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Linares CA, Orozco J. The Coreidae of Honduras (Hemiptera: Coreidae). Biodivers Data J 2017:e13067. [PMID: 28781567 PMCID: PMC5523724 DOI: 10.3897/bdj.5.e13067] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/04/2017] [Accepted: 06/02/2017] [Indexed: 11/12/2022] Open
Abstract
BACKGROUND Coreidae bugs are mostly sap-sucking insects feeding on a variety of plants. Despite their abundance and economic importance in Honduras there is little information on the species, their distribution and affected crops. Since knowledge of pest species allows for better management of crops, we aimed to document the diversity of this economically important group. Specimens from four entomological collections in Honduras were studied and an exhaustive search of all available literature was conducted. NEW INFORMATION A total of 2,036 insects were examined. The fauna of Honduran coreids is now composed of 68 species. Nineteen species are recorded for the country for the first time and 17 species were found only in literature. Little is known about the biology and economic importance of most of the species.
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Affiliation(s)
| | - Jesus Orozco
- Insect Collection, Zamorano University, Zamorano, Honduras
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Zanetti A, Ferreira RC, Serrano MG, Takata CSA, Campaner M, Attias M, de Souza W, Teixeira MMG, Camargo EP. Phytomonas (Euglenozoa: Trypanosomatidae): Phylogenetic analyses support infrageneric lineages and a new species transmitted to Solanaceae fruits by a pentatomid hemipteran. Eur J Protistol 2016; 56:232-249. [PMID: 27771468 DOI: 10.1016/j.ejop.2016.09.004] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/12/2016] [Revised: 07/15/2016] [Accepted: 09/05/2016] [Indexed: 11/15/2022]
Abstract
The genus Phytomonas includes trypanosomatids transmitted to the fruits, latex, and phloem of vascular plants by hemipterans. We inferred the phylogenetic relationships of plant and insect isolates assigned to the previously defined genetic groups A-F and H of Phytomonas, particularly those from groups A, C and E comprising flagellates of Solanaceae fruits. Phylogenetic analyses using glycosomal Glyceraldehyde Phosphate Dehydrogenase (gGAPDH) and Small Subunit rRNA (SSU rRNA) genes strongly supported the monophyly of the genus Phytomonas and its division into seven main infrageneric phylogenetic lineages (Phy clades). Isolates from fruit or latex do not constitute monophyletic assemblages but disperse through more than one lineages. In this study, fruit flagellates were distributed in three clades: PhyA, formed by isolates from Solanaceae and phytophagous hemipterans; PhyC comprising flagellates from four plant families; and PhyE, which contains 15 fruit isolates from seven species of Solanaceae. The flagellates of PhyE are described as Phytomonas dolleti n. sp. according to their positioning in phylogenetic trees, complemented by data about their life cycle, and developmental and morphological characteristics in cultures, fruits of Solanum spp., and salivary glands of the vector, the phytophagous hemipteran Arvelius albopunctatus (Pentatomidae).
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Affiliation(s)
- Andernice Zanetti
- Departamento de Parasitologia, Instituto de Ciências Biomédicas, Universidade de São Paulo, USP, São Paulo, SP, Brazil
| | - Robson C Ferreira
- Departamento de Parasitologia, Instituto de Ciências Biomédicas, Universidade de São Paulo, USP, São Paulo, SP, Brazil
| | - Myrna G Serrano
- Department of Microbiology and Immunology, Virginia Commonwealth University, Richmond, VA, USA
| | - Carmen S A Takata
- Departamento de Parasitologia, Instituto de Ciências Biomédicas, Universidade de São Paulo, USP, São Paulo, SP, Brazil
| | - Marta Campaner
- Departamento de Parasitologia, Instituto de Ciências Biomédicas, Universidade de São Paulo, USP, São Paulo, SP, Brazil
| | - Marcia Attias
- Laboratório de Ultraestrutura Celular Hertha Meyer, Instituto de Biofísica Carlos Chagas Filho, Universidade Federal do Rio de Janeiro, UFRJ, Rio de Janeiro, RJ, Brazil
| | - Wanderley de Souza
- Laboratório de Ultraestrutura Celular Hertha Meyer, Instituto de Biofísica Carlos Chagas Filho, Universidade Federal do Rio de Janeiro, UFRJ, Rio de Janeiro, RJ, Brazil
| | - Marta M G Teixeira
- Departamento de Parasitologia, Instituto de Ciências Biomédicas, Universidade de São Paulo, USP, São Paulo, SP, Brazil.
