Int. J. Dev. Biol. 61: 367 - 374 (2017)
doi: 10.1387/ijdb.160352ss
© UPV/EHU Press

Regulation of body size in Caenorhabditis elegans: effects of environmental factors and the nervous system

Takashi Nagashima1, Shoichi Ishiura2 and Satoshi Suo*,3

1Department of Biological Sciences, Graduate School of Science, The University of Tokyo, Tokyo, 2Department of Medical Life Systems, Faculty of Life and Medical Sciences, Doshisha University, Kyoto and 3Department of Pharmacology, Faculty of Medicine, Saitama Medical University, Saitama, Japan

ABSTRACT Body size is one of the basic traits of animals and is regulated to adapt to the environment. Animals perceive environmental stimuli with sensory neurons, and signals from the nervous system alter the size of organs, thus regulating body size. The model animal Caenorhabditis elegans is particularly suited for genetic analysis of body size regulation, and has already contributed to the elucidation of various genetic pathways that regulate body size. In this review, we summarize the available literature regarding environmental factors that regulate body size and the role of the nervous system in such regulation. We discuss in detail a recent report on body size regulation by the neurotransmitter, dopamine.

Keywords:

body size, environmental factors, dopamine, caenorhabditis elegans

*Corresponding author e-mail: ssuo@saitama-med.ac.jp