ArticleChromosoma2013
Maize chromosomal knobs are located in gene-dense areas and suppress local recombination.
Article in Chromosoma, 2013. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 25 papers, 1 of them a synthesis that pooled it.
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Who cites it
25 citing papers in PubMed, 1 synthesis or guideline pooled it.
- Genome-Wide Meta-Analysis of QTLs Associated with Root Traits and Implications for Maize Breeding.International journal of molecular sciences · 2023Pooled it
- Higher order repeat structures reflect diverging evolutionary paths in maize centromeres and knobs.Genome biology · 2026Article
- Article
- Maize B chromosome affects the flowering time.TAG. Theoretical and applied genetics. Theoretische und angewandte Genetik · 2025Article
- Suppression of meiotic crossovers in pericentromeric heterochromatin requires synaptonemal complex and meiotic recombination factors inbioRxiv : the preprint server for biology · 2024Article
- Expanding the BonnMu sequence-indexed repository of transposon induced maize (Zea mays L.) mutations in dent and flint germplasm.The Plant journal : for cell and molecular biology · 2024Article
- Unlocking plant genetics with telomere-to-telomere genome assemblies.Nature genetics · 2024Review
- Distinct structural variants and repeat landscape shape the genomes of the ancient grapes Aglianico and Falanghina.BMC plant biology · 2024Article
- Large haplotypes highlight a complex age structure within the maize pan-genome.Genome research · 2023Article
- Unravelling the genetic framework associated with grain quality and yield-related traits in maize (Frontiers in genetics · 2023Article
- The maize abnormal chromosome 10 meiotic drive haplotype: a review.Chromosome research : an international journal on the molecular, supramolecular and evolutionary aspects of chromosome biology · 2022Review
- Modeling the 3D genome of plants.Nucleus (Austin, Tex.) · 2021Article
- A Heterochromatic Knob Reducing the Flowering Time in Maize.Frontiers in genetics · 2021Article
- Distinct kinesin motors drive two types of maize neocentromeres.Genes & development · 2020Article
- European maize genomes highlight intraspecies variation in repeat and gene content.Nature genetics · 2020Article
- Genome size evolution: towards new model systems for old questions.Proceedings. Biological sciences · 2020Article
- Ten Years of the Maize Nested Association Mapping Population: Impact, Limitations, and Future Directions.The Plant cell · 2020Review
- Repetitive sequences and structural chromosome alterations promote intraspecific variations in Zea mays L. karyotype.Scientific reports · 2020Article
- High-resolution crossover mapping reveals similarities and differences of male and female recombination in maize.Nature communications · 2018Article
- Meiotic Crossing Over in Maize Knob Heterochromatin.Genetics · 2017Article
Corrections and comments
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Authors and funding
5 authors.
Funding
No grant is acknowledged in the PubMed record.
Abstract
Knobs are conspicuous heterochromatic regions found on the chromosomes of maize and its relatives. The number, locations, and sizes of knobs vary dramatically, with most lines containing between four and eight knobs in mid-arm positions. Prior data suggest that some knobs may reduce recombination. However, comprehensive tests have not been carried out, primarily because most knobs have not been placed on the genetic map. We used fluorescent in situ hybridization and two recombinant inbred populations to map seven knobs and to accurately place three knobs from the B73 inbred on the genomic sequence assembly. The data show that knobs lie in gene-dense regions of the maize genome. Comparisons to 23 other recombinant inbred populations segregating for knobs at the same sites confirm that large knobs can locally reduce crossing over by as much as twofold on a cM/Mb scale. These effects do not extend beyond regions ~10 cM to either side of knobs and do not appear to affect linkage disequilibrium among genes within and near knob repeat regions of the B73 RefGen_v2 assembly.
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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.