FIG. 5.

HR competes with de novo telomere addition for resected ends. Analysis of the frequency of break-induced LOH mechanisms in rhp55Δ, exo1Δ, and exo1Δ rhp55Δ backgrounds (A); ku70Δ and lig4Δ backgrounds (B); ku70Δ rhp55Δ and lig4Δ rhp55Δ backgrounds (C); and rhp55Δ+pIRT3 and rhp55Δ+pIRT3-rhp51 strains (D). The percentages of LOH colonies exhibiting Ch^x (white), telomere addition (gray), or “other” (including ade⁻ G418^s his⁺ colonies; black) are shown for each background. Error bars (standard errors of the mean) for LOH values are shown. wt, wild type.