2020
Abiotic stress-mediated modulation of the chromatin landscape in Arabidopsis thaliana
RAXWAL, Vivek Kumar, S. GHOSH, S. SINGH, S. KATIYAR-AGARWAL, S. GOEL et. al.Základní údaje
Originální název
Abiotic stress-mediated modulation of the chromatin landscape in Arabidopsis thaliana
Autoři
RAXWAL, Vivek Kumar (356 Indie, garant, domácí), S. GHOSH, S. SINGH, S. KATIYAR-AGARWAL, S. GOEL, A. JAGANNATH, A. KUMAR, V. SCARIA a M. AGARWAL
Vydání
Journal of Experimental Botany, Oxford, OXFORD UNIV PRESS, 2020, 0022-0957
Další údaje
Jazyk
angličtina
Typ výsledku
Článek v odborném periodiku
Obor
10611 Plant sciences, botany
Stát vydavatele
Velká Británie a Severní Irsko
Utajení
není předmětem státního či obchodního tajemství
Odkazy
Impakt faktor
Impact factor: 6.992
Kód RIV
RIV/00216224:14740/20:00114766
Organizační jednotka
Středoevropský technologický institut
UT WoS
000573252000014
Klíčová slova anglicky
Abiotic stress; Arabidopsis; chromatin landscape; DNase-seq; FAIRE-seq; open chromatin; transcription
Štítky
Příznaky
Mezinárodní význam, Recenzováno
Změněno: 11. 3. 2021 19:22, Mgr. Pavla Foltynová, Ph.D.
Anotace
V originále
Limited information is available on abiotic stress-mediated alterations of chromatin conformation influencing gene expression in plants. In order to characterize the effect of abiotic stresses on changes in chromatin conformation, we employed FAIRE-seq (formaldehyde-assisted isolation of regulatory element sequencing) and DNase-seq to isolate accessible regions of chromatin from Arabidopsis thaliana seedlings exposed to either heat, cold, salt, or drought stress. Approximately 25% of regions in the Arabidopsis genome were captured as open chromatin, the majority of which included promoters and exons. A large proportion of chromatin regions apparently did not change their conformation in response to any of the four stresses. Digital footprints present within these regions had differential enrichment of motifs for binding of 43 different transcription factors. Further, in contrast to drought and salt stress, both high and low temperature treatments resulted in increased accessibility of the chromatin. Also, pseudogenes attained increased chromatin accessibility in response to cold and drought stresses. The highly accessible and inaccessible chromatin regions of seedlings exposed to drought stress correlated with the Ser/Thr protein kinases (MLK1 and MLK2)-mediated reduction and increase in H3 phosphorylation (H3T3Ph), respectively. The presented results provide a deeper understanding of abiotic stress-mediated chromatin modulation in plants.
Návaznosti
EF15_003/0000479, projekt VaV |
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GA16-18578S, projekt VaV |
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