. melanocephala and P. lutzi. However, we emphasize that other comparative studies should be conducted between these species, such as experimental crosses and molecular, enzymatic, morphological, and morphometric analyses to determine whether these species are actually evolutionarily related or if the number of chromosomes and the heterochromatin pattern emerged as homoplasies in T. melanocephala and P. lutzi.

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Distribution of constitutive heterochromatin in two species of triatomines: Triatoma lenti Sherlock and Serafim (1967) and Triatoma sherlocki Papa, Jurberg, Carcavallo, Cerqueira & Barata (2002)

Cited by 25 publications

References 18 publications

Distribution of constitutive heterochromatin in Pachycoris torridus (Hemiptera, Scutelleridae) with different chromatic patterns

Distribution of constitutive heterochromatin in Pachycoris torridus (Hemiptera, Scutelleridae) with different chromatic patterns

Insights into a hotspot in the Brasiliensis subcomplex (Hemiptera, Triatominae) by analysis of D2 domain of the nuclear gene 28S

Distribution of constitutive heterochromatin in Triatoma melanocephala (Hemiptera, Triatominae)

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