Mutations in Ehrlichia chaffeensis Causing Polar Effects in Gene Expression and Differential Host Specificities

dc.citation.doi10.1371/journal.pone.0132657
dc.citation.issn1932-6203
dc.citation.issue7
dc.citation.jtitlePLoS One
dc.citation.spage13
dc.citation.volume10
dc.contributor.authorCheng, C. M.
dc.contributor.authorNair, Arathy D.S.
dc.contributor.authorJaworski, D. C.
dc.contributor.authorGanta, Roman R.
dc.contributor.authoreidarathy
dc.contributor.authoreidrganta
dc.date.accessioned2016-04-04T22:44:57Z
dc.date.available2016-04-04T22:44:57Z
dc.date.issued2015-07-17
dc.date.published2015
dc.descriptionCitation: Cheng, C. M., Nair, A. D. S., Jaworski, D. C., & Ganta, R. R. (2015). Mutations in Ehrlichia chaffeensis Causing Polar Effects in Gene Expression and Differential Host Specificities. Plos One, 10(7), 13. doi:10.1371/journal.pone.0132657
dc.descriptionEhrlichia chaffeensis, a tick-borne rickettsial, is responsible for human monocytic ehrlichiosis. In this study, we assessed E. chaffeensis insertion mutations impacting the transcription of genes near the insertion sites. We presented evidence that the mutations within the E. chaffeensis genome at four genomic locations cause polar effects in altering gene expressions. We also reported mutations causing attenuated growth in deer (the pathogen's reservoir host) and in dog (an incidental host), but not in its tick vector, Amblyomma americanum. This is the first study documenting insertion mutations in E. chaffeensis that cause polar effects in altering gene expression from the genes located upstream and downstream to insertion sites and the differential requirements of functionally active genes of the pathogen for its persistence in vertebrate and tick hosts. This study is important in furthering our knowledge on E. chaffeensis pathogenesis.
dc.identifier.urihttp://hdl.handle.net/2097/32281
dc.relation.urihttps://doi.org/10.1371/journal.pone.0132657
dc.rightsAttribution 4.0 International (CC BY 4.0)
dc.rights.urihttp://creativecommons.org/licenses/by/4.0/
dc.subjectAnaplasma-Marginale
dc.subjectUnited-States
dc.subjectInfection
dc.subjectTransposon
dc.subjectTransmission
dc.subjectMutagenesis
dc.titleMutations in Ehrlichia chaffeensis Causing Polar Effects in Gene Expression and Differential Host Specificities
dc.typeArticle

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