Article
Extensive gene duplication in the early evolution of animals before the parazoan-eumetazoan split demonstrated by G proteins and protein tyrosine kinases from sponge and hydra.
Journal of molecular evolution - 1 Jun 1999
Suga H, Koyanagi M, Hoshiyama D, Ono K, Iwabe N, Kuma K, Miyata T
Abstract excerpt
To know whether genes involved in cell-cell communication typical of multicellular animals dramatically increased in concert with the Cambrian explosion, the rapid evolutionary burst in the major groups of animals, and whether these genes exist in the sponge lacking cell cohesiveness and coordination typical of eumetazoans, we have carried out cloning of the G-protein alpha subunit (Galpha) and the protein...
Topics
- Amino Acid Substitution
- Animals
- Evolution, Molecular
- Fungi
- GTP-Binding Proteins
- Gene Duplication
- Genetic Variation
- Humans
- Hydra
- Molecular Sequence Data
- Phylogeny
- Plants
- Porifera
- Protein-Tyrosine Kinases