Figure 3From: Evidence for the evolutionary origin of goldfish derived from the distant crossing of red crucian carp × common carpIllustration of the variants of EG individuals and gonadal structure of EG. (a) Red individual; (b) mixed color individual; (c) black individual; (d) III-stage ovary of EG, containing II-phase and III-phase oocytes; (e) mature testis of EG, containing mature spermatozoa, spermatids, and spermatogonia.Back to article page