ReviewFrontiers in genetics2021
Evolution of B Chromosomes: From Dispensable Parasitic Chromosomes to Essential Genomic Players.
Review in Frontiers in genetics, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 22 papers.
What it found
Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.
The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.
The trial behind it
Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.
Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.
Who cites it
22 citing papers in PubMed.
- The mechanistic and evolutionary diversity of programmed DNA elimination.Nature reviews. Genetics · 2026Review
- The complete sequence of the silkworm W chromosome uncovers its rapid evolution by large-scale duplications/deletions and translocation of W-linked genes.G3 (Bethesda, Md.) · 2026Article
- Distribution of B chromosomes in Prospero autumnale associates with higher reproductive performance in southern Iberia.Genetica · 2026Article
- Comparative genomic analysis and epigenetic profiling of the Drosophila melanogaster B chromosome.Genetics · 2026Article
- Review
- Genome assembly of Astatotilapia latifasciata uncovers B chromosome-linked chromatin reorganization.Heredity · 2026Article
- Germline-restricted chromosome of songbirds has different centromere compared to regular chromosomes.Heredity · 2026Article
- B chromosomes put the 'super' in supernumerary.Trends in genetics : TIG · 2026Review
- An intraspecific origin of B chromosomes in Tetragonisca fiebrigi (Apidae: Meliponini) inferred from cytogenetic and nuclear genome size data.Scientific reports · 2026Article
- A male-transmitted B chromosome undergoes strong meiotic drag in females of the jewel wasp Nasonia vitripennis.PLoS biology · 2026Article
- The Genomic Kaleidoscope: On the Hidden Dimensions of Within-Species Genomic Diversity.Genome biology and evolution · 2025Review
- Programmed DNA elimination drives rapid genomic innovation in two thirds of all bird species.bioRxiv : the preprint server for biology · 2025Article
- Genome assembly of the maize B chromosome provides insight into its epigenetic characteristics and effects on the host genome.Genome biology · 2025Article
- Multiple independent origins of the female W chromosome in moths and butterflies.Science advances · 2024Article
- Karyotype Variability in WildPlants (Basel, Switzerland) · 2024Article
- Review
- Rapid gene content turnover on the germline-restricted chromosome in songbirds.Nature communications · 2023Article
- Individual Genetic Heterogeneity.Genes · 2022Review
- Mendelian nightmares: the germline-restricted chromosome of songbirds.Chromosome research : an international journal on the molecular, supramolecular and evolutionary aspects of chromosome biology · 2022Review
- Germline-restricted chromosome shows remarkable variation in size among closely related passerine species.Chromosoma · 2022Article
Corrections and comments
PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.
Authors and funding
2 authors.
Funding
No grant is acknowledged in the PubMed record.
Abstract
B chromosomes represent additional chromosomes found in many eukaryotic organisms. Their origin is not completely understood but recent genomic studies suggest that they mostly arise through rearrangements and duplications from standard chromosomes. They can occur in single or multiple copies in a cell and are usually present only in a subset of individuals in the population. Because B chromosomes frequently show unstable inheritance, their maintenance in a population is often associated with meiotic drive or other mechanisms that increase the probability of their transmission to the next generation. For all these reasons, B chromosomes have been commonly considered to be nonessential, selfish, parasitic elements. Although it was originally believed that B chromosomes had little or no effect on an organism's biology and fitness, a growing number of studies have shown that B chromosomes can play a significant role in processes such as sex determination, pathogenicity and resistance to pathogens. In some cases, B chromosomes became an essential part of the genome, turning into new sex chromosomes or germline-restricted chromosomes with important roles in the organism's fertility. Here, we review such cases of "cellular domestication" of B chromosomes and show that B chromosomes can be important genomic players with significant evolutionary impact.
Indexed as
Identifiers
What OpenQuestion holds
Registered trials
Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.