Objective: The objective of the research presented here was to determine whether autonomous replication sequences (ARS) discovered in the eccDNA replicon of glyphosate resistant Amaranthus palmeri enable self-replication in a yeast system.
Results: Sequence analysis of the eccDNA replicon revealed a region of sharp changes in A + T/G + C content with characteristic bending indicative of an autonomous replication sequence. Further sequence analysis revealed an extended autonomous replication sequence (EACS) in close proximity to multiple DNA unwinding element (DUE) sequences. This region of the eccDNA replicon enabled autonomous replication of an ARS-less yeast plasmid.
Keywords: Autonomous replication; DNA bending; EACS; eccDNA replicon.