Premium
Morphological evolution of the vertebrate forebrain: From mechanical to cellular processes
Author(s) -
Aboitiz Francisco,
Montiel Juan F.
Publication year - 2019
Publication title -
evolution and development
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.651
H-Index - 78
eISSN - 1525-142X
pISSN - 1520-541X
DOI - 10.1111/ede.12308
Subject(s) - vertebrate , biology , forebrain , neurogenesis , neuroscience , divergence (linguistics) , evolutionary biology , simple (philosophy) , anatomy , central nervous system , genetics , gene , linguistics , philosophy , epistemology
Although the cerebral hemispheres are among the defining characters of vertebrates, each vertebrate class is characterized by a different anatomical organization of this structure, which has become highly problematic for comparative neurobiology. In this article, we discuss some mechanisms involved in the generation of this morphological divergence, based on simple spatial constraints for neurogenesis and mechanical forces generated by increasing neuronal numbers during development, and the different cellular strategies used by each group to overcome these limitations. We expect this view to contribute to unify the diverging vertebrate brain morphologies into general, simple mechanisms that help to establish homologies across groups.