Transcriptional and post-transcriptional regulation of young genes in plants

Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216224%3A14740%2F22%3A00128459" target="_blank" >RIV/00216224:14740/22:00128459 - isvavai.cz</a>
Result on the web
<a href="https://bmcbiol.biomedcentral.com/articles/10.1186/s12915-022-01339-7" target="_blank" >https://bmcbiol.biomedcentral.com/articles/10.1186/s12915-022-01339-7</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1186/s12915-022-01339-7" target="_blank" >10.1186/s12915-022-01339-7</a>

Result language
angličtina
Original language name
Transcriptional and post-transcriptional regulation of young genes in plants
Original language description
Background New genes continuously emerge from non-coding DNA or by diverging from existing genes, but most of them are rapidly lost and only a few become fixed within the population. We hypothesized that young genes are subject to transcriptional and post-transcriptional regulation to limit their expression and minimize their exposure to purifying selection. Results We performed a protein-based homology search across the tree of life to determine the evolutionary age of protein-coding genes present in the rice genome. We found that young genes in rice have relatively low expression levels, which can be attributed to distal enhancers, and closed chromatin conformation at their transcription start sites (TSS). The chromatin in TSS regions can be re-modeled in response to abiotic stress, indicating conditional expression of young genes. Furthermore, transcripts of young genes in Arabidopsis tend to be targeted by nonsense-mediated RNA decay, presenting another layer of regulation limiting their expression. Conclusions These data suggest that transcriptional and post-transcriptional mechanisms contribute to the conditional expression of young genes, which may alleviate purging selection while providing an opportunity for phenotypic exposure and functionalization.
Czech name
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Czech description
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Type
J<sub>imp</sub> - Article in a specialist periodical, which is included in the Web of Science database
CEP classification
—
OECD FORD branch
10600 - Biological sciences

Project
<a href="/en/project/EF15_003%2F0000479" target="_blank" >EF15_003/0000479: Regulation and manipulation of plant meiosis</a><br>
Continuities
P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Publication year
2022
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

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