Basal DNA repair machinery is subject to positive selection in ionizing-radiation-resistant bacteria

• Published in: BMC genomics Vol. 9; no. 1; p. 297
• Main Authors: Sghaier, Haïtham, Ghedira, Kaïs, Benkahla, Alia, Barkallah, Insaf
• Format: Journal Article
• Language: English
• Published: England BioMed Central Ltd 21.06.2008; BioMed Central; BMC
• Subjects: Actinobacteria - genetics; Actinobacteria - metabolism; Actinobacteria - radiation effects; Actinomycetales - genetics; Actinomycetales - metabolism; Actinomycetales - radiation effects; Bacteria - genetics; Bacteria - metabolism; Bacteria - radiation effects; Bacterial genetics; Deinococcus - genetics; Deinococcus - metabolism; Deinococcus - radiation effects; Deinococcus geothermalis; Deinococcus radiodurans; Desiccation; DNA repair; DNA Repair - genetics; DNA Repair - radiation effects; Escherichia coli; Genes; Genes, Bacterial; Identification and classification; Life Sciences; Physiological aspects; Radiation Tolerance - genetics; Selection, Genetic; Species Specificity; Thermus thermophilus; Tunisia

Ionizing-radiation-resistant bacteria (IRRB) show a surprising capacity for adaptation to ionizing radiation and desiccation. Positive Darwinian selection is expected to play an important role in this trait, but no data are currently available regarding the role of positive adaptive selection in res...