ArticleJournal of evolutionary biology2022
Recent expansion of the non-recombining sex-linked region on Silene latifolia sex chromosomes.
Article in Journal of evolutionary biology, 2022. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 13 papers.
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13 citing papers in PubMed.
- Ancient but dynamic: structural expansion, massive gene duplication, and transposable element colonization in a supergene controlling ant social organization.Molecular biology and evolution · 2026Article
- A haplotype-resolved nutmeg genome reveals XY sex chromosome evolution and enables molecular sexing.Communications biology · 2026Article
- The Evolution of Locally Adaptive Chromosome Inversions in Mimulus guttatus.Molecular ecology · 2025Article
- Evolution and functioning of an X-A balance sex-determining system in hops.Nature plants · 2025Article
- Orthopteran Neo-Sex Chromosomes Reveal Dynamics of Recombination Suppression and Evolution of Supergenes.Molecular ecology · 2024Article
- Sex chromosome turnover plays an important role in the maintenance of barriers to post-speciation introgression in willows.Evolution letters · 2024Article
- Sex chromosome cycle as a mechanism of stable sex determination.Journal of biochemistry · 2024Review
- Why should we study plant sex chromosomes?The Plant cell · 2024Review
- Evolution of a plant sex chromosome driven by expanding pericentromeric recombination suppression.Scientific reports · 2024Article
- Can a Y Chromosome Degenerate in an Evolutionary Instant? A Commentary on Fong et al. 2023.Genome biology and evolution · 2023Article
- The origin and evolution of sex chromosomes, revealed by sequencing of the Silene latifolia female genome.Current biology : CB · 2023Article
- Heterochiasmy and Sex Chromosome Evolution inGenes · 2023Article
- Recent expansion of the non-recombining sex-linked region on Silene latifolia sex chromosomes.Journal of evolutionary biology · 2022Article
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Abstract
Evolution of a non-recombining sex-specific region on the Y (or W) chromosome (NRY) is a key step in sex chromosome evolution, but how recombination suppression evolves is not well understood. Studies in many different organisms indicated that NRY evolution often involves several expansion steps. Why such NRY expansions occur remains unclear, although it is though that they are likely driven by sexually antagonistic selection. This paper describes a recent NRY expansion due to shift of the pseudoautosomal boundary on the sex chromosomes of a dioecious plant Silene latifolia. The shift resulted in inclusion of at least 16 pseudoautosomal genes into the NRY. This region is pseudoautosomal in closely related Silene dioica and Silene diclinis, indicating that the NRY expansion occurred in S. latifolia after it speciated from the other species ~120 thousand years ago. As S. latifolia and S. dioica actively hybridise across Europe, interspecific gene flow could blur the PAR boundary in these species. The pseudoautosomal genes have significantly elevated genetic diversity (π ~ 3% at synonymous sites), which is consistent with balancing selection maintaining diversity in this region. The recent shift of the PAR boundary in S. latifolia offers an opportunity to study the process of on-going NRY expansion.
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