8 documents found, page 1 of 1
Genome-wide association study identifies genetic variants underlying footrot in...
Gaspar, Daniel; Ginja, Catarina; Carolino, Nuno; Leão, Célia; Monteiro, Helena; Tábuas, Lino; Branco, Sandra; Padre, Ludovina; Caetano, PedroOvine footrot caused by Dichelobacter nodosus (D. nodosus) is a contagious disease with serious economic and welfare impacts in sheep production systems worldwide. A better understanding of the host genetic architecture regarding footrot resistance/susceptibility is crucial to develop disease control strategies that efficiently reduce infection and its severity. A genome-wide association study was performed usi...
Genetic Diversity of Salmonella enterica subsp. enterica Serovar Enteritidis fr...
Leão, Célia; Silveira, Leonor; Usié, Ana; Gião, Joana; Clemente, Lurdes; Themudo, Patricia; Amaro, Ana; Pista, AngelaSalmonella enterica subsp. enterica serovar Enteritidis (S. Enteritidis) is one of the leading causes of foodborne infections associated with broilers and laying hens. Portugal has had the lowest notification rates of salmonellosis in recent years, due to the vaccinations of layer and breeder flocks and strict compliance with biosecurity measures. However, data about the genetic diversity of S. Enteritidis in P...
A metagenomics approach to characterize the footrot microbiome in Merino sheep
Usié, Ana; Leão, Célia; Gaspar, Daniel; Monteiro, Helena; Tábuas, Lino; Bettencourt, Elisa; Caetano, Pedro; Padre, Ludovina; Carolino, NunoIn the Portuguese Alentejo region, Merino sheep breed is the most common breed, reared for the production of meat, dairy, and wool. Footrot is responsible for lameness, decreased animal welfare, and higher production losses, generating a negative economic impact. The disease is caused by Dichelobacter nodosus that interacts with the sheep foot microbiome, to date largely uncharacterized. In fact, Dichelobacter ...
An improved reference genome and first organelle genomes of Quercus suber
Usié, Ana; Serra, Octávio; Barros, Pedro M.; Barbosa, Pedro; Leão, Célia; Capote, Tiago; Almeida, Tânia; Rodrigues, Leandra; Carrasquinho, IsabelCork oak (Quercus suber L.) is an ecologically and economically important evergreen tree species native to the Mediterranean region and widespread in southwest Europe and northwest Africa. An improved genome assembly of cork oak using a combination of Illumina and PacBio sequencing is presented in this study. The assembled genome contains 2351 scaffolds longer than 1000 bp, accounting for 765.7 Mbp of genome si...
Ovine footrot in Southern Portugal: detection of Dichelobacter nodosus and Fuso...
Albuquerque, Catarina; Cavaco, Sandra; Caetano, Pedro; Branco, Sandra; Monteiro, Helena; Ramos, Marcos; Usié Chimenos, Anabel; Leão, Célia; Botelho, AnaThe Mediterranean climate region of Alentejo in the Southern of Portugal is an important sheep production centre but little is known about the presence and characteristics of Dichelobacter nodosus in association with Fusobacterium necrophorum in the different footrot lesion scores. DNA from 261 interdigital biopsy samples, taken from 14 footrot affected flocks and from three non-affected flocks, were analysed f...
Emergence and clonal spread of CTX-M-65-Producing Escherichia coli from retail ...
Leão, Célia; Clemente, Maria; Moura, Laura; Seyfarth, Anne Mette; Hansen, Inge M.; Hendriksen, Rene S.; Amaro, AnaResearch Areas: Microbiology; The emergence and dissemination of resistance to third- and fourth-generation cephalosporins among Enterobacteriaceae from different sources impose a global public health threat. Here, we characterized by whole-genome sequencing four Escherichia coli strains harboring the blaCTX−M−65 gene identified among 49 isolates from beef and pork collected at retail. The genomic content was d...
GEN-RES-ALENTEJO - Caracterização bacteriológica da peeira e do parasitismo gas...
Branco, Sandra; Padre, Ludovina; Dias, Clara; Albuquerque, Catarina; Leão, Célia; Cavaco, Sandra; Botelho, AnaGEN-RES-ALENTEJO - Caracterização bacteriológica da peeira e do parasitismo gastrointestinal em ovinos na região do Alentejo Sandra Branco1,, Ludovina Padre1, Clara Dias2, Catarina Albuquerque3, Célia Leão4, Sandra Cavaco4 & Ana Botelho4 1 – ICAAM, DMV, ECT, Universidade de Évora; 2 – Bolseira do projeto GEN-RES-ALENTEJO; 3 - Mestrado em Biologia Molecular e Genética, Departamento de Biologia Vegetal, FCUL; 4 -...
Ecological drivers of Mycobacterium avium subsp. paratuberculosis detection in ...
Cunha, Mónica V.; Rosalino, L. M.; Leão, Célia; Bandeira, Victor; Fonseca, Carlos; Botelho, Ana; Reis, Ana C.Mycobacterium avium subsp. paratuberculosis (MAP) is the etiological agent of Johne's disease or paratuberculosis, a chronic infection affecting domestic ruminants worldwide. Despite sporadic reports of MAP occurrence in non-ruminants, information on the risk factors predisposing for infection is still scarce and evidence of transmission paths linking the livestock-wildlife-environment interfaces also remains l...