ArticleChromosoma2012
mRNA accumulation in the Cajal bodies of the diplotene larch microsporocyte.
Article in Chromosoma, 2012. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 11 papers.
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Who cites it
11 citing papers in PubMed, 20 citations in OpenAlex.
- Cajal bodies: Evolutionarily conserved nuclear biomolecular condensates with properties unique to plants.The Plant cell · 2023Review
- Functional nuclear retention of pre-mRNA involving Cajal bodies during meiotic prophase in European larch (Larix decidua).The Plant cell · 2022Article
- Core spliceosomal Sm proteins as constituents of cytoplasmic mRNPs in plants.The Plant journal : for cell and molecular biology · 2020Article
- Spatio-temporal localization of LlBOP following early events of floral abscission in yellow lupine.Protoplasma · 2019Article
- Regulation of poly(A) RNA retention in the nucleus as a survival strategy of plants during hypoxia.RNA biology · 2016Article
- Spatial regulation of cytoplasmic snRNP assembly at the cellular level.Journal of experimental botany · 2015Article
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- Transcriptional activity in diplotene larch microsporocytes, with emphasis on the diffuse stage.PloS one · 2015Article
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- Periodic expression of Sm proteins parallels formation of nuclear Cajal bodies and cytoplasmic snRNP-rich bodies.Histochemistry and cell biology · 2011Article
Corrections and comments
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Authors and funding
2 authors at 1 institution in 1 country.
Funding
No grant is acknowledged in the PubMed record.
Abstract
In microsporocytes of the European larch, we demonstrated the presence of several mRNAs in spherical nuclear bodies. In the nuclei of microsporocytes, we observed up to 12 bodies, ranging from 0.5 to 6 μm in diameter, during the prophase of the first meiotic division. Our previous studies revealed the presence of polyadenylated RNA (poly(A) RNA) in these bodies, but did not confirm the presence of nascent transcripts or splicing factors of the SR family. The lack of these molecules precludes the bodies from being the sites of synthesis and early maturation of primary transcripts (Kołowerzo et al., Protoplasma 236:13-19, 2009). However, the bodies serve as sites for the accumulation of splicing machinery, including the Sm proteins and small nuclear RNAs. Characteristic ultrastructures and the molecular composition of the nuclear bodies, which contain poly(A) RNA, are indicative of Cajal bodies (CBs). Here, we demonstrated the presence of several housekeeping gene transcripts--α-tubulin, pectin methylesterase, peroxidase and catalase, ATPase, and inositol-3-phosphate synthase--in CBs. Additionally, we observed transcripts of the RNA polymerase II subunits RPB2 and RPB10 RNA pol II and the core spliceosome proteins mRNA SmD1, SmD2, and SmE. The co-localization of nascent transcripts and mRNAs indicates that mRNA accumulation/storage, particularly in CBs, occurs in the nucleus of microsporocytes.
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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.