Találati lista | Tudóstér

001-es BibID:	BIBFORM107988
035-os BibID:	(cikkazonosító)826968 (WOS)000827724600001 (Scopus)85134270245
Első szerző:	Tóth Zsófia (biológus)
Cím:	Food Restriction Reveals Individual Differences in Insulin-Like Growth Factor-1 Reaction Norms / Zsófia Tóth, Katharina Mahr, Gyula Ölveczki, Levente Őri, Ádám Zoltán Lendvai
Dátum:	2022
ISSN:	2296-701X
Megjegyzések:	Most organisms have to cope with unpredictable environmental challenges such as fluctuations in nutritional resources. Insulin-like growth factor-1 (IGF-1) is an evolutionarily conserved hormone that is highly sensitive to the individual nutritional status and regulates major life-history traits including lifespan and reproduction across vertebrates. We investigated the role of IGF-1 during periods of food shortages by altering between two feeding regimes (110 and 70% of daily food intake) after a period of ad libitum feeding in captive bearded reedlings (Panurus biarmicus). Each dietary treatment was repeated twice. Birds lost mass under food restriction, but the magnitude of mass change depended on the preceding dietary conditions. Moreover, bearded reedlings showed large, repeatable individual differences in their IGF-1 reaction norms with some individuals increasing IGF-1 levels in response to a restricted diet, whereas others showed no responses or decreased IGF-1 levels. This variation was explained by differences in average body mass: heavier individuals had higher IGF-1 levels during the control treatment and were more likely to decrease IGF-1 levels in response to the dietary restriction than did lighter ones. This result uncovers an individual by environment interaction (I x E) and may have important implications for the evolution of IGF-1 related hormonal phenotypes in this species.
Tárgyszavak:	Természettudományok Biológiai tudományok idegen nyelvű folyóiratközlemény külföldi lapban folyóiratcikk
Megjelenés:	Frontiers in Ecology and Evolution. - 10 (2022), p. 1-12. -
További szerzők:	Mahr, Katharina Ölveczki Gyula Őri Levente Lendvai Ádám Zoltán (1977-) (biológus)
Pályázati támogatás:	OTKA-139021 OTKA K113108 OTKA 2019-2.1.11-TÉT-2019-0004 egyéb EFOP-3.6.1-16-2016-00022 EFOP
Internet cím:	Szerző által megadott URL DOI Intézményi repozitóriumban (DEA) tárolt változat
Borító:
Saját polcon: