Molecular Phylogenetic Redefinition of Herpetomonas (Kinetoplastea, Trypanosomatidae), a Genus of Insect Parasites Associated with Flies

Borghesan, Tarcilla Corrente; Ferreira, Renata C.; Takata, Carmen S. A.; Campaner, Marta; Borda, Charlotte C.; Paiva, Fernando; Milder, Regina Vugman; Teixeira, Marta Maria Geraldes; Camargo, Erney P.

doi:10.1016/j.protis.2012.06.001

Cited by 82 publications

(140 citation statements)

References 60 publications

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“…No entanto, como demonstram os métodos moleculares, essas características são insuficientes para a classificação da família (Borghesan et al, 2013;Votýpka et al, 2010Votýpka et al, , 2012Yurchenko et al, 2006Yurchenko et al, , 2008Merzlyak et al, 2001;Camargo, 1999 (Wallace, 1966;Vickerman, 1976;Merzlyac et al, 2001;Svobodová et al, 2007;Teixeira et al, 2011;Borghesan et al, 2013).…”

Section: A Família Trypanosomatidaeunclassified

“…O corpo celular pode conter muitas torções ao longo do eixo longitudinal, uma caracteristica que apesar de comum em flagelados de plantas, não é exclusiva do gênero já que pode ser também observada em promastigotas do gênero Herpetomonas. Portanto, a morfologia não permite distinguir os tripanossomatídeos de plantas dos parasitas monoxênicos de insetos (Camargo, 1999;Borghesan et al, 2013).…”

Section: Estudos De Microscopia De Luz E Eletrônica Demonstram Que Punclassified

“…Maia da Silva et al, 2004;Hamilton et al, 2004Hamilton et al, , 2007Rodrigues et al, 2006;Ferreira et al, 2007Ferreira et al, , 2008Viola et al, 2008Viola et al, , 2009Borghesan et al, 2013;Fermino et al, 2013).…”

Section: Sequências Do Gene Sl E Da Região 5s Apontaram Uma Variabiliunclassified

“…Os genes codificantes do RNA presentes na subunidade menor do ribossomo (SSUrDNA) apresentam múltiplas cópias e uma parcela significante das suas estruturas é conservada em todos os organismos conhecidos (Sogin et al, 1986 Silva et al, 2004, Rodrigues et al, 2006Ferreira et al, 2008;Viola et al, 2009;Lima et al, 2012Lima et al, , 2013Borghesan et al, 2013;Fermino et al, 2013).…”

Section: Ssurdnaunclassified

“…A sequência da região ITS2 evolui rapidamente, assim, em conjunto, as regiões espaçadoras ITS1 e ITS2 e a subunidade 5.8S do gene rDNA tem sido amplamente utilizadas para análises filogenéticas e taxonômicas, apresentando alto grau de polimorfismo, inclusive entre isolados da mesma espécie de tripanossomatídeo (Maia da Silva et al, 2004, Rodrigues et al, 2006Ferreira et al, 2008;Viola et al, 2009;Lima et al, 2012Lima et al, , 2013Borghesan et al, 2013;Fermino et al, 2013).…”

Section: Itsunclassified

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Diversidade, relações filogenéticas e taxonomia de Phytomonas spp.

Zanetti¹

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Section: A Família Trypanosomatidaeunclassified

Section: Estudos De Microscopia De Luz E Eletrônica Demonstram Que Punclassified

Section: Sequências Do Gene Sl E Da Região 5s Apontaram Uma Variabiliunclassified

Section: Ssurdnaunclassified

Section: Itsunclassified

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Diversidade, relações filogenéticas e taxonomia de Phytomonas spp.

Zanetti¹

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Field Isolation and Cultivation of Trypanosomatids from Insects

Lukeš

Votýpka

2020

Methods in Molecular Biology

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The Evolutionary Loss of RNAi Key Determinants in Kinetoplastids as a Multiple Sporadic Phenomenon

et al. 2017

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We screened the genomes of a broad panel of kinetoplastid protists for genes encoding proteins associated with the RNA interference (RNAi) system using probes from the Argonaute (AGO1), Dicer1 (DCL1), and Dicer2 (DCL2) genes of Leishmania brasiliensis and Crithidia fasciculata. We identified homologs for all the three of these genes in the genomes of a subset of these organisms. However, several of these organisms lacked evidence for any of these genes, while others lacked only DCL2. The open reading frames encoding these putative proteins were structurally analyzed in silico. The alignments indicated that the genes are homologous with a high degree of confidence, and three-dimensional structural models strongly supported a functional relationship to previously characterized AGO1, DCL1, and DCL2 proteins. Phylogenetic analysis of these putative proteins showed that these genes, when present, evolved in parallel with other nuclear genes, arguing that the RNAi system genes share a common progenitor, likely across all Kinetoplastea. In addition, the genome segments bearing these genes are highly conserved and syntenic, even among those taxa in which they are absent. However, taxa in which these genes are apparently absent represent several widely divergent branches of kinetoplastids, arguing that these genes were independently lost at least six times in the evolutionary history of these organisms. The mechanisms responsible for the apparent coordinate loss of these RNAi system genes independently in several lineages of kinetoplastids, while being maintained in other related lineages, are currently unknown.

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Molecular Phylogenetic Redefinition of Herpetomonas (Kinetoplastea, Trypanosomatidae), a Genus of Insect Parasites Associated with Flies

Cited by 82 publications

References 60 publications

Diversidade, relações filogenéticas e taxonomia de Phytomonas spp.

Diversidade, relações filogenéticas e taxonomia de Phytomonas spp.

Field Isolation and Cultivation of Trypanosomatids from Insects

The Evolutionary Loss of RNAi Key Determinants in Kinetoplastids as a Multiple Sporadic Phenomenon

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