Back to Search
Start Over
Genomic consequences of domestication of the Siamese fighting fish
- Source :
- Science Advances
- Publication Year :
- 2022
-
Abstract
- Siamese fighting (betta) fish are among the most popular and morphologically diverse pet fish, but the genetic bases of their domestication and phenotypic diversification are largely unknown. We assembled de novo the genome of a wildBetta splendensand whole-genome sequenced 98 individuals across five closely related species. We find evidence of bidirectional hybridization between domesticated ornamental betta and other wildBettaspecies. We discoverdmrt1as the main sex determination gene in ornamental betta and that it has lower penetrance in wildB. splendens. Furthermore, we find genes with signatures of recent, strong selection that have large effects on color in specific parts of the body or on the shape of individual fins and that most are unlinked. Our results demonstrate how simple genetic architectures paired with anatomical modularity can lead to vast phenotypic diversity generated during animal domestication and launch betta as a powerful new system for evolutionary genetics.
- Subjects :
- SEX DETERMINATION
Multidisciplinary
Science & Technology
Genome
NEURAL CREST
ZEBRAFISH
Fishes
ASSOCIATION
Genomics
GENE
DMRT1
Multidisciplinary Sciences
Domestication
REVEALS
Animal Fins
Science & Technology - Other Topics
Animals
BETTA-SPLENDENS
MEDAKA
SPECIFICATION
Biology
Engineering sciences. Technology
Subjects
Details
- ISSN :
- 23752548
- Volume :
- 8
- Issue :
- 10
- Database :
- OpenAIRE
- Journal :
- Science advances
- Accession number :
- edsair.doi.dedup.....785b1514f661fe8457ae8fbf5a562be2