The whole-genome duplication events leading to jawed vertebrates
A diagram showing the evolution of vertebrate chromosomes from an invertebrate ancestor through two whole-genome duplication events (shown as starbursts). For simplicity, only one ancestral pair of chromosomes is shown. The study found that two now-extinct ancestors, alpha and beta, hybridized during duplication #2 to give rise to the jawed vertebrate lineage. After duplication, the beta chromosomes became more degraded than the more robust alpha chromosomes.
Date:
20 April 2020
Copyright OIST (Okinawa Institute of Science and Technology Graduate University, 沖縄科学技術大学院大学). Creative Commons Attribution 4.0 International License (CC BY 4.0).
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