| | - Erney P Camargo
- Departamento de Parasitologia, Instituto de Ciências Biomédicas, Universidade de São Paulo, USP, São Paulo, SP, Brazil
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Dollet M, Sturm NR, Campbell DA. The internal transcribed spacer of ribosomal RNA genes in plant trypanosomes (Phytomonas spp.) resolves 10 groups. INFECTION GENETICS AND EVOLUTION 2012; 12:299-308. [DOI: 10.1016/j.meegid.2011.11.010] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/17/2011] [Revised: 11/21/2011] [Accepted: 11/22/2011] [Indexed: 11/24/2022]
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Marín C, Dollet M, Pagès M, Bastien P. Large differences in the genome organization of different plant Trypanosomatid parasites (Phytomonas spp.) reveal wide evolutionary divergences between taxa. INFECTION GENETICS AND EVOLUTION 2008; 9:235-40. [PMID: 19111630 DOI: 10.1016/j.meegid.2008.11.009] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/07/2008] [Revised: 11/20/2008] [Accepted: 11/21/2008] [Indexed: 11/24/2022]
Abstract
All currently known plant trypanosomes have been grouped in the genus Phytomonas spp., although they can differ greatly in terms of both their biological properties and effects upon the host. Those parasitizing the phloem sap are specifically associated with lethal syndromes in Latin America, such as, phloem necrosis of coffee, 'Hartrot' of coconut and 'Marchitez sorpresiva' of oil palm, that inflict considerable economic losses in endemic countries. The genomic organization of one group of Phytomonas (D) considered as representative of the genus has been published previously. The present work presents the genomic structure of two representative isolates from the pathogenic phloem-restricted group (H) of Phytomonas, analyzed by pulsed field gel electrophoresis followed by hybridization with chromosome-specific DNA markers. It came as a surprise to observe an extremely different genomic organization in this group as compared with that of group D. Most notably, the chromosome number is 7 in this group (with a genome size of 10 Mb) versus 21 in the group D (totalling 25 Mb). These data unravel an unsuspected genomic diversity within plant trypanosomatids, that may justify a further debate about their division into different genera.
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Affiliation(s)
- C Marín
- CIRAD, Department of Biological Systems, Research Unit 29 "Etiology wilts" TA A-29/F, 34398 Montpellier Cedex 5, France
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Maslov DA, Westenberger SJ, Xu X, Campbell DA, Sturm NR. Discovery and barcoding by analysis of spliced leader RNA gene sequences of new isolates of Trypanosomatidae from Heteroptera in Costa Rica and Ecuador. J Eukaryot Microbiol 2007; 54:57-65. [PMID: 17300521 DOI: 10.1111/j.1550-7408.2006.00150.x] [Citation(s) in RCA: 39] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
Abstract
Trypanosomatid diversity in Heteroptera was sampled using a culture-independent approach based on amplification and sequencing of Spliced Leader RNA gene repeats from environmental samples. By combining the data collected herein with that of previous work, the prevalence of parasites was found to be 22%-23%. Out of approximately 170 host species investigated nearly 60 were found to harbor trypanosomatids. The parasites found were grouped by cluster analysis into 48 typing units. Most of these were well separated from the known groups and, therefore, likely represent new trypanosomatid species. The sequences for each typing unit serve as barcodes to facilitate their recognition in the future. As the sampled host species represent a minor fraction of potential hosts, the entire trypanosomatid diversity is far greater than described thus far. Investigations of trypanosomatid diversity, host-specificity, and biogeography have become feasible using the approach described herein.
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Affiliation(s)
- Dmitri A Maslov
- Department of Biology, University of California, Riverside, California 92521, USA.
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Westenberger SJ, Sturm NR, Yanega D, Podlipaev SA, Zeledón R, Campbell DA, Maslov DA. Trypanosomatid biodiversity in Costa Rica: genotyping of parasites from Heteroptera using the spliced leader RNA gene. Parasitology 2004; 129:537-47. [PMID: 15552399 DOI: 10.1017/s003118200400592x] [Citation(s) in RCA: 55] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Abstract
The biodiversity of insect trypanosomes is largely unknown, resulting in significant gaps in the understanding of pathogen evolution. A culture-independent preliminary survey of trypanosomatid fauna was conducted for the parasites of Heteroptera (Hemiptera) from several localities in Costa Rica. Trypanosomatid infections were detected by light microscopy of smeared gut contents. Out of 257 insects representing 6 families, infections were found in 62 cases; cultures were obtained for 29 new isolates. Gut material from infected hosts was preserved in the field using an SDS–EDTA buffer solution for subsequent DNA extraction in the laboratory. PCR amplification of the trypanosomatid-specific spliced leader (SL) RNA gene repeats was successful for 60 field samples. Eighteen distinct SL RNA typing units were identified in a set of 28 samples analysed in detail. Cluster analysis indicated that these typing units were unique and thus could represent new species and, in some cases, new genera. This study reveals only a minor fraction of the trypanosomatid biodiversity, which is anticipated to be high.
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Affiliation(s)
- S J Westenberger
- Department of Microbiology, Immunology and Molecular Genetics, David Geffen School of Medicine, University of California--Los Angeles, Los Angeles, CA 90095-1487, USA
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