4 Works

Data from: Population-specific genetic modification of Huntington's disease in Venezuela

Michael J. Chao, Kyung-Hee Kim, Jun Wan Shin, Diane Lucente, Vanessa C. Wheeler, Hong Li, Jared C. Roach, Leroy Hood, Nancy S. Wexler, Laura B. Jardim, Peter Holmans, Lesley Jones, Michael Orth, Seung Kwak, James F. Gusella, Marcy E. MacDonald & Jong-Min Lee
Modifiers of Mendelian disorders can provide insights into disease mechanisms and guide therapeutic strategies. A recent genome-wide association (GWA) study discovered genetic modifiers of Huntington's disease (HD) onset in Europeans. Here, we performed whole genome sequencing and GWA analysis of a Venezuelan HD cluster whose families were crucial for the original mapping of the HD gene defect. The Venezuelan HD subjects develop motor symptoms earlier than their European counterparts, implying the potential for population-specific modifiers....

Data from: Impact of introduction of Xpert MTB/RIF test on tuberculosis (TB) diagnosis in a city with high TB incidence in Brazil

Giovana Rodrigues Pereira, Márcia Silva Barbosa, Natan José Dutra Dias, Carlos Podalirio Borges De Almeida & Denise Rossato Silva
Background: Xpert MTB/RIF is increasingly used in many countries as the initial diagnostic test for tuberculosis (TB). Few studies have evaluated the effect of Xpert on TB diagnosis under programmatic conditions in Brazil. The aim of the present study was to evaluate the impact of introduction of Xpert MTB/RIF on TB diagnosis in a city with high TB incidence in Brazil. Methods: We included patients evaluated with conventional diagnostic tests during one year before Xpert...

Data from: Phylogenetic systematics of subtribe Spiranthinae (Orchidaceae: Orchidoideae: Cranichideae) based on nuclear and plastid DNA sequences of a nearly complete generic sample

Gerardo A. Salazar, Joao A.N. Batista, Lidia I. Cabrera, Cassio Van Den Berg, W. Mark Whitten, Eric C. Smidt, Cristiano R. Buzatto, Rodrigo B. Singer, Gunter Gerlach, Rolando Jimenez-Machorro, Jose A. Radins, Irma S. Insaurralde, Leonardo R.S. Guimaraes, Fabio De Barros, Francisco Tobar, Jose L. Linares, Ernesto Mujica, Robert L. Dressler, Mario A. Blanco, Eric Hagsater & Mark W. Chase
Subtribe Spiranthinae is the most species-rich lineage of terrestrial Neotropical orchids, encompassing > 500 species and 40 genera. We conducted maximum parsimony and maximum likelihood phylogenetic analyses of DNA sequence data of plastid matK-trnK and trnL-trnF and nuclear ribosomal ITS sequences for 36 genera and 182 species of Spiranthinae plus appropriate outgroups. The results strongly support monophyly of Spiranthinae (minus Discyphus, Discyphinae and Galeottiella, Galeottiellinae) and five major lineages, namely monospecific Cotylolabium (sister to the...

Data from: Tracing the diversification history of a Neogene rodent invasion into South America

Renan Maestri, Nathan S. Upham & Bruce D. Patterson
We investigated spatial patterns of evolutionary relatedness and diversification rates to test hypotheses about the historical biogeographic processes underlying the radiation of Neotropical rats and mice (Sigmodontinae, ~400 species). A negative correlation between mean phylogenetic distance and diversification rates of rodent assemblages reveals a pattern of species co-occurrence in which assemblages of closely related species are also the fastest diversifying ones. Subregions of the Neotropics occupied by distantly related species that are on average more...

Registration Year

  • 2018

Resource Types

  • Dataset


  • Federal University of Rio Grande do Sul
  • Massachusetts General Hospital
  • Columbia University
  • Field Museum of Natural History
  • Universidade Federal de Ciências da Saúde de Porto Alegre
  • Royal Botanic Gardens
  • Universidade Federal de Minas Gerais
  • Universidade de Passo Fundo
  • Instituto de Botânica
  • National Autonomous University of Mexico