increased origin firing efficiency increased origin firing efficiency in subtelomeric heterochromatin 2019-08-19T15:33:34Z increased origin firing efficiency at subtelomeric heterochromatin increased origin firing efficiency in subtelomeric heterochromatin during vegetative growth increased origin firing efficiency in subtelomeric heterochromatin during mitotic cell cycle increased origin firing efficiency in telomeric heterochromatin midori FYPO:0007068 A regulation phenotype observed in the vegetative growth phase of the life cycle in which the probability that a DNA replication will initiate at a particular replication origin located in heterochromatin at subtelomeric regions is higher than in wild type. In cells with increased origin firing efficiency, genomic DNA replication initiates from more origins than wild type, and is completed in more, smaller segments, than wild type.