From: The male germ cell gene regulator CTCFL is functionally different from CTCF and binds CTCF-like consensus sites in a nucleosome composition-dependent manner
Genotype
Ctcfl del/+
Ctcfl del/del
Number (percentage) of breedings w/o offspring
3/60 (5%)
14/27 (51.9%)
Average number of offspring per litter (± SD)
7.7 ± 2.6
6.4 ± 2.8