ArticleGenetics2000
Chromosome nondisjunction and instabilities in tapetal cells are affected by B chromosomes in maize.
Article in Genetics, 2000. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 20 papers.
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Who cites it
20 citing papers in PubMed, 47 citations in OpenAlex.
- Identification of cDNA-AFLP fragments associated with the B chromosome from different developmental stages of maize anthers.Chromosome research : an international journal on the molecular, supramolecular and evolutionary aspects of chromosome biology · 2025Article
- Genotoxic and Toxicopathological Responses to Ethylparaben in Plants: Potential Impacts to Crop Yields.Toxics · 2025Article
- Epigenetic histone H3 phosphorylation marks discriminate between univalent- and bivalent-forming chromosomes during canina asymmetrical meiosis.Annals of botany · 2024Article
- The Nuclear 35S rDNA World in Plant Systematics and Evolution: A Primer of Cautions and Common Misconceptions in Cytogenetic Studies.Frontiers in plant science · 2022Review
- The supernumerary B chromosome of maize: drive and genomic conflict.Open biology · 2021Article
- Analysis of Ploidy in Haploids and Doubled Haploids.Methods in molecular biology (Clifton, N.J.) · 2021Article
- Relationship between meiotic behaviour and fertility in backcross-1 derivatives of the [(Comparative cytogenetics · 2020Article
- 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
- Post-meiotic B chromosome expulsion, during spermiogenesis, in two grasshopper species.Chromosoma · 2017Article
- B Chromosomes - A Matter of Chromosome Drive.Frontiers in plant science · 2017Review
- Evidence for mitotic recombination within the basidia of a hybrid cross of Cryptococcus neoformans.PloS one · 2013Article
- Heritable loss of replication control of a minichromosome derived from the B chromosome of maize.Genetics · 2013Article
- Nondisjunction in favor of a chromosome: the mechanism of rye B chromosome drive during pollen mitosis.The Plant cell · 2012Article
- Similar rye A and B chromosome organization in meristematic and differentiated interphase nuclei.Chromosome research : an international journal on the molecular, supramolecular and evolutionary aspects of chromosome biology · 2011Article
- Relationships of the woody Medicago species (section Dendrotelis) assessed by molecular cytogenetic analyses.Annals of botany · 2008Article
- B chromosome polymorphism in maize landraces: adaptive vs. demographic hypothesis of clinal variation.Genetics · 2007Article
- Centromere function and nondisjunction are independent components of the maize B chromosome accumulation mechanism.The Plant cell · 2007Article
- High frequency of centromere inactivation resulting in stable dicentric chromosomes of maize.Proceedings of the National Academy of Sciences of the United States of America · 2006Article
- Nuclear fusions contribute to polyploidization of the gigantic nuclei in the chalazal endosperm of Arabidopsis.Planta · 2004Article
- Chromosome instabilities and programmed cell death in tapetal cells of maize with B chromosomes and effects on pollen viability.Genetics · 2004Article
Corrections and comments
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Authors and funding
6 authors at 1 institution in 1 country.
Funding
No grant is acknowledged in the PubMed record.
Abstract
Abnormal mitosis occurs in maize tapetum, producing binucleate cells that later disintegrate, following a pattern of programmed cell death. FISH allowed us to observe chromosome nondisjunction and micronucleus formation in binucleate cells, using DNA probes specific to B chromosomes (B's), knobbed chromosomes, and the chromosome 6 (NOR) of maize. All chromosome types seem to be involved in micronucleus formation, but the B's form more micronuclei than do knobbed chromosomes and knobbed chromosomes form more than do chromosomes without knobs. Micronuclei were more frequent in 1B plants and in a genotype selected for low B transmission rate. Nondisjunction was observed in all types of FISH-labeled chromosomes. In addition, unlabeled bridges and delayed chromatids were observed in the last telophase before binucleate cell formation, suggesting that nondisjunction might occur in all chromosomes of the maize complement. B nondisjunction is known to occur in the second pollen mitosis and in the endosperm, but it was not previously reported in other tissues. This is also a new report of nondisjunction of chromosomes of the normal set (A's) in tapetal cells. Our results support the conclusion that nondisjunction and micronucleus formation are regular events in the process of the tapetal cell death program, but B's strongly increase A chromosome instability.
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