ArticleMolecular ecology resources2021
Chromosome-scale assembly of the genome of Salix dunnii reveals a male-heterogametic sex determination system on chromosome 7.
Article in Molecular ecology resources, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 32 papers.
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32 citing papers in PubMed, 67 citations in OpenAlex.
- Sex chromosome evolution mediated by a large inversion and a possible switch of the sex determination gene.Genome biology · 2026Article
- Recurrent sex chromosome turnover mediated by distinct ARR17 and PISTILLATA duplications in willows.Genome biology · 2026Article
- Development and application of a genotyping by target sequencing single-nucleotide polymorphism array panel in Salix suchowensis.BMC genomics · 2026Article
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- SOI: robust identification of orthologous synteny with the Orthology Index and broad applications in evolutionary genomics.Nucleic acids research · 2025Article
- Chromosome-scale and haplotype-resolved genome assembly ofHorticulture research · 2025Article
- A telomere-to-telomere genome assembly of Salix cheilophila reveals its evolutionary signatures for environmental adaptation.Plant communications · 2025Article
- Evolutionary signatures of the erosion of sexual reproduction genes in domesticated cassava (Manihot esculenta).G3 (Bethesda, Md.) · 2025Article
- Reduced Efficacy of Selection on a Young Z Chromosome Region of Schistosoma japonicum.Genome biology and evolution · 2025Article
- Interactions between chloroplast and mitochondrial genomes in 11Frontiers in plant science · 2025Article
- Identification of a candidate sex determination region and sex-specific molecular markers based on whole-genome re‑sequencing in the sea star Asterias amurensis.DNA research : an international journal for rapid publication of reports on genes and genomes · 2024Article
- Development of sex-specific molecular markers for early sex identification in Hippophae gyantsensis based on whole-genome resequencing.BMC plant biology · 2024Article
- Evolution of Sex-linked Genes and the Role of Pericentromeric Regions in Sex Chromosomes: Insights from Diploid Willows.Molecular biology and evolution · 2024Article
- Sexy ways: approaches to studying plant sex chromosomes.Journal of experimental botany · 2024Review
- Allopolyploidization from two dioecious ancestors leads to recurrent evolution of sex chromosomes.Nature communications · 2024Article
- Sex chromosome turnover plays an important role in the maintenance of barriers to post-speciation introgression in willows.Evolution letters · 2024Article
- Exploring the cobia (Rachycentron canadum) genome: unveiling putative male heterogametic regions and identification of sex-specific markers.GigaScience · 2024Article
- Haplotype-resolved genome assembly of poplar line NL895 provides a valuable tree genomic resource.Forestry research · 2024Article
- Article
- De Novo Assembly and Annotation of 11 Diverse Shrub Willow (International journal of molecular sciences · 2023Article
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14 authors at 5 institutions in 4 countries.
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Abstract
Sex determination systems in plants can involve either female or male heterogamety (ZW or XY, respectively). Here we used Illumina short reads, Oxford Nanopore Technologies (ONT) long reads and Hi-C reads to assemble the first chromosome-scale genome of a female willow tree (Salix dunnii), and to predict genes using transcriptome sequences and available databases. The final genome sequence of 328 Mb in total was assembled in 29 scaffolds, and includes 31,501 predicted genes. Analyses of short-read sequence data that included female and male plants suggested a male heterogametic sex-determining factor on chromosome 7, implying that, unlike the female heterogamety of most species in the genus Salix, male heterogamety evolved in the subgenus Salix. The S. dunnii sex-linked region occupies about 3.21 Mb of chromosome 7 in females (representing its position in the X chromosome), probably within a pericentromeric region. Our data suggest that this region is enriched for transposable element insertions, and about one-third of its 124 protein-coding genes were gained via duplications from other genome regions. We detect purifying selection on the genes that were ancestrally present in the region, though some have been lost. Transcriptome data from female and male individuals show more male- than female-biased genes in catkin and leaf tissues, and indicate enrichment for male-biased genes in the pseudo-autosomal regions. Our study provides valuable genomic resources for further studies of sex-determining regions in the family Salicaceae, and sex chromosome evolution.
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