ArticleNature ecology & evolution2019
Dynamic evolutionary history and gene content of sex chromosomes across diverse songbirds.
Article in Nature ecology & evolution, 2019. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 62 papers.
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62 citing papers in PubMed, 102 citations in OpenAlex.
- 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
- Unique sex chromosome translocations and evolutionary strata in two Sylvioidea songbird families.BMC genomics · 2026Article
- First whole-genome assembly of the Galápagos Petrel (Pterodroma phaeopygia) using Oxford Nanopore sequencing to advance conservation genomics in a critically endangered seabird.G3 (Bethesda, Md.) · 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
- Review
- 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
- Assembly of female and male hihi genomes (stitchbird; Notiomystis cincta) enables characterization of the W chromosome and resources for conservation genomics.Molecular ecology resources · 2025Article
- Assembly and analysis of Sinipercidae fish sex chromosomes reveals that a supergene drives sex chromosome origin and turnover.Advanced biotechnology · 2025Article
- When did recombination suppression events occur in bird ZW sex chromosomes?Nature communications · 2025Article
- Transposable elements shape the landscape of heterozygous structural variation in a bird genome.Zoological research · 2025Article
- A reference genome for the Harpy Eagle reveals steady demographic decline and chromosomal rearrangements in the origin of Accipitriformes.Scientific reports · 2024Article
- Comparative genomics illuminates karyotype and sex chromosome evolution of sharks.Cell genomics · 2024Article
- Hybridization in birds-of-paradise: Widespread ancestral gene flow despite strong sexual selection in a lek-mating system.iScience · 2024Article
- The rate of W chromosome degeneration across multiple avian neo-sex chromosomes.Scientific reports · 2024Article
- A chromosome-level genome assembly of the Asian house martin implies potential genes associated with the feathered-foot trait.G3 (Bethesda, Md.) · 2024Article
- Exciting times for evolutionary biology.Nature ecology & evolution · 2024Article
- Turnovers of Sex-Determining Mutation in the Golden Pompano and Related Species Provide Insights into Microevolution of Undifferentiated Sex Chromosome.Genome biology and evolution · 2024Article
2 more citing papers are in PubMed but not listed here.
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Authors and funding
12 authors at 8 institutions in 7 countries.
Funding
No grant is acknowledged in the PubMed record.
Abstract
Songbirds have a species number close to that of mammals and are classic models for studying speciation and sexual selection. Sex chromosomes are hotspots of both processes, yet their evolutionary history in songbirds remains unclear. We characterized genomes of 11 songbird species, with 5 genomes of bird-of-paradise species. We conclude that songbird sex chromosomes have undergone four periods of recombination suppression before species radiation, producing a gradient of pairwise sequence divergence termed 'evolutionary strata'. The latest stratum was probably due to a songbird-specific burst of retrotransposon CR1-E1 elements at its boundary, instead of the chromosome inversion generally assumed for suppressing sex-linked recombination. The formation of evolutionary strata has reshaped the genomic architecture of both sex chromosomes. We find stepwise variations of Z-linked inversions, repeat and guanine-cytosine (GC) contents, as well as W-linked gene loss rate associated with the age of strata. A few W-linked genes have been preserved for their essential functions, indicated by higher and broader expression of lizard orthologues compared with those of other sex-linked genes. We also find a different degree of accelerated evolution of Z-linked genes versus autosomal genes among species, potentially reflecting diversified intensity of sexual selection. Our results uncover the dynamic evolutionary history of songbird sex chromosomes and provide insights into the mechanisms of recombination suppression.
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