Three consecutive generations of nephridia occur during development of Platynereis dumerilii (Annelida, Polychaeta)

Platynereis dumerilii

A quick guide into the new model annelid Platynereis.

Fluorescent two-color whole mount in situ hybridization in Platynereis dumerilii (Polychaeta, Annelida), an emerging marine molecular model for evolution and development.

Antisense RNA probes were synthesized by in vitro transcription incubating 1 μg linearized plasmid, 2 μL 100 mM dithiothreitol (DTT), 1.3 μL NTP mixture (15.4 mM each ATP, CTP, GTP, and 10 mM UTP), 0.7 μL 10 mM digoxigenin-UTP or fluorescein-UTP (Roche Applied Science, Indianapolis, IN, USA), and 0.5 μL RNAguardTM (Amersham Biosciences, Piscataway, NJ, USA), 2 μL 10× transcription buffer, 1 μL ...

2D tracking of Platynereis dumerilii worms during spawning

Platynereis dumerilii are marine worms that reproduce by external fertilisation and exhibit particular swimming behaviours during spawning. In this paper we propose a novel worm tracking approach that enables the 2D tracking and feature extraction during the spawning process of these worms. The gathered data will be used in the future to characterise and compare male and female spawning behavio...

Foraging and mobility in three species of Aciculata (Annelida: Polychaeta).

Aspects of feeding, such as food capture and ingestion, as well as mobility of the polychaetes Eurythoe complanata, Marphysa formosa and Diopatra aciculata, from São Sebastião Channel (São Sebastião, state of São Paulo) were observed in laboratory conditions. Eurythoe complanata, a carnivorous species, fed exclusively on pieces of fish with the aid of strong muscular retractable lips, and detec...

2D Tracking the Nuptial Dance of Platynereis Dumerilii Worms