Sistemática de Listroscelidinae (Orthoptera: Tettigoniidae) da Mata Atlântica.

• Autor(a) principal: Fialho, Verônica Saraiva
• Data de Publicação: 2012
• Tipo de documento: Dissertação
• Idioma: por
• Título da fonte: LOCUS Repositório Institucional da UFV
• Texto Completo: http://locus.ufv.br/handle/123456789/3963
• topic: Orthoptera; Álcool combustível; Mata Atlântica; Orthoptera; Fuel alcohol; Brazilian Atlantic Forest; CNPQ::CIENCIAS AGRARIAS::AGRONOMIA::FITOSSANIDADE::ENTOMOLOGIA AGRICOLA

In Brazil, the order Orthoptera is poorly studied. Joint efforts among Brazilian experts achieved the approval of the project entitled Biota de Orthoptera do Brasil, to list the species present and make studies of biodiversity in different biomes in the country. The Laboratório de Bioinformática e Evolução/UFV was asked to survey the diversity, systematics and evolution of the group from molecular data. The first step was to standardize procedures to obtaining nucleotide sequences of different species of Orthoptera, from collection, through storage of material (in field and laboratory) to the standardize protocols of extraction and attainment of the amplified fragments (Appendix A). We standardized collection methodology for the preservation of DNA, and published an article with members of the Laboratório de Ortopterologia/UFV about the advantage of using fuel alcohol as a killer and preservative solution, emphasizing the reduction of costs and logistical impediments to transporting flammable substances. This article corresponds to Appendix B of this dissertation. Chapter 1, written with members of the Laborat´orio de Sistemática e Biologia de Coleoptera/UFV (LabCol), contains descriptions of eight species and one new genus from the Central Corridor of the Atlantic Forest and a complete taxonomic revision of the group, with redescriptions, including new distribution records and detailed photographs of the specimens and their structures. Still in together with LabCol, in Chapter 2 we used a molecular approach based on COI and 18S genes to establish phylogenetic relationships among species and genera collected along the Central Corridor of the Atlantic Forest, present in Chapter 1. Our results allow us to suggest the molecular description of two species and one genus, to be added to those already proposed in Chapter 1. In addition, we proposed a region of the COI gene as a DNA barcode, to assist in the diagnosis of specimens. As future prospects, we note (i) the need for new collections aimed at capturing adult males to check the propositions of new taxa, made in Chapter 2 and (ii) the need to further investigate the possibility of numts (mitochondrial sequences that migrated to the nucleus) in several species Listroscelidinae.