Detailed Information on Publication Record
2023
Steroid receptor coactivator TAIMAN is a new modulator of insect circadian clock
SMYKAL, Vlastimil, Lenka CHODAKOVA, Marketa HEJNIKOVA, Kristína BRIEDIKOVÁ, Bulah Chia-Hsiang WU et. al.Basic information
Original name
Steroid receptor coactivator TAIMAN is a new modulator of insect circadian clock
Authors
SMYKAL, Vlastimil, Lenka CHODAKOVA, Marketa HEJNIKOVA, Kristína BRIEDIKOVÁ (703 Slovakia, belonging to the institution), Bulah Chia-Hsiang WU, Hana VANECKOVA, Ping CHEN, Anna JANOVSKA, Pavlina KYJAKOVA, Martin VÁCHA (203 Czech Republic, belonging to the institution) and David DOLEZEL (guarantor)
Edition
PLoS Genetics, San Francisco, Public Library Science, 2023, 1553-7404
Other information
Language
English
Type of outcome
Článek v odborném periodiku
Field of Study
10602 Biology , Evolutionary biology
Country of publisher
United States of America
Confidentiality degree
není předmětem státního či obchodního tajemství
References:
Impact factor
Impact factor: 4.500 in 2022
RIV identification code
RIV/00216224:14310/23:00133966
Organization unit
Faculty of Science
UT WoS
001159590000001
Keywords in English
Circadian rhythms; RNA interference; Larvae; Insects; Drosophila melanogaster; Hormones; Biological locomotion; Exon mapping
Tags
Tags
International impact, Reviewed
Změněno: 1/3/2024 08:17, Mgr. Marie Šípková, DiS.
Abstract
V originále
TAIMAN (TAI), the only insect ortholog of mammalian Steroid Receptor Coactivators (SRCs), is a critical modulator of ecdysone and juvenile hormone (JH) signaling pathways, which govern insect development and reproduction. The modulatory effect is mediated by JH-dependent TAI’s heterodimerization with JH receptor Methoprene-tolerant and association with the Ecdysone Receptor complex. Insect hormones regulate insect physiology and development in concert with abiotic cues, such as photo- and thermoperiod. Here we tested the effects of JH and ecdysone signaling on the circadian clock by a combination of microsurgical operations, application of hormones and hormone mimics, and gene knockdowns in the linden bug Pyrrhocoris apterus males. Silencing taiman by each of three non-overlapping double-strand RNA fragments dramatically slowed the free-running period (FRP) to 27–29 hours, contrasting to 24 hours in controls. To further corroborate TAIMAN’s clock modulatory function in the insect circadian clock, we performed taiman knockdown in the cockroach Blattella germanica. Although Blattella and Pyrrhocoris lineages separated ~380 mya, B. germanica taiman silencing slowed the FRP by more than 2 hours, suggesting a conserved TAI clock function in (at least) some insect groups. Interestingly, the pace of the linden bug circadian clock was neither changed by blocking JH and ecdysone synthesis, by application of the hormones or their mimics nor by the knockdown of corresponding hormone receptors. Our results promote TAI as a new circadian clock modulator, a role described for the first time in insects. We speculate that TAI participation in the clock is congruent with the mammalian SRC-2 role in orchestrating metabolism and circadian rhythms, and that TAI/SRCs might be conserved components of the circadian clock in animals.
Links
QK1910286, research and development project |
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