(A) Dityrosine fluorescence, as an indicator of sporulation,
was examined after 3 days of sporulation on plates.
(B) Time course of meiotic nuclear divisions; the percentage
of cells containing two or more nuclei is represented.
(C) Spore viability, as assessed by asci dissection, is
presented. At least 144 spores were scored for each strain. Strains used
in (A) are DP421 (wild type), DP994 (H4-K16R), DP1000
(H4-K16Q), DP422 (zip1), DP995
(zip1 H4-K16R) and DP1001 (zip1
H4-K16Q). Strains used in (B) and (C) are
DP634 (wild type), DP635 (H4-K16R), DP636
(H4-K16Q), DP639 (zip1), DP640
(zip1 H4-K16R) and DP641 (zip1
H4-K16Q).