Author

Helga Amdahl

Graminor (Norway)

Listed by name: these papers carry no ORCID for this author, so different people with the same name may be mixed together.

Biology Disciplines

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Genetics· 2 Plant Biology· 1

Signature Assays, Organisms & Methods

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Approach:statistical model· 3 Research Focus:cell type annotation· 1 Organism:plant (other)· 1 Assay:scRNA-seq· 1 Research Focus:variant effect prediction· 1

Frequent Co-Authors

Kristin H. Gylstrøm· 2 shared Odd Arne RognliiD· 2 shared Akhil Reddy PashapuiD· 1 shared Alsheikh Muath· 1 shared Andrea Bellucci· 1 shared Anna E. PalméiD· 1 shared Áslaug HelgadóttiriD· 1 shared Christer Persson· 1 shared

Activity by Year

2023-2026 · peak 1/yr

Co-Author Collaboration Network

10 top collaborators · 20 mutual co-author links

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2 shared papersPlant Biology

Kristin H. Gylstrøm

Mutual co-authors in cluster

Author profile →

3 papers

Recent·Most cited

A constitutively active cortical nitrate-uptake cell state underlies nitrogen-use efficiency in perennial ryegrass

Mallikarjuna Rao Kovi, Precious Guevarra, Sara Thu, Emma Tomine Morvik Kragholm, Akhil Reddy Pashapu, Felix Hernandez Nohr, Igor Ferreira da Costa, Martin Steinkopf, Kristin H. Gylstrøm, Helga Amdahl, Prabha Manishankar, John Michael Alcantara, Susanne S. Windju, Manikandan Veerabagu, Alsheikh Muath, , Odd Arne Rognli

The paper identifies a constitutively active cortical nitrate-uptake cell state in perennial ryegrass linked to nitrogen-use efficiency, showing differences in transporter expression between high- and low-NUE genotypes.

bioRxiv · Oct 14, 2026 · PreprintPlant Biology

Genomic prediction of agronomic traits in perennial ryegrass (Lolium perenne L.) and genotype x environment interactions at the limit of the species distribution

Natasha H. Johansen, Andrea Bellucci, Pernille B. Hansen, Petter Marum, Helga Amdahl, Kristin H. Gylstrøm, Odd Arne Rognli, Vilma Kemešytė, Gintaras Brazauskas, Morten Greve, Christer Persson, Mika Isolahti, Áslaug Helgadóttir, Rene Aavola, Torben Asp, Guillaume P. Ramstein

The paper evaluates genomic prediction models for agronomic traits in perennial ryegrass under genotype x environment interactions, showing improved accuracy when accounting for these interactions.

Theoretical and Applied Genetics · Oct 25, 2025Peer-reviewedGenetics

Multi-location trials and population-based genotyping reveal high diversity and adaptation to breeding environments in a large collection of red clover

Michelle Maria Nay, Christoph Grieder, Lea Antonia Frey, Helga Amdahl, J. Radović, Libor Jalůvka, Anna E. Palmé, Leif Skøt, Tom Ruttink, Roland Kölliker

This study analyzes genetic and phenotypic diversity in red clover accessions across Europe, revealing geographic genetic structure and local adaptation to breeding environments.

Frontiers in Plant Science · Mar 1, 2023Peer-reviewedGenetics