ArticleProceedings of the National Academy of Sciences of the United States of America1998
A knob-associated tandem repeat in maize capable of forming fold-back DNA segments: are chromosome knobs megatransposons?
Article in Proceedings of the National Academy of Sciences of the United States of America, 1998. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 72 papers.
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Who cites it
72 citing papers in PubMed, 149 citations in OpenAlex.
- Article
- Higher order repeat structures reflect diverging evolutionary paths in maize centromeres and knobs.Genome biology · 2026Article
- Maize B chromosome affects the flowering time.TAG. Theoretical and applied genetics. Theoretische und angewandte Genetik · 2025Article
- 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
- Telomere and subtelomere high polymorphism might contribute to the specificity of homologous recognition and pairing during meiosis in barley in the context of breeding.BMC genomics · 2023Article
- A complete telomere-to-telomere assembly of the maize genome.Nature 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
- Comprehending the dynamism of B chromosomes in their journey towards becoming unselfish.Frontiers in cell and developmental biology · 2022Review
- Modeling the 3D genome of plants.Nucleus (Austin, Tex.) · 2021Article
- The supernumerary B chromosome of maize: drive and genomic conflict.Open biology · 2021Article
- The nature of intraspecific and interspecific genome size variation in taxonomically complex eyebrights.Annals of botany · 2021Article
- Genome-wide mapping reveals R-loops associated with centromeric repeats in maize.Genome research · 2021Article
- The Genomics of Plant Satellite DNA.Progress in molecular and subcellular biology · 2021Review
- A Heterochromatic Knob Reducing the Flowering Time in Maize.Frontiers in genetics · 2021Article
- Sequence analysis of wheat subtelomeres reveals a high polymorphism among homoeologous chromosomes.The plant genome · 2020Article
- Comparing DNA replication programs reveals large timing shifts at centromeres of endocycling cells in maize roots.PLoS genetics · 2020Article
- Distinct kinesin motors drive two types of maize neocentromeres.Genes & development · 2020Article
- Repetitive sequences and structural chromosome alterations promote intraspecific variations in Zea mays L. karyotype.Scientific reports · 2020Article
- Gapless assembly of maize chromosomes using long-read technologies.Genome biology · 2020Article
- Article
12 more citing papers are in PubMed but not listed here.
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Authors and funding
3 authors at 2 institutions in 1 country.
Funding
No grant is acknowledged in the PubMed record.
Abstract
A class of tandemly repeated DNA sequences (TR-1) of 350-bp unit length was isolated from the knob DNA of chromosome 9 of Zea mays L. Comparative fluorescence in situ hybridization revealed that TR-1 elements are also present in cytologically detectable knobs on other maize chromosomes in different proportions relative to the previously described 180-bp repeats. At least one knob on chromosome 4 is composed predominantly of the TR-1 repeat. In addition, several small clusters of the TR-1 and 180-bp repeats have been found in different chromosomes, some not located in obvious knob heterochromatin. Variation in restriction fragment fingerprints and copy number of the TR-1 elements was found among maize lines and among maize chromosomes. TR-1 tandem arrays up to 70 kilobases in length can be interspersed with stretches of 180-bp tandem repeat arrays. DNA sequence analysis and restriction mapping of one particular stretch of tandemly arranged TR-1 units indicate that these elements may be organized in the form of fold-back DNA segments. The TR-1 repeat shares two short segments of homology with the 180-bp repeat. The longest of these segments (31 bp; 64% identity) corresponds to the conserved region among 180-bp repeats. The polymorphism and complex structure of knob DNA suggest that, similar to the fold-back DNA-containing giant transposons in Drosophila, maize knob DNA may have some properties of transposable elements.
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