ArticleProceedings. Biological sciences2022
Hybridization order is not the driving factor behind biases in duplicate gene losses among the hexaploid Solanaceae.
Article in Proceedings. Biological sciences, 2022. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 4 papers.
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4 citing papers in PubMed, 4 citations in OpenAlex.
- A Class of Allopolyploidy Showing High Duplicate Retention and Continued Homoeologous Exchanges.Genome biology and evolution · 2025Article
- Gene expression bias between the subgenomes of allopolyploid hybrids is an emergent property of the kinetics of expression.PLoS computational biology · 2024Article
- POInTBMC bioinformatics · 2023Article
- Hybridization order is not the driving factor behind biases in duplicate gene losses among the hexaploid Solanaceae.Proceedings. Biological sciences · 2022Article
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3 authors at 2 institutions in 1 country.
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Abstract
We model the post-hexaploidy evolution of four genomes from the Solanaceae, a group of flowering plants comprising tomatoes, potatoes and their relatives. The hexaploidy that these genomes descend from occurred through two sequential allopolyploidy events and was marked by the unequal losses of duplicated genes from the different progenitor subgenomes. In contrast with the hexaploid Brassiceae (broccoli and its relatives), where the subgenome with the most surviving genes arrived last in the hexaploidy, among the Solanaceae the most preserved subgenome descends from one of the original two tetraploid progenitors. In fact, the last-arriving subgenome in these plants actually has the fewest surviving genes in the modern genomes. We explore whether the distribution of repetitive elements (REs) in these genomes can explain the biases in gene losses, but while the signals we find are broadly consistent with a role for high RE density in driving gene losses, the REs turn over so quickly that little signal of the RE condition at the time of paleopolyploidy is extant in the modern genomes.
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