ArticlePlanta2004
Nuclear fusions contribute to polyploidization of the gigantic nuclei in the chalazal endosperm of Arabidopsis.
Article in Planta, 2004. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 13 papers.
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Who cites it
13 citing papers in PubMed.
- A transcriptional atlas of early Arabidopsis seed development suggests mechanisms for inter-tissue coordination.Nature plants · 2026Article
- Hormonal regulation and crosstalk during early endosperm and seed coat development.Plant reproduction · 2024Review
- Oat species and interspecific amphiploids show predominance of diploid nuclei in the syncytial endosperm.Journal of applied genetics · 2024Article
- Cellular dynamics of coenocytic endosperm development in Arabidopsis thaliana.Nature plants · 2023Article
- Endosperm Development Traits in a Comparative Analysis of Endospermogenesis and Embryogenesis in Angiosperms.Doklady biological sciences : proceedings of the Academy of Sciences of the USSR, Biological sciences sections · 2022Article
- Transcriptional and imprinting complexity in Arabidopsis seeds at single-nucleus resolution.Nature plants · 2021Article
- Mobile TERMINAL FLOWER1 determines seed size in Arabidopsis.Nature plants · 2020Article
- Endosperm and Imprinting, Inextricably Linked.Plant physiology · 2017Review
- Endocycles: a recurrent evolutionary innovation for post-mitotic cell growth.Nature reviews. Molecular cell biology · 2014Review
- Transcriptional profiles underlying parent-of-origin effects in seeds of Arabidopsis thaliana.BMC plant biology · 2010Article
- The Arabidopsis cell division cycle.The arabidopsis book · 2009Article
- The triploid endosperm genome of Arabidopsis adopts a peculiar, parental-dosage-dependent chromatin organization.The Plant cell · 2007Article
- Article
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Authors and funding
3 authors.
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Abstract
Somatic polyploidization is recognized as a means to increase gene expression levels in highly active metabolic cells. The most common mechanisms are endoreplication, endomitosis and cell fusion. In animals and plants the nuclei of multinucleate cells are usually prevented from fusing. Here, we report that the nuclei from the syncytial cyst of the chalazal endosperm of Arabidopsis thaliana (L.) Heynh. are polyploid with some intermediate ploidy levels that cannot be attributed to endoreplication, suggesting nuclear fusion. Analysis of isolated nuclei, together with fluorescent in situ hybridization (FISH), revealed that nuclei from the chalazal endosperm are two or three times bigger than the nuclei from the peripheral endosperm and have a corresponding increase in ploidy. Together with the consistent observation of adjoined nuclei, we propose that nuclear fusion contributes, at least in part, to the process of polyploidization in the chalazal endosperm. Confocal analysis of intact seeds further suggested that free nuclei from the peripheral endosperm get incorporated into the chalazal cyst and likely participate in nuclear fusions.
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Registered trials
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