TABLE 2.

The cellular associations used in defining the spermatogenic stages of the naked mole-rat.

Stage	Spermatogonia (Sg) and spermatocyte associations	Spermatid types	Depicted
I/II	A type Sg, Leptotene, Pachytene	Sa (round), Sd (elongated)	Figure 6A
III	A type Sg, Preleptotene, Pachytene	Sb (acrosome formation)	Figure 6B
IV	A type Sg, Leptotene, Pachytene	Sc (condensed/elongated)	Figure 6C
V/VI	A type Sg, Zygotene	Sc, Sd (elongated/mature)	Figure 6D

Sa, Sb, Sc, Sd = four developmental stages of spermatids.