Comparative phylogenomics and multi-gene cluster analyses of the Citrus Huanglongbing (HLB)-associated bacterium Candidatus Liberibacter
2008

Genomic Analysis of Citrus Huanglongbing Bacterium

publication Evidence: moderate

Author Information

Author(s): Doddapaneni Harshavardhan, Liao Huihong, Lin Hong, Bai Xianjin, Zhao Xiaolong, Civerolo Edwin L, Irey Michael, Coletta-Filho Helvecio, Pietersen Gerhard

Primary Institution: USDA-ARS. San Joaquin Valley Agricultural Science Center

Hypothesis

Expanding the genetic knowledge of Candidatus Liberibacter may help develop effective strategies for controlling Huanglongbing.

Conclusion

The study provides new insights into the genomic evolution of Candidatus Liberibacter and its relationship with other bacteria.

Supporting Evidence

  • The study cloned and characterized 14.7 Kb of new genomic sequences from Candidatus Liberibacter asiaticus.
  • Phylogenetic analysis placed Candidatus Liberibacter as a new clade in the α-proteobacteria.
  • The research identified sequence variations and gene conservation among different Candidatus Liberibacter species.

Takeaway

Scientists studied a bacterium that harms citrus trees to learn more about its genes, which could help protect the trees.

Methodology

The study involved cloning and characterizing genomic DNA from Candidatus Liberibacter asiaticus using a genomic walking method.

Digital Object Identifier (DOI)

10.1186/1756-0500-1-72

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