Data: 02/07/2015 - Horário: 14:30h - Local: Sala 236 Bloco I3 ICB/UFMG
Apresentado(a) por: Dr. Alfredo Ruiz

Resumo
The rate of chromosomal evolution varies significantly between lineages. Several factors may contribute to this variation. However, the actual reason for the high evolution rate in some particular lineages is unclear and different studies invoke different explanations. We investigated the fast chromosomal evolution of Drosophila mojavensis using genome sequence information from D. mojavensis, D. buzzatii and D. virilis. D. mojavensis is a cactophilic species of the repleta group living under extreme ecological conditions in the deserts of the Southwestern USA and Northwestern Mexico. The genomes of D. mojavensis and D. virilis were sequenced in 2007 by the Drosophila 12 genomes consortium. We have recently sequenced the genome of D. buzzatii, another member of the repleta group and thus a closer relative to D. mojavensis than D. virilis. The D. buzzatii scaffolds have been anchored to the chromosomes using diverse procedures (conserved linkage, BAC-end sequencing and in situ hybridization) and the chromosome organization compared between D. mojavensis and D. buzzatii using MUMmer and GRIMM software. The results confirmed that chromosome 2 differs between these two species by ten inversions, chromosomes X and 5 differ by one inversion each, and chromosome 4 is homosequential as previously described. In contrast, we find that chromosome 3 differs by five inversions instead of the expected two that were previously identified by cytological analyses. Thirteen of these inversions took place in the D. mojavensis lineage: twelve are fixed and one of them has been identified as a polymorphic inversion previously described in populations from Sonora and Baja California. We have investigated the breakpoint regions of all D. mojavensis inversions in chromosomes 2 and 3 identifying the flanking genes and (when possible) inferring the molecular mechanism that generated the inversion. Overall, our results reveal a number of gene alterations at the inversion breakpoints with putat

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Universitat Autonoma de Barcelona

Data: 25/06/2015 - Horário: 10:00h - Local: Sala 236 Bloco I3 ICB/UFMG
Apresentado(a) por: Dr. Sandro Luis Bonatto
Observações

Possui graduação no Curso de Ciências Biológicas Bacharelado pela Universidade Federal do Rio Grande do Sul (1983), mestrado em Ciências Biológicas (Entomologia) pela Universidade Federal do Paraná (1987) e doutorado em Genética e Biologia Molecular pela Universidade Federal do Rio Grande do Sul (1997). Atualmente é professor adjunto da Pontifícia Universidade Católica do Rio Grande do Sul. É orientador dos Programas de Pós-Graduação em Zoologia e em Biologia Celular e Molecular da PUCRS. Tem experiência na área de Genética e Zoologia, atuando principalmente nos seguintes temas: genética e genômica da conservação, ecologia molecular, evolução animal, evolução humana e filogenia e sistemática molecular. www.researcherid.com/rid/A-1240-2010

Data: 15/05/2015 - Horário: 11:00h - Local: Sala 254 Bloco F2 ICB/UFMG
Apresentado(a) por: Dra. Dirce Maria Carraro

Data: 22/04/2015 - Horário: 13:00h - Local: Bloco B2 - Sala 162 ICB/UFMG
Apresentado(a) por: Prof. Hector Herrera Reynoso,
Observações

Instituto de Medicina Tropical de la Facultad de Medicina de la Universidad San Marcos, Lima, Peru



Instituto de Medicina Tropical de la Facultad de Medicina de la Universidad San Marcos, Lima, Peru


Instituto de Medicina Tropical de la Facultad de Medicina de la Universidad San Marcos, Lima, Peru



Instituto de Medicina Tropical de la Facultad de Medicina de la Universidad San Marcos, Lima, Peru


Instituto de Medicina Tropical de la Facultad de Medicina de la Universidad San Marcos, Lima, Peru


Instituição de Medicina Tropical de la Facultad de Medicina de la Universidad San Marcos, Lima Peru

Data: 13/03/2015 - Horário: 9:00 - Local: Sala 223 Bloco J2
Apresentado(a) por: Dr. Yves Le Loir

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