Michl-Holzinger, Philipp and Mortensen, Simon A. and Grasser, Klaus D. (2019) The SSRP1 subunit of the histone chaperone FACT is required for seed dormancy in Arabidopsis. JOURNAL OF PLANT PHYSIOLOGY, 236. pp. 105-108. ISSN 0176-1617, 1618-1328
Full text not available from this repository. (Request a copy)Abstract
SSRP1 is a subunit of the histone chaperone FACT that associates with elongating RNA polymerase II (RNAPII) along the transcribed region of genes. FACT facilitates transcriptional elongation by destabilising nucleosomes in the path of RNAPII, assisting efficient transcription of chromatin templates. In contrast to wild type seeds, freshly harvested seeds of the Arabidopsis ssrp1 mutant germinate efficiently, exhibiting reduced seed dormancy. In line with this phenotype, the ssrp1 seeds have decreased transcript levels of the DOG1 gene, which is a known quantitative trait locus (QTL) for seed dormancy. Analysis of ssrp1 plants harbouring an additional copy of DOG1 show increased levels of DOG1 transcript and consistently more robust seed dormancy. Therefore, our findings indicate that SSRP1 is a novel factor required for the efficient expression of DOG1 and hence a modulator of seed dormancy in Arabidopsis.
| Item Type: | Article |
|---|---|
| Uncontrolled Keywords: | TRANSCRIPT ELONGATION; EXPRESSION; THALIANA; GERMINATION; DOG1; RNA; FACT histone chaperone; Chromatin; Histone; RNA polymerase II; Transcript elongation |
| Subjects: | 500 Science > 570 Life sciences 500 Science > 580 Botanical sciences |
| Divisions: | Biology, Preclinical Medicine > Institut für Pflanzenwissenschaften Biology, Preclinical Medicine > Institut für Pflanzenwissenschaften > Lehrstuhl für Zellbiologie und Pflanzenphysiologie (Prof. Dr. Klaus Grasser) |
| Depositing User: | Dr. Gernot Deinzer |
| Date Deposited: | 09 Apr 2020 07:52 |
| Last Modified: | 09 Apr 2020 07:52 |
| URI: | https://pred.uni-regensburg.de/id/eprint/27107 |
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