ArticleGenetics1999
Time course study of the chromosome-type breakage-fusion-bridge cycle in maize.
Article in Genetics, 1999. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 23 papers.
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Who cites it
23 citing papers in PubMed.
- Unambiguous chromosome identification reveals the factors impacting irregular chromosome behaviors in allotriploid AAC Brassica.TAG. Theoretical and applied genetics. Theoretische und angewandte Genetik · 2024Article
- Synthetic maize centromeres transmit chromosomes across generations.Nature plants · 2023Article
- The supernumerary B chromosome of maize: drive and genomic conflict.Open biology · 2021Article
- Sequence of the supernumerary B chromosome of maize provides insight into its drive mechanism and evolution.Proceedings of the National Academy of Sciences of the United States of America · 2021Article
- Review
- Analysis of B chromosome nondisjunction induced by the r-X1 deficiency in maize.Chromosome research : an international journal on the molecular, supramolecular and evolutionary aspects of chromosome biology · 2018Article
- Meiotic Studies on Combinations of Chromosomes With Different Sized Centromeres in Maize.Frontiers in plant science · 2018Article
- 3D Molecular Cytology of Hop (Frontiers in plant science · 2018Article
- Cytomolecular characterization and origin of de novo formed maize B chromosome variants.Chromosome research : an international journal on the molecular, supramolecular and evolutionary aspects of chromosome biology · 2016Article
- Holokinetic centromeres and efficient telomere healing enable rapid karyotype evolution.Chromosoma · 2015Article
- Dynamic epigenetic states of maize centromeres.Frontiers in plant science · 2015Review
- Minichromosomes and artificial chromosomes in Arabidopsis.Chromosome research : an international journal on the molecular, supramolecular and evolutionary aspects of chromosome biology · 2014Review
- Meiotic behavior of small chromosomes in maize.Frontiers in plant science · 2013Review
- Multiple maize minichromosomes in meiosis.Chromosome research : an international journal on the molecular, supramolecular and evolutionary aspects of chromosome biology · 2012Article
- Towards the development of better crops by genetic transformation using engineered plant chromosomes.Plant cell reports · 2011Review
- Telomere disruption results in non-random formation of de novo dicentric chromosomes involving acrocentric human chromosomes.PLoS genetics · 2010Article
- Reactivation of an inactive centromere reveals epigenetic and structural components for centromere specification in maize.The Plant cell · 2009Article
- A tale of two centromeres--diversity of structure but conservation of function in plants and animals.Functional & integrative genomics · 2009Review
- Minichromosome analysis of chromosome pairing, disjunction, and sister chromatid cohesion in maize.The Plant cell · 2007Article
- Centromere function and nondisjunction are independent components of the maize B chromosome accumulation mechanism.The Plant cell · 2007Article
Corrections and comments
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Authors and funding
3 authors.
Funding
No grant is acknowledged in the PubMed record.
Abstract
The B chromosome of maize has been used in a study of dicentric chromosomes. TB-9Sb is a translocation between the B and chromosome 9. The B-9 of TB-9Sb carries 60% of the short arm of 9. For construction of dicentrics, a modified B-9 chromosome was used, B-9-Dp9. It consists of the B-9 chromosome plus a duplicated 9S region attached to the distal end. In meiosis, fold-back pairing and crossing over in the duplicated region gives a chromatid-type dicentric B-9 that subsequently initiates a chromatid-type breakage-fusion-bridge cycle. In the male, it forms a single bridge in anaphase II of meiosis and at the first pollen mitosis. However, the cycle is interrupted by nondisjunction of the B centromere at the second pollen mitosis, which sends the B-9 dicentric to one pole and converts it from a chromatid dicentric to a chromosome dicentric. As expected, the new dicentric undergoes the chromosome-type breakage-fusion-bridge cycle and produces double bridges. A large number of plants with chromosome dicentrics were produced in this way. The presence of double bridges in the root cells of plants with a chromosome dicentric was studied during the first 10 wk of development. It was found that the number of plants and cells showing double bridges declined steadily over the 10-wk period. Several lines of evidence indicate that there was no specific developmental time for dicentric loss. "Healing" of broken chromosomes produced by dicentric breakage accounted for much of the dicentric loss. Healing produced a wide range of derived B-9 chromosomes, some large and some small. A group of minichromosomes found in these experiments probably represents the small end of the scale for B-9 derivatives.
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