About: Photoperiodic regulation of diapause in linden bugs: are period and Clock genes involved?

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About: Photoperiodic regulation of diapause in linden bugs: are period and Clock genes involved? Goto Sponge NotDistinct Permalink

An Entity of Type : http://linked.opendata.cz/ontology/domain/vavai/Vysledek, within Data Space : linked.opendata.cz associated with source document(s)

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rdf:type	skos:Concept http://linked.opendata.cz/ontology/domain/vavai/Vysledek
Description	Although photoperiodism is undoubtedly one of the most important functions of the circadian system, the role of circadian clock genes remains unclear. We compared the expression of period and Clock genes in the head of the linden bug, Pyrrhocoris apterus, kept under diapause promoting short days (SD) and diapause-preventing long days (LD), using an RNase protection assay. There was only a weak diurnal rhythm in both period and Clock mRNA under LD and no rhythm under SD. Under SD, however, the level of period mRNA was about tenfold and that of clock mRNA about twofold higher than under LD. In a mutant that does not undergo diapause, even under SD, levels of both transcripts were low in both photoperiods. The differential regulation of the levels of two clock gene transcripts in a photoperiodic mutant, demonstrated for the first time in an animal species, strongly indicates a link between photoperiod, the magnitude of clock gene expression, and developmental outputs. Although photoperiodism is undoubtedly one of the most important functions of the circadian system, the role of circadian clock genes remains unclear. We compared the expression of period and Clock genes in the head of the linden bug, Pyrrhocoris apterus, kept under diapause promoting short days (SD) and diapause-preventing long days (LD), using an RNase protection assay. There was only a weak diurnal rhythm in both period and Clock mRNA under LD and no rhythm under SD. Under SD, however, the level of period mRNA was about tenfold and that of clock mRNA about twofold higher than under LD. In a mutant that does not undergo diapause, even under SD, levels of both transcripts were low in both photoperiods. The differential regulation of the levels of two clock gene transcripts in a photoperiodic mutant, demonstrated for the first time in an animal species, strongly indicates a link between photoperiod, the magnitude of clock gene expression, and developmental outputs. (en)
Title	Photoperiodic regulation of diapause in linden bugs: are period and Clock genes involved? Photoperiodic regulation of diapause in linden bugs: are period and Clock genes involved? (en)
skos:prefLabel	Photoperiodic regulation of diapause in linden bugs: are period and Clock genes involved? Photoperiodic regulation of diapause in linden bugs: are period and Clock genes involved? (en)
skos:notation	RIV/60077395:_____/03:60033142!RIV/2004/AV0/A60004/N
http://linked.open.../vavai/riv/strany	2510;2515
http://linked.open...avai/riv/aktivita	P Z
http://linked.open...avai/riv/aktivity	P(GA204/01/0404), P(GA206/02/0900), Z(AV0Z5007907)
http://linked.open...iv/cisloPeriodika	N/A
http://linked.open...vai/riv/dodaniDat	2004
http://linked.open...aciTvurceVysledku	Syrová, Zdeňka Šauman, Ivo Doležel, David Hodková, Magdalena
http://linked.open.../riv/druhVysledku	J - Článek v odborném periodiku
http://linked.open...iv/duvernostUdaju	S - Úplné a pravdivé údaje nepodléhající ochraně podle zvláštních právních předpisů
http://linked.open...titaPredkladatele	Entomologický ústav AV ČR
http://linked.open...dnocenehoVysledku	620855
http://linked.open...ai/riv/idVysledku	RIV/60077395:_____/03:60033142
http://linked.open...riv/jazykVysledku	eng - angličtina
http://linked.open.../riv/klicovaSlova	period gene; clock gene; photoperiodism (en)
http://linked.open.../riv/klicoveSlovo	photoperiodism clock gene period gene
http://linked.open...odStatuVydavatele	CH - Švýcarská konfederace
http://linked.open...ontrolniKodProRIV	[6D12EF9984E7]
http://linked.open...i/riv/nazevZdroje	Cellular and Molecular Life Sciences
http://linked.open...in/vavai/riv/obor	ED
http://linked.open...ichTvurcuVysledku	4 (xsd:int)
http://linked.open...cetTvurcuVysledku	4 (xsd:int)
http://linked.open...ocetUcastnikuAkce	0 (xsd:int)
http://linked.open...nichUcastnikuAkce	0 (xsd:int)
http://linked.open...vavai/riv/projekt	Molecullar and Cellular Analysis of Circadian Biological Clock Function of circadian oscillators in behavioural rhythmicity and photoperiodism of insects
http://linked.open...UplatneniVysledku	2003
http://linked.open...v/svazekPeriodika	60
http://linked.open...iv/tvurceVysledku	Doležel, David Šauman, Ivo Hodková, Magdalena Syrová, Zdeňka
http://linked.open...n/vavai/riv/zamer	The use of insects for quality assessment and possible management of the ecosystems in Central Europe
issn	1420-682X
number of pages	6 (xsd:int)

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