ArticleMolecular biology and evolution2021
Avian Neo-Sex Chromosomes Reveal Dynamics of Recombination Suppression and W Degeneration.
Article in Molecular biology and evolution, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 36 papers.
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Who cites it
36 citing papers in PubMed.
- Selective Regimes and Evolutionary Dynamics of Z and W Gametologs Across an Expanded Avian Neo-Sex Chromosome.Genome biology and evolution · 2026Article
- Evolutionary dynamics of enlarged neo-sex chromosomes and novel pseudoautosomal regions in Sylvioidea songbirds.Communications biology · 2026Article
- Centromeric satellite expansion drives genome evolution in the snowy owl.Genome biology · 2026Article
- Causes and consequences of sex-chromosome turnovers in Diptera.Evolution letters · 2026Article
- Article
- Unique sex chromosome translocations and evolutionary strata in two Sylvioidea songbird families.BMC genomics · 2026Article
- A highly contiguous genome assembly for the wrentit (Chamaea fasciata), the sole representative of the babbler radiation in the Americas.The Journal of heredity · 2026Article
- Article
- Neo-sex Chromosomes Track the Mitochondrial Phylogeny and Exhibit an Extensive Added Stratum of Recombination Suppression in Honeyeaters (Aves: Meliphagidae).Genome biology and evolution · 2025Article
- Genomic resources for comparative analyses of obligate avian brood parasitism.bioRxiv : the preprint server for biology · 2025Article
- Genomic origins and evolution of neo-sex chromosomes in Pacific Island birds.Proceedings of the National Academy of Sciences of the United States of America · 2025Article
- Evidence for evolution of a new sex chromosome within the haploid-dominant Marchantiales plant lineage.Journal of integrative plant biology · 2025Article
- Incomplete recombination suppression fuels extensive haplotype diversity in a butterfly colour pattern supergene.PLoS biology · 2025Article
- Hierarchical architecture of neo-sex chromosomes and accelerated adaptive evolution in tortricid moths.Genome research · 2025Article
- Orthopteran Neo-Sex Chromosomes Reveal Dynamics of Recombination Suppression and Evolution of Supergenes.Molecular ecology · 2024Article
- Article
- Sex Chromosome Evolution: Hallmarks and Question Marks.Molecular biology and evolution · 2024Review
- Beyond genes-for-behaviour: The potential for genomics to resolve long-standing questions in avian brood parasitism.Ecology and evolution · 2024Review
- Male-biased recombination at chromosome ends in a songbird revealed by precisely mapping crossover positions.G3 (Bethesda, Md.) · 2024Article
- The rate of W chromosome degeneration across multiple avian neo-sex chromosomes.Scientific reports · 2024Article
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Authors and funding
14 authors.
Funding
No grant is acknowledged in the PubMed record.
Abstract
How the avian sex chromosomes first evolved from autosomes remains elusive as 100 million years (My) of divergence and degeneration obscure their evolutionary history. The Sylvioidea group of songbirds is interesting for understanding avian sex chromosome evolution because a chromosome fusion event ∼24 Ma formed "neo-sex chromosomes" consisting of an added (new) and an ancestral (old) part. Here, we report the complete female genome (ZW) of one Sylvioidea species, the great reed warbler (Acrocephalus arundinaceus). Our long-read assembly shows that the added region has been translocated to both Z and W, and whereas the added-Z has retained its gene order the added-W part has been heavily rearranged. Phylogenetic analyses show that recombination between the homologous added-Z and -W regions continued after the fusion event, and that recombination suppression across this region took several million years to be completed. Moreover, recombination suppression was initiated across multiple positions over the added-Z, which is not consistent with a simple linear progression starting from the fusion point. As expected following recombination suppression, the added-W show signs of degeneration including repeat accumulation and gene loss. Finally, we present evidence for nonrandom maintenance of slowly evolving and dosage-sensitive genes on both ancestral- and added-W, a process causing correlated evolution among orthologous genes across broad taxonomic groups, regardless of sex linkage.
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