ArticlePlant physiology2001
The Arabidopsis gene tardy asynchronous meiosis is required for the normal pace and synchrony of cell division during male meiosis.
Article in Plant physiology, 2001. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 48 papers.
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Who cites it
48 citing papers in PubMed, 123 citations in OpenAlex.
- KNUCKLES promotes meiotic cell-cycle progression by directly repressing the expression of KRP1 and KRP3 to ensure male fertility.Plant communications · 2026Article
- The recruitment of the A-type cyclin TAM to stress granules is crucial for meiotic fidelity under heat.Science advances · 2025Article
- Genetic Regulation of Mitosis-Meiosis Fate Decision in Plants: Is Callose an Oversighted Polysaccharide in These Processes?Plants (Basel, Switzerland) · 2023Review
- Various tomato cultivars display contrasting morphological and molecular responses to a chronic heat stress.Frontiers in plant science · 2023Article
- Comparison of meiotic transcriptomes of three maize inbreds with different origins reveals differences in cell cycle and recombination.BMC genomics · 2022Article
- A Review of the Developmental Processes and Selective Pressures Shaping Aperture Pattern in Angiosperms.Plants (Basel, Switzerland) · 2022Review
- Apomixis: genetic basis and controlling genes.Horticulture research · 2022Article
- Karyotype Reorganization in Wheat-Rye Hybrids Obtained via Unreduced Gametes: Is There a Limit to the Chromosome Number in Triticale?Plants (Basel, Switzerland) · 2021Article
- Direct evidence of sex and a hypothesis about meiosis in Symbiodiniaceae.Scientific reports · 2021Article
- Caught in the Act: Live-Cell Imaging of Plant Meiosis.Frontiers in plant science · 2021Review
- The Role of Anaphase-Promoting Complex/Cyclosome (APC/C) in Plant Reproduction.Frontiers in plant science · 2021Review
- CDKD-dependent activation of CDKA;1 controls microtubule dynamics and cytokinesis during meiosis.The Journal of cell biology · 2020Article
- The Arabidopsis Cdk1/Cdk2 homolog CDKA;1 controls chromosome axis assembly during plant meiosis.The EMBO journal · 2020Article
- A Functional Kinase Is Necessary for Cyclin-Dependent Kinase G1 (CDKG1) to Maintain Fertility at High Ambient Temperature inFrontiers in plant science · 2020Article
- Evolutionary constraints on disparity of ericaceous pollen grains.Annals of botany · 2019Article
- Live cell imaging of meiosis ineLife · 2019Article
- Inducing triploids and tetraploids with high temperatures in Populus sect. Tacamahaca.Plant cell reports · 2017Article
- It is a matter of timing: asynchrony during pollen development and its consequences on pollen performance in angiosperms-a review.Protoplasma · 2017Review
- Aberrant Meiotic Prophase I Leads to Genic Male Sterility in the Novel TE5A Mutant of Brassica napus.Scientific reports · 2016Article
- S-Adenosylmethionine Synthetase 3 Is Important for Pollen Tube Growth.Plant physiology · 2016Article
Corrections and comments
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Authors and funding
5 authors at 2 institutions in 1 country.
Funding
No grant is acknowledged in the PubMed record.
Abstract
Male meiosis in higher organisms features synchronous cell divisions in a large number of cells. It is not clear how this synchrony is achieved, nor is it known whether the synchrony is linked to the regulation of cell cycle progression. Here, we describe an Arabidopsis mutant, named tardy asynchronous meiosis (tam), that exhibits a phenotype of delayed and asynchronous cell divisions during male meiosis. In Arabidopsis, two nuclear divisions occur before simultaneous cytokinesis yields a tetrad of haploid cells. In tam, cell divisions are delayed, resulting in the formation of abnormal intermediates, most frequently dyad meiotic products, or in rare cases, dyad pollen (two gametophytes within one exine wall). Temperature-shift experiments showed that the percentage of the abnormal intermediates increased at 27 degrees C. Analysis of tam and the tam/quartet1 double mutant showed that most of these abnormal intermediates could continue through the normal rounds of cell divisions and form functional pollen, though at a slower than normal pace. The asynchrony of cell division started at the G2/M transition, with cells entering metaphase at different time points, during both meiosis I and II. In addition, chromosome condensation defects and mis-segregation were sometimes observed in tam. These observations suggest that the TAM protein positively regulates cell cycle progression, perhaps by promoting the G2/M transition. We speculate that there is a signal, perhaps TAM, that couples the normal pace of cell cycle progression with the synchrony of cell division during male meiosis.
Indexed as
Identifiers
11706195PMC129284W2109090191What OpenQuestion holds
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.