ArticleNature communications2020
Supernumerary B chromosomes of Aegilops speltoides undergo precise elimination in roots early in embryo development.
Article in Nature communications, 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 40 papers.
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Who cites it
40 citing papers in PubMed, 171 citations in OpenAlex.
- The mechanistic and evolutionary diversity of programmed DNA elimination.Nature reviews. Genetics · 2026Review
- Single-Nucleus Transcriptome Analysis Provides New Insights Into B Chromosome Elimination in Sorghum.Plant biotechnology journal · 2026Article
- Germline-restricted chromosome of songbirds has different centromere compared to regular chromosomes.Heredity · 2026Article
- Review
- B chromosomes put the 'super' in supernumerary.Trends in genetics : TIG · 2026Review
- The enigma of the B chromosome-specific behaviour.Frontiers in plant science · 2026Review
- Sorghum embryos undergoing B chromosome elimination express B-variants of mitotic-related genes.Genome biology · 2025Article
- Biparental inheritance of germline-specific chromosomes in the sea lamprey and their roles in oocytes.Proceedings of the National Academy of Sciences of the United States of America · 2025Article
- Functions and mechanisms of eukaryotic RNA-guided programmed DNA elimination.Biochemical Society transactions · 2025Review
- Genome assembly of the maize B chromosome provides insight into its epigenetic characteristics and effects on the host genome.Genome biology · 2025Article
- Past innovations and future possibilities in plant chromosome engineering.Plant biotechnology journal · 2025Review
- Phytomers, collet and founder cells: a "universal" plant embryonic body plan from a developmental, molecular, and evolutionary perspective.Frontiers in plant science · 2025Review
- The genetic mechanism of B chromosome drive in rye illuminated by chromosome-scale assembly.Nature communications · 2024Article
- Gradual chromosomal lagging drive programmed genome elimination in hemiclonal fishes from the genus Hypseleotris.Scientific reports · 2024Article
- An egg-sabotaging mechanism drives non-Mendelian transmission in mice.Current biology : CB · 2024Article
- An egg sabotaging mechanism drives non-Mendelian transmission in mice.bioRxiv : the preprint server for biology · 2024Article
- Article
- Meiotic segregation and post-meiotic drive of the Festuca pratensis B chromosome.Chromosome research : an international journal on the molecular, supramolecular and evolutionary aspects of chromosome biology · 2023Article
- Rapid gene content turnover on the germline-restricted chromosome in songbirds.Nature communications · 2023Article
- An improved germline genome assembly for the sea lamprey Petromyzon marinus illuminates the evolution of germline-specific chromosomes.Cell reports · 2023Article
Corrections and comments
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Authors and funding
12 authors at 4 institutions in 2 countries.
Funding
No grant is acknowledged in the PubMed record.
Abstract
Not necessarily all cells of an organism contain the same genome. Some eukaryotes exhibit dramatic differences between cells of different organs, resulting from programmed elimination of chromosomes or their fragments. Here, we present a detailed analysis of programmed B chromosome elimination in plants. Using goatgrass Aegilops speltoides as a model, we demonstrate that the elimination of B chromosomes is a strictly controlled and highly efficient root-specific process. At the onset of embryo differentiation B chromosomes undergo elimination in proto-root cells. Independent of centromere activity, B chromosomes demonstrate nondisjunction of chromatids and lagging in anaphase, leading to micronucleation. Chromatin structure and DNA replication differ between micronuclei and primary nuclei and degradation of micronucleated DNA is the final step of B chromosome elimination. This process might allow root tissues to survive the detrimental expression, or overexpression of B chromosome-located root-specific genes with paralogs located on standard chromosomes.
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