Hagfish genome sequence sheds light on early vertebrate genome evolution
Author:
Publisher
Springer Science and Business Media LLC
Subject
Ecology,Ecology, Evolution, Behavior and Systematics
Link
https://www.nature.com/articles/s41559-023-02302-7.pdf
Reference5 articles.
1. Dehal, P. & Boore, J. L. Two rounds of whole genome duplication in the ancestral vertebrate. PLoS Biol 3, e314 (2005). This article reports a genome-wide comparative analysis across chordate species and provides convincing evidence that the vertebrate genome was shaped after two WGD events.
2. Putnam, N. H. et al. The amphioxus genome and the evolution of the chordate karyotype. Nature 453, 1064–71 (2008). This article reports a draft assembly of the amphioxus genome, and its comparative analysis with the human genome confirmed the 2R hypothesis in gnathostomes and established a model of an ancestral vertebrate karyotype with 17 chromosomes.
3. Nakatani, Y. et al. Reconstruction of proto-vertebrate, proto-cyclostome and proto-gnathostome genomes provides new insights into early vertebrate evolution. Nat. Commun. 12, 4489 (2021). This paper reports reconstructions of the ancestral genomes of vertebrates, jawed vertebrates and jawless vertebrates, which suggest that the ancestral vertebrate genome consisted of 18 chromosomes and that jawless vertebrates evolved through a hexaploidization event.
4. Marlétaz, F. et al. Amphioxus functional genomics and the origins of vertebrate gene regulation. Nature 564, 64–70 (2018). This paper investigates a second amphioxus genome through functional genomic analysis, and reports that jawed vertebrates evolved through an increase in gene regulatory complexity (particularly in developmental genes).
5. Simakov, O. et al. Deeply conserved synteny resolves early events in vertebrate evolution. Nat. Ecol. Evol. 4, 820–830 (2020). This study provides a chromosome-scale genome for an amphioxus and, through a robust macrosynteny analysis, reports (to our knowledge) the most accurate reconstruction of vertebrate karyotype evolution to date, suggesting that 1R and 2R were autopolyploidy and allopolyploidy events, respectively.
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