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. 2015 Dec;19(4):209–215. doi: 10.12717/DR.2015.19.4.209

Fig. 2. Undifferentiated gonad in red spotted grouper at 38 to 60 DPH.

Fig. 2.

(a, b) Gonadal primordium of 38, 40 DPH consisted of germ cells surrounded by a few somatic cells. Scale bar (a) = 50 μm, Scale bar (b) = 20 μm; (c) Blood vessels with red blood cells were first appeared at 45 DPH within the gonadal primordium. Scale bar = 50 μm; (d, e, f) The number of somatic cells and size of gonadal primordium at 50, 55 and 60 DPH increased age-dependently. Scale bar (d, e, f) = 50 μm. GC: germ cell; GP: gonadal primordium; BV: blood vessel; RBC: red blood cell; M: mesentery.