Neurons with larval synaptic targets pioneer the later nervous system in the annelid Malacoceros fuliginosus.

ABSTRACT: Comparative studies on the development of nervous systems have a significant impact on understanding animal nervous system evolution. Nevertheless, an important question is to what degree neuronal structures, which play an important role in early stages, become part of the adult nervous system or are relevant for its formation. This is likely in many direct developers, but it is not the case in forms with catastrophic metamorphosis. It is not clear in many forms with gradual metamorphosis. This introduces uncertainty in tracing the evolution of nervous systems and of larval forms. One of the prominent larval characteristics of numerous planktonic marine organisms is the epidermal ciliation used for swimming and steering, which disappears during metamorphosis. Therefore, the neuronal elemen

SUBMITTER: Seybold A 

PROVIDER: S-EPMC11770012 | biostudies-literature | 2024

REPOSITORIES: biostudies-literature