L. kluyveri has a permissive mechanism of ARS selection relative to S. cerevisiae and K. lactis . Sc ARS , Lk ARS, and Kl ARS plasmids were transformed into S. cerevisiae , L. kluyveri , and K. lactis and assayed for ARS function in the different species. The 'ARS source' column denotes the origin of the ARS, while the 'functions in' column denotes proportion of ARSs that are functional in the listed species. *: of the 80%, 20% of show weak ARS activity while 60% show strong ARS activity in L. kluyveri. 'WGD' denotes the whole genome duplication event leading to the S. cerevisiae lineage.