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Blanchoud S, Galliot B, editors. Whole-Body Regeneration: Methods and Protocols [Internet]. New York (NY): Humana; 2022. doi: 10.1007/978-1-0716-2172-1_11

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Whole-Body Regeneration: Methods and Protocols [Internet].

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Fig. 1. Platynereis dumerilii.

Fig. 1

Platynereis dumerilii. Pictures of juvenile and adult (male and female) worms. Males and females harbor specific morphological features linked to sexual metamorphosis, notably their color. While juveniles are mainly brownish, females are bright yellow, as they are full of oocytes. Males are white in their anterior part, as they are full of sperm, and red in their posterior part, due to extensive accessory blood capillaries. Morphological differences between juveniles and maturing worms are not limited to their color. Indeed, during sexual maturation, the whole intestine of the worm regresses and the trunk of the animal is progressively modified to become a bag full of gametes. In addition, mature worms harbor bigger and darker eyes compared to juveniles

From: Chapter 11, Studying Annelida Regeneration Using Platynereis dumerilii

Copyright 2022, The Author(s)

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