Miniaturization, Genome Size and the Origin of Functional Constraints in the Visual System of Salamanders

Naturwissenschaften. 1988 Jun;75(6):297-304. doi: 10.1007/BF00367320.


During their evolution, many species of lungless salamanders (fam. Plethodontidae) have experienced a great increase in genome size and consequently in the size of their cells, including sensory receptors and neurons. In addition, some have become extremely miniaturized. The consequences of these events and the morphological compensatory processes are studied in the visual system of juvenile and adult salamanders.

Publication types

  • Comparative Study
  • Research Support, Non-U.S. Gov't

MeSH terms

  • Animals
  • Biological Evolution*
  • Body Constitution
  • Brain / physiology*
  • DNA / genetics
  • Genes*
  • Neurons / physiology
  • Species Specificity
  • Urodela / genetics*
  • Vision, Ocular*


  • DNA