Acquisition of insertion sequences and the GBSi1 intron by Streptococcus agalactiae isolates correlates with the evolution of the species.
The prevalence of insertion sequences IS1548, IS861, IS1381, and ISSa4 and of the group II intron GBSi1 within Streptococcus agalactiae human isolates strongly correlates with the genetic lineages obtained by multilocus sequence typing. Our results yielded an evolutionary scheme for the acquisition of these genetic elements linked to the ecosystems from which the isolates were obtained.
Héry-Arnaud
Geneviève
G
EA 3854 Bactéries et risque materno-foetal, Département de Microbiologie Médicale et Moléculaire, Faculté de Médecine de Tours, 37032 Tours, France.
Bruant
Guillaume
G
Lanotte
Philippe
P
Brun
Stella
S
Rosenau
Agnès
A
van der Mee-Marquet
Nathalie
N
Quentin
Roland
R
Mereghetti
Laurent
L
D004251:DNA Transposable Elements; D019143:Evolution, Molecular; D006801:Humans; D007438:Introns / Q000235:genetics*; D016254:Mutagenesis, Insertional; D010802:Phylogeny; D015183:Restriction Mapping; D013292:Streptococcus agalactiae / Q000145:classification / Q000235:genetics* / Q000302:isolation & purification
D004251:DNA Transposable Elements