Similar globozoospermia-like phenotypes were reported for other mouse lines, including Azh, Gopc and Hrb mutant mice (Mochida et al., 1999; Suzuki-Toyota et al., 2004; Juneja and van Deursen, 2005; Suzuki-Toyota et al., 2007). Here, AGFG1 is linked to Globozoospermia.