2022
Transcriptional and post-transcriptional regulation of young genes in plants
RAXWAL, Vivek Kumar, Somya SINGH, Manu AGARWAL a Karel ŘÍHAZákladní údaje
Originální název
Transcriptional and post-transcriptional regulation of young genes in plants
Autoři
RAXWAL, Vivek Kumar (356 Indie, domácí), Somya SINGH, Manu AGARWAL a Karel ŘÍHA (203 Česká republika, garant, domácí)
Vydání
BMC Biology, London, BMC, 2022, 1741-7007
Další údaje
Jazyk
angličtina
Typ výsledku
Článek v odborném periodiku
Obor
10600 1.6 Biological sciences
Stát vydavatele
Velká Británie a Severní Irsko
Utajení
není předmětem státního či obchodního tajemství
Odkazy
Impakt faktor
Impact factor: 5.400
Kód RIV
RIV/00216224:14740/22:00128459
Organizační jednotka
Středoevropský technologický institut
UT WoS
000808328600001
Klíčová slova anglicky
Abiotic stress; Evolutionary capacitance; Nonsense-mediated RNA decay; Open chromatin; Orphan genes; Young genes
Štítky
Příznaky
Mezinárodní význam, Recenzováno
Změněno: 31. 1. 2023 15:34, Mgr. Pavla Foltynová, Ph.D.
Anotace
V originále
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.
Návaznosti
EF15_003/0000479, projekt VaV |
|