ArticleOpen biology2021
The supernumerary B chromosome of maize: drive and genomic conflict.
Article in Open biology, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 12 papers.
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Who cites it
12 citing papers in PubMed, 25 citations in OpenAlex.
- Article
- An intraspecific origin of B chromosomes in Tetragonisca fiebrigi (Apidae: Meliponini) inferred from cytogenetic and nuclear genome size data.Scientific reports · 2026Article
- Genetic and environmental influences on the distributions of three chromosomal drive haplotypes in maize.PLoS genetics · 2025Article
- Global modulation of gene expression and transcriptome size in aneuploid combinations of maize.Proceedings of the National Academy of Sciences of the United States of America · 2025Article
- Genome assembly of the maize B chromosome provides insight into its epigenetic characteristics and effects on the host genome.Genome biology · 2025Article
- Dynamic meiotic behavior and evolutionary insights of supernumerary B chromosomes in the hangingflyComparative cytogenetics · 2025Article
- What is a B chromosome? Early definitions revisited.G3 (Bethesda, Md.) · 2024Article
- Article
- Meiotic drive of noncentromeric loci in mammalian meiosis II eggs.Current opinion in genetics & development · 2023Review
- Genomic imbalance modulates transposable element expression in maize.Plant communications · 2023Article
- The non-Mendelian behavior of plant B chromosomes.Chromosome research : an international journal on the molecular, supramolecular and evolutionary aspects of chromosome biology · 2022Review
- Comprehending the dynamism of B chromosomes in their journey towards becoming unselfish.Frontiers in cell and developmental biology · 2022Review
Corrections and comments
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Authors and funding
2 authors at 1 institution in 1 country.
Funding
No grant is acknowledged in the PubMed record.
Abstract
The supernumerary B chromosome of maize is dispensable, containing no vital genes, and thus is variable in number and presence in lines of maize. In order to be maintained in populations, it has a drive mechanism consisting of nondisjunction at the pollen mitosis that produces the two sperm cells, and then the sperm with the two B chromosomes has a preference for fertilizing the egg as opposed to the central cell in the process of double fertilization. The sequence of the B chromosome coupled with B chromosomal aberrations has localized features involved with nondisjunction and preferential fertilization, which are present at the centromeric region. The predicted genes from the sequence have paralogues dispersed across all A chromosomes and have widely different divergence times suggesting that they have transposed to the B chromosome over evolutionary time followed by degradation or have been co-opted for the selfish functions of the supernumerary chromosome.
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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.