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Fig. 2 | BMC Evolutionary Biology

Fig. 2

From: Sperm competition-induced plasticity in the speed of spermatogenesis

Fig. 2

Plasticity in testis size and spermatogenesis kinetics according to the social environment in Macrostomum lignano. In octets compared to pairs, flatworms exhibit a greater relative investment in testes (i.e., a larger residual testis area) and b an increased speed of spermatogenesis, here visualized as the observed proportion of worms exhibiting BrdU-pulse labelled elongated spermatids in their testes, for octets (open circles) and pairs (filled circles) 5-7d after a 30 min pulse administration of BrdU

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