Publications
| recent evolutionary radiation and host plant specialization in the xylella fastidiosa subspecies native to the united states. | the bacterial pathogen, xylella fastidiosa, infects many plant species in the americas, making it a good model for investigating the genetics of host adaptation. we used multilocus sequence typing (mlst) to identify isolates of the native u.s. subsp. multiplex that were largely unaffected by intersubspecific homologous recombination (ihr) and to investigate how their evolutionary history influences plant host specialization. we identified 110 "non-ihr" isolates, 2 minimally recombinant "intermed ... | 2013 | 23354698 |
| 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 infect different plant hosts, but the genetics of host adaptation are unknown. here we examined the hypothesis that the introduction of novel genetic variation via intersubspecific homologous recombination (ihr) facilitates host shifts. we investigated ihr in 33 x. fastidiosa subsp. multiplex isolates pr ... | 2014 | 24296499 |