Publications
NIBIOs employees contribute to several hundred scientific articles and research reports every year. You can browse or search in our collection which contains references and links to these publications as well as other research and dissemination activities. The collection is continously updated with new and historical material.
2017
Authors
Stig A. BorgvangAbstract
No abstract has been registered
Authors
Stig A. BorgvangAbstract
No abstract has been registered
Authors
Elli A. Koskela Takeshi Kurokura Tuomas Toivainen Anita Sønsteby Ola M Heide Daniel J. Sargent Sachiko Isobe Laura Jaakola Hrannar Hilmarsson Paula Elomaa Timo HytönenAbstract
• Vernalisation requirement is an agriculturally important trait that postpones the development of cold-sensitive floral organs until the spring. The family Rosaceae includes many agriculturally important fruit and berry crops that suffer from crop losses caused by frost injury to overwintering flower buds. Recently, a vernalisation-requiring accession of the Rosaceae model woodland strawberry (Fragaria vesca) has been identified in northern Norway. Understanding the molecular basis of the vernalisation requirement in this accession would advance the development of strawberry cultivars better adapted to temperate climate. • We use gene silencing, gene expression analysis, genetic mapping and population genomics to study the genetic basis of the vernalisation requirement in woodland strawberry. • Our results indicate that the woodland strawberry vernalisation requirement is endemic to northern Norwegian population, and mapping data suggest the orthologue of TERMINAL FLOWER1 (FvTFL1) as the causal floral repressor. We demonstrate that exceptionally low temperatures are needed to downregulate FvTFL1 and to make these plants competent to induce flowering at low postvernalisation temperatures in the spring. • We show that altered regulation of FvTFL1 in the northern Norwegian woodland strawberry accession postpones flower induction until the spring, allowing plants to avoid winter injuries of flower buds that commonly occur in temperate regions.
Authors
Anne Lena Krasniqi Michael M. Blanke Achim Kunz Lutz Damerow Alan N. Lakso Mekjell MelandAbstract
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Trygve S. AamlidAbstract
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Authors
Stephanie Eisner Martina Flörke Alejandro Chamorro Prasad Daggupati Chantal Donnelly J. Huang Yeshewatesfa Hundecha Hagen Koch Andrey Kalugin Inna Krylenko Vimal Mishra Mikołaj Piniewski Luis Samaniego Ousmane Seidou Markus Wallner Valentina KrysanovaAbstract
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Abstract
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Abstract
No abstract has been registered
Authors
Rumen Tomov René Eschen Jean-Claude Grégoire Christo Nikolov Andrei Orlinski Alberto Santini Tiit Maaten Halldors Sverrisson Bjørn Økland Anna Maria VettrainoAbstract
Sentinel plantings are a powerful tool to identify harmful organisms before they arrive in a country, but the use of this novel tool is limited by reduced awareness. Another limitation for the establishment of sentinel nurseries are plant health regulations that affect the import of planting material of alien species for use in sentinel plantings. However, import of propagation material is often considered low risk compared to rooted plants and more relaxed regulations may apply. Import regulations may vary among countries and special conditions for import for scientific purposes may apply. We aimed to make an overview of regulations for import and planting of propagation material for use in sentinel plantings in countries around the world. During 2016 a questionnaire survey was conducted in more than 40 countries around the world to identify national legislation on the import of seeds of exotic tree species and their use for scientific purposes in open-field situations. This study will provide an overview on regulations that need to be observed while sentinel nurseries are settled both using seeds for planting and trees grown from these seeds. The results will be a useful tool to facilitate the selection of locations for future sentinel nurseries.