PUBLICATION
Coevolution of enamel, ganoin, enameloid, and their matrix SCPP genes in osteichthyans
- Authors
- Kawasaki, K., Keating, J.N., Nakatomi, M., Welten, M., Mikami, M., Sasagawa, I., Puttick, M.N., Donoghue, P.C.J., Ishiyama, M.
- ID
- ZDB-PUB-210129-10
- Date
- 2021
- Source
- iScience 24: 102023 (Journal)
- Registered Authors
- Keywords
- Evolutionary Biology, Evolutionary Processes, Paleobiology, Phylogenetics
- MeSH Terms
- none
- PubMed
- 33506188 Full text @ iScience
Citation
Kawasaki, K., Keating, J.N., Nakatomi, M., Welten, M., Mikami, M., Sasagawa, I., Puttick, M.N., Donoghue, P.C.J., Ishiyama, M. (2021) Coevolution of enamel, ganoin, enameloid, and their matrix SCPP genes in osteichthyans. iScience. 24:102023.
Abstract
We resolve debate over the evolution of vertebrate hypermineralized tissues through analyses of matrix protein-encoding secretory calcium-binding phosphoprotein (SCPP) genes and phylogenetic inference of hypermineralized tissues. Among these genes, AMBN and ENAM are found in both sarcopterygians and actinopterygians, whereas AMEL and SCPP5 are found only in sarcopterygians and actinopterygians, respectively. Actinopterygian AMBN, ENAM, and SCPP5 are expressed during the formation of hypermineralized tissues on scales and teeth: ganoin, acrodin, and collar enamel in gar, and acrodin and collar enameloid in zebrafish. Our phylogenetic analyses indicate the emergence of an ancestral enamel in stem-osteichthyans, whereas ganoin emerged in stem-actinopterygians and true enamel in stem-sarcopterygians. Thus, AMBN and ENAM originated in concert with ancestral enamel, SCPP5 evolved in association with ganoin, and AMEL evolved with true enamel. Shifts in gene expression domain and timing explain the evolution of different hypermineralized tissues. We propose that hypermineralized tissues in osteichthyans coevolved with matrix SCPP genes.
Genes / Markers
Expression
Phenotype
Mutations / Transgenics
Human Disease / Model
Sequence Targeting Reagents
Fish
Orthology
Engineered Foreign Genes
Mapping