ArticleJournal of experimental botany2016
Developmental programmed cell death during asymmetric microsporogenesis in holocentric species of Rhynchospora (Cyperaceae).
Article in Journal of experimental botany, 2016. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 11 papers.
What it found
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The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.
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Who cites it
11 citing papers in PubMed, 15 citations in OpenAlex.
- Article
- Chromosomal evolution in Cryptangieae Benth. (Cyperaceae): Evidence of holocentrism and pseudomonads.Protoplasma · 2024Article
- Cryoimmobilized anther analysis reveals new ultrastructural insights intoFrontiers in plant science · 2024Article
- Evolutionary features of microspore and pollen grain development in Cyperaceae.Plant reproduction · 2023Article
- Investigating the diversification of holocentromeric satellite DNA Tyba in Rhynchospora (Cyperaceae).Annals of botany · 2023Article
- Holocentric Chromosomes Probably Do Not Prevent Centromere Drive in Cyperaceae.Frontiers in plant science · 2021Article
- Meiosis Progression and Recombination in Holocentric Plants: What Is Known?Frontiers in plant science · 2021Review
- Super-Resolution Microscopy Reveals Diversity of Plant Centromere Architecture.International journal of molecular sciences · 2020Review
- Holocentric Karyotype Evolution inFrontiers in plant science · 2020Article
- Analysis of retrotransposon abundance, diversity and distribution in holocentric Eleocharis (Cyperaceae) genomes.Annals of botany · 2018Article
- Restructuring of Holocentric Centromeres During Meiosis in the Plant Rhynchospora pubera.Genetics · 2016Article
Corrections and comments
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Authors and funding
9 authors at 5 institutions in 4 countries.
Funding
No grant is acknowledged in the PubMed record.
Abstract
Members of the Cyperaceae family exhibit an asymmetric microsporogenesis that results in the degeneration of three out of four meiotic products. Efforts have been made previously to describe the resulting structure, named the pseudomonad, but mechanisms concerning the establishment of cell domains, nuclear development, and programmed cell death are largely unknown. Using the Rhynchospora genus as a model, evidence for cell asymmetry, cytoplasmic isolation, and programmed cell death was obtained by a combination of electron microscopic, cytochemical, immunocytochemical, in situ hybridization, and flow cytometric methods. Degenerative cells were identified at the abaxial region, with the cytoskeleton marking their delimitation from the functional domain after meiosis. After attempting to initiate cell division with an unreplicated genome and abnormal spindle assembly, these cells exhibited a gradual process of cytoplasmic contraction associated with hypermethylation of cytosines and differential loss of DNA. These results indicate that the asymmetric tetrad establishes a functional cell, where one nucleus is preferentially selected to survive. Degenerative haploid cells are then eliminated in a multistep process associated with mitotic disorder, non-random elimination of repetitive DNA, vacuolar cell death, and DNA fragmentation.
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