Behavioral transformations during metamorphosis

Remodeling of neural and motor systems

Christos Consoulas, Carsten Duch, Ronald J. Bayline, Richard B Levine

Research output: Contribution to journalArticle

91 Citations (Scopus)

Abstract

During insect metamorphosis, neural and motor systems are remodeled to accommodate behavioral transformations. Nerve and muscle cells that are required for larval behavior, such as crawling, feeding and ecdysis, must either be replaced or respecified to allow adult emergence, walking, flight, mating and egg-laying. This review describes the types of cellular changes that occur during metamorphosis, as well as recent attempts to understand how they are related to behavioral changes and how they are regulated. Within the periphery, many larval muscles degenerate at the onset of metamorphosis and are replaced by adult muscles, which are derived from myoblasts and, in some cases, remnants of the larval muscle fibers. The terminal processes of many larval motoneurons persist within the periphery and are essential for the formation of adult muscle fibers. Although most adult sensory neurons are born postembryonically, a subset of larval proprioceptive neurons persist to participate in adult behavior. Within the central nervous system, larval neurons that will no longer be necessary die and some adult interneurons are born postembryonically. By contrast, all of the adult motoneurons, as well as some interneurons and modulatory neurons, are persistent larval cells. In accordance with their new behavioral roles, these neurons undergo striking changes in dendritic morphology, intrinsic biophysical properties, and synaptic interactions.

Original languageEnglish (US)
Pages (from-to)571-583
Number of pages13
JournalBrain Research Bulletin
Volume53
Issue number5
DOIs
StatePublished - Nov 15 2000

Fingerprint

Neurons
Muscles
Motor Neurons
Interneurons
Molting
Myoblasts
Sensory Receptor Cells
Muscle Cells
Walking
Ovum
Insects
Central Nervous System

Keywords

  • Drosophila
  • Manduca
  • Neuromuscular
  • Plasticity

ASJC Scopus subject areas

  • Neuroscience(all)

Cite this

Behavioral transformations during metamorphosis : Remodeling of neural and motor systems. / Consoulas, Christos; Duch, Carsten; Bayline, Ronald J.; Levine, Richard B.

In: Brain Research Bulletin, Vol. 53, No. 5, 15.11.2000, p. 571-583.

Research output: Contribution to journalArticle

Consoulas, Christos ; Duch, Carsten ; Bayline, Ronald J. ; Levine, Richard B. / Behavioral transformations during metamorphosis : Remodeling of neural and motor systems. In: Brain Research Bulletin. 2000 ; Vol. 53, No. 5. pp. 571-583.
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