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Fig. 1 | BMC Genomics

Fig. 1

From: Transcriptomic analysis of the differentiating ovary of the protogynous ricefield eel Monopterus albus

Fig. 1

The gonadal histology of ricefield eel larvae. a The gonad at 6 dph. The primordial germ cell (PGC) was in isolated states. b The gonad at 9 dph. The ovarian cavities could be observed. c The gonad at 12 dph. The number of PGCs increased greatly and the majority of germ cells showed clear borders and most likely developed as oogonia. d The gonad at 20 dph. The cytoplasm of oogonium was inconspicuous, and the borders of nuclei were very clear. Some germ cells () containing condensate chromatins might have developed into pachytene oocytes. The inset is the magnification of the boxed area in each image (Scale bar = 5 μm). PGC, Primordial germ cell; BV, blood vessel; IN, intestine; YS, yolk sac; MD, mesonephric duct; KI, kidney; ME, mesentery; GW, gonadal wall; MO, mesogonium; NU, nucleolus; OC, ovarian cavity; Oog, oogonium; Oo, oocytes; dph, days post hatching; Scale bar = 25 μm except the insets

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