ArticleScientific reports2024
Evolution of a plant sex chromosome driven by expanding pericentromeric recombination suppression.
Article in Scientific reports, 2024. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 9 papers.
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Who cites it
9 citing papers in PubMed.
- Article
- Silene, a versatile model system: from sex and genome evolution to ecology and speciation.The New phytologist · 2026Review
- A haplotype-resolved nutmeg genome reveals XY sex chromosome evolution and enables molecular sexing.Communications biology · 2026Article
- Whole-genome sequencing reveals a possible molecular basis of sex determination in the dioecious wild yam Dioscorea tokoro.PLoS genetics · 2026Article
- Multiple Origins of Sex Chromosomes in Nothobranchius Killifishes.Molecular ecology · 2025Article
- Extensive Recombination Suppression and Genetic Degeneration of a Young ZW Sex Chromosome System in Halfbeak Fish.Molecular biology and evolution · 2025Article
- Evolution and functioning of an X-A balance sex-determining system in hops.Nature plants · 2025Article
- ProSeq4: A user-friendly multiplatform program for preparation and analysis of large-scale DNA polymorphism datasets.Molecular ecology resources · 2024Article
- Pericentromeric recombination suppression and the 'large X effect' in plants.Scientific reports · 2023Article
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Abstract
Recombination suppression around sex-determining gene(s) is a key step in evolution of sex chromosomes, but it is not well understood how it evolves. Recently evolved sex-linked regions offer an opportunity to understand the mechanisms of recombination cessation. This paper analyses such a region on Silene latifolia (Caryophyllaceae) sex chromosomes, where recombination was suppressed in the last 120 thousand years ("stratum 3"). Locating the boundaries of the stratum 3 in S. latifolia genome sequence revealed that this region is far larger than assumed previously-it is about 14 Mb long and includes 202 annotated genes. A gradient of X:Y divergence detected in the stratum 3, with divergence increasing proximally, indicates gradual recombination cessation, possibly caused by expansion of pericentromeric recombination suppression (PRS) into the pseudoautosomal region. Expansion of PRS was also the likely cause for the formation of the older stratum 2 on S. latifolia sex chromosomes. The role of PRS in sex chromosome evolution has been underappreciated, but it may be a significant factor, especially in the species with large chromosomes where PRS is often extensive.
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