question: Do yeast LTR give rise to circular DNA?
answer: A recent study on circular DNAs in yeast found that transposable element sequence residing in circular structures mostly corresponded to full-length transposable elements. Circular retrotransposition products are generated by a LINE retrotransposon. Yeast LTR elements generate circular DNAs through recombination events between their flanking long terminal repeats (LTRs). Circular DNAs can be generated by recombination between LTRs residing at different genomic loci, in which case the circular DNA will contain the intervening sequence.