Publikasjoner
NIBIOs ansatte publiserer flere hundre vitenskapelige artikler og forskningsrapporter hvert år. Her finner du referanser og lenker til publikasjoner og andre forsknings- og formidlingsaktiviteter. Samlingen oppdateres løpende med både nytt og historisk materiale. For mer informasjon om NIBIOs publikasjoner, besøk NIBIOs bibliotek.
2004
Forfattere
Torjus Bolkesjø Hans Fredrik HoenSammendrag
Det er ikke registrert sammendrag
Forfattere
Carl Gunnar Fossdal Øystein Johnsen Rüdiger Baumann Jørgen A. Mølmann Ola Gram Dæhlen Nina Elisabeth Nagy Tore SkrøppaSammendrag
Research indicate that the female parents of Norway spruce adjust these timing events in their progeny according to the prevailing temperature conditions during seed development. Reproduction in a cold environment advances bud-set and cold acclimation in the autumn and dehardening and flushing in spring, whereas a warm reproductive environment delays these progeny traits by an unknown non-Mendelian mechanism. We have performed identical crosses in combination with timed temperature treatments during shorter and longer periods from female meiosis, pollen tube growth, syngamy and embryogenesis, tested the progenies for bud-set and frost hardiness, and concluded that the effect of temperature most likely is a response to accumulated heat during embryogenesis and seed maturation. Our first attempt to look for a molecular mechanism has revealed that transcription of PHYO, PHYP and PHYN and the class IV chitinase PaChi4 (using RealTime PCR) all show higher transcription levels in progenies born under cold conditions than their full-sibs born under warmer conditions. This result is consistent with preliminary findings that methylation of cytosine in total DNA is higher in progenies reproduce under warm conditions than their colder full-sib counterparts. If these observations are related to methylation, we may explain why progenies with a memory of a past time cold embryogenesis are more sensitive to short days than their full-sibs with a warmer embryonic history.
Forfattere
Lone Ross Gobakken Johan Mattsson Bjørn Jacobsen Fred G. EvansSammendrag
Det er ikke registrert sammendrag
Forfattere
Ingrid OlesenSammendrag
In spring 2003, the Nordic Gene Bank Farm Animals (NGH) proposed a follow up of the “Strategy for the conservation of genetic resources in the Nordic countries 2001-2004”. It was proposed to formulate criteria for sustainable animal breeding and guidelines for breeding organizations. Thus, the Norwegian Gene Resource Council decided to initiate the development of criteria for sustainable animal breeding and guidelines for breeding organizations in Norway.
Forfattere
Geir Wæhler GustavsenSammendrag
Det er ikke registrert sammendrag
Forfattere
Geir Wæhler GustavsenSammendrag
Det er ikke registrert sammendrag
Forfattere
Ingolf Nes Knut G Berdal Grethe Synnøve Foss Casper Linnestad Martinus Løvik Audun Helge Nerland Sonja Klemsdal Vibeke Thrane Jan AlexanderSammendrag
Det er ikke registrert sammendrag
Forfattere
Ingolf Nes Knut G Berdal Grethe Synnøve Foss Casper Linnestad Martinus Løvik Audun Helge Nerland Sonja Klemsdal Vibeke ThraneSammendrag
Det er ikke registrert sammendrag
Forfattere
Ingolf Nes Knut G Berdal Grethe Synnøve Foss Casper Linnestad Martinus Løvik Audun Helge Nerland Sonja Klemsdal Vibeke ThraneSammendrag
Det er ikke registrert sammendrag
Forfattere
Tor J. JohansenSammendrag
Det er ikke registrert sammendrag