TY  - JOUR
AU  - Sharma, Vikas
AU  - Hünnefeld, Max
AU  - Luthe, Tom
AU  - Frunzke, Julia
TI  - Systematic analysis of prophage elements in actinobacterial genomes reveals a remarkable phylogenetic diversity
JO  - Scientific reports
VL  - 13
IS  - 1
SN  - 2045-2322
CY  - [London]
PB  - Macmillan Publishers Limited, part of Springer Nature
M1  - FZJ-2023-01539
SP  - 4410
PY  - 2023
N1  - IBT-1
AB  - Actinobacteria represent one of the largest bacterial phyla harboring many species of high medical, biotechnological and ecological relevance. Prophage elements are major contributors to bacterial genome diversity and were shown to significantly shape bacterial fitness and host-microbe interactions. In this study, we performed a systematic analysis of prophage elements in 2406 complete actinobacterial genomes. Overall, 2106 prophage elements were predicted to be present in about 50% (1172/2406) of the analyzed datasets. Interestingly, these identified sequences compose a high prevalence of cryptic prophage elements, indicating genetic decay and domestication. Analysis of the sequence relationship of predicted prophages with known actinobacteriophage genomes revealed an exceptional high phylogenetic diversity of prophage elements. As a trend, we observed a higher prevalence of prophage elements in vicinity to the terminus. Analysis of the prophage-encoded gene functions revealed that prophage sequences significantly contribute to the bacterial antiviral immune system, but no biosynthetic gene clusters involved in the synthesis of known antiphage molecules were identified in prophage genomes. Overall, the current study highlights the remarkable diversity of prophages in actinobacterial genomes, with highly divergent prophages in actinobacterial genomes and thus provides an important basis for further investigation of phage-host interactions in this important bacterial phylum.
LB  - PUB:(DE-HGF)16
C6  - 36932119
UR  - <Go to ISI:>//WOS:000955841200051
DO  - DOI:10.1038/s41598-023-30829-z
UR  - https://juser.fz-juelich.de/record/1005578
ER  -