ArticleNature communications2024
The genetic mechanism of B chromosome drive in rye illuminated by chromosome-scale assembly.
Article in Nature communications, 2024. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 18 papers.
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Who cites it
18 citing papers in PubMed.
- Distribution of B chromosomes in Prospero autumnale associates with higher reproductive performance in southern Iberia.Genetica · 2026Article
- Unveiling centromeric retrotransposon dynamics through a high-quality rye genome assembly.Nature communications · 2026Article
- Phased-genome assemblies of saltgrass reveal structural dynamics and genomic basis for extreme salt tolerance and dioecy.Plant communications · 2026Article
- Single-Nucleus Transcriptome Analysis Provides New Insights Into B Chromosome Elimination in Sorghum.Plant biotechnology journal · 2026Article
- Review
- Hybrid origin and phenotype evolution of the modern maize.Journal of integrative plant biology · 2026Review
- B chromosomes put the 'super' in supernumerary.Trends in genetics : TIG · 2026Review
- Satellite DNA-targeted CRISPR-Cas9-mediated editing enables chromosome truncation and elimination in wheat.Plant communications · 2026Article
- Single-cell and spatial transcriptomics in Phragmites australis reveal the association of B chromosomes with plant invasiveness.Genome biology · 2026Article
- From gametocides to gene drive: natural transmission distortion systems as tools for cereal breeding.Journal of applied genetics · 2026Review
- From Adam's rib: the Siberian moth's female W chromosome is derived from its Z counterpart.Molecular biology and evolution · 2026Article
- Chromosome-level genome assembly and transcriptomes of the leaf insect Cryptophyllium westwoodii provide insights into the evolution of leaf-like masquerade.GigaScience · 2026Article
- The enigma of the B chromosome-specific behaviour.Frontiers in plant science · 2026Review
- A male-transmitted B chromosome undergoes strong meiotic drag in females of the jewel wasp Nasonia vitripennis.PLoS biology · 2026Article
- Sorghum embryos undergoing B chromosome elimination express B-variants of mitotic-related genes.Genome biology · 2025Article
- The maize B chromosome shapes the transcriptome throughout the entire plant life cycle.Journal of experimental botany · 2025Article
- Thriving or Withering? Plant Molecular Cytogenetics in the First Quarter of the 21st Century.International journal of molecular sciences · 2025Review
- Genome assembly of the maize B chromosome provides insight into its epigenetic characteristics and effects on the host genome.Genome biology · 2025Article
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Authors and funding
18 authors.
Funding
Abstract
The genomes of many plants, animals, and fungi frequently comprise dispensable B chromosomes that rely upon various chromosomal drive mechanisms to counteract the tendency of non-essential genetic elements to be purged over time. The B chromosome of rye - a model system for nearly a century - undergoes targeted nondisjunction during first pollen mitosis, favouring segregation into the generative nucleus, thus increasing their numbers over generations. However, the genetic mechanisms underlying this process are poorly understood. Here, using a newly-assembled, ~430 Mb-long rye B chromosome pseudomolecule, we identify five candidate genes whose role as trans-acting moderators of the chromosomal drive is supported by karyotyping, chromosome drive analysis and comparative RNA-seq. Among them, we identify DCR28, coding a microtubule-associated protein related to cell division, and detect this gene also in the B chromosome of Aegilops speltoides. The DCR28 gene family is neo-functionalised and serially-duplicated with 15 B chromosome-located copies that are uniquely highly expressed in the first pollen mitosis of rye.
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