Claim · model-written summary
The introgression test found seven regions of introgression covering 52% of the 4,161 bp sequenced at the MLST targets.
- Interactor
- Xylella fastidiosa subsp. pauca
Xylella fastidiosa subsp. paucae0pathogen - Outcome
- regions of introgressione4
- Value
- 52%e4
CitrusNot reportedMaterialGeneCompoundOrgan / stageSecond interactorSecond interactor roleTreatmentComparatorSettingDirectionQualifier
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“We used multilocus sequence typing (MLST) to study this issue in Xylella fastidiosa subsp. pauca from Brazil, a bacterium causing citrus variegated chlorosis (CVC) and coffee leaf scorch (CLS)”
e4“the seven randomly chosen MLST targets contained seven regions of introgression totaling 2,172 bp of 4,161 bp (52%)”
Title
Leonard Nunney; Xiaoli Yuan; Robin E. Bromley; et al. Applied and Environmental Microbiology 2012. doi:10.1128/aem.01126-12
Other claims from this paper (5)
- Observation The 55 citrus isolates of Xylella fastidiosa subsp. pauca defined three similar sequence types dominated by ST11 (85%).
- Observation The 22 coffee isolates of Xylella fastidiosa subsp. pauca defined two sequence types, mainly ST16 (74%).
- Observation Allelic differences at five loci in Xylella fastidiosa subsp. pauca isolates were unusually large, above 1% divergence with no intermediates.
- Method / resource Only 10% of the introgressed sequence was detected by other recombination tests.
- Mechanism High introgression suggests that the subspecies became pathogenic on citrus and coffee only recently, after gaining variation via intersubspecific recombination.