AMB_2024v14n1

Animal Molecular Breeding 2024, Vol.14, No.1, 82-85 http://animalscipublisher.com/index.php/amb 84 Figure 4 Functional effects of vertebrate WGD and gene loss in vertebrates 2 Insights of Research Findings The study, through high-resolution sequencing and analysis of the eel genome, has revealed key events in the early evolution of vertebrates. The genomic structures of eels and lampreys highlight significant differences in their collinearity and chromosomal fusion, supporting their monophyletic grouping. These results suggest that eel chromosomes are typically the result of multiple lamprey chromosomes fusing together, offering a new perspective on the evolution of vertebrate genomes. The study also found multiple whole-genome duplication events during early vertebrate evolution. The first whole-genome duplication (1RV) occurred in the vertebrate ancestor, followed by independent polyploidization events in jawed vertebrates and jawless fish (2RJV and

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