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Detecting Genetic Introgression: High Levels of Intersubspecific Recombination Found in Xylella fastidiosa in Brazil

Documenting the role of novel mutation versus homologous recombination in bacterial evolution, and especially in the invasion of new hosts, is central to understanding the long-term dynamics of pat...

Effects of DNA Size on Transformation and Recombination Efficiencies in Xylella fastidiosa

Horizontally transferred DNA acquired through transformation and recombination has the potential to contribute to the diversity and evolution of naturally competent bacteria. However, many differen...

Gene disruption by homologous recombination in the Xylella fastidiosa citrus variegated chlorosis strain

Mutagenesis by homologous recombination was evaluated in Xylella fastidiosa by using the bga gene, coding for R-galactosidase, as a model. Integration of replicative plasmids by homologous recombin...

Intersubspecific Recombination in Xylella fastidiosa Strains Native to the United States: Infection of Novel Hosts Associated with an Unsuccessful Invasion

The bacterial pathogen Xylella fastidiosa infects xylem and causes disease in many plant species in the Americas. Different subspecies of this bacterium and different genotypes within subspecies in...

Natural Competence and Recombination in the Plant Pathogen Xylella fastidiosa

Homologous recombination is one of many forces contributing to the diversity, adaptation, and emergence of pathogens. For naturally competent bacteria, transformation is one possible route for the ...

New Coffee Plant-Infecting Xylella fastidiosa Variants Derived via Homologous Recombination

Xylella fastidiosa is a xylem-limited phytopathogenic bacterium endemic to the Americas that has recently emerged in Asia and Europe. Although this bacterium is classified as a quarantine organism ...

The single "Extracytoplasmic-Function sigma factor of Xylella fastidiosa is involved in the heat shock response and presents an unusual regulatory mechanism

Genome sequence analysis of the bacterium Xylella fastidiosa revealed the presence of two genes, named rpoE and rseA, predicted to encode an extracytoplasmic function (ECF) sigma factor and an anti...