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Boessenkool, Sanne; Bruch, Angela A.; ter Schure, Anna Theresia Maria; Gasparyan, Boris; Bussmann, Rainer W. & Brysting, Anne Krag
[Show all 10 contributors for this article]
(2023).
Sedimentary ancient DNA metabarcoding for the recognition of Paleolithic human plant use.
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Alling, Renate; Brysting, Anne Krag; Grini, Paul; Bjerkan, Katrine & Myking, Ida Velle
(2022).
Environmental and genetic factors affecting endosperm based post-zygotic hybridization barriers.
Show summary
Proper development of the triploid endosperm is vital for seed viability. During the early stages of development, the endosperm works as a nutrient sink, accumulating sugars from the surrounding tissues. During this developmental phase, endosperm division is devoid of cytokinesis, resulting in a syncytium. After sufficient accumulation of nutrients, the endosperm nuclei undergo cellularization, switching to serve as a nutrient source for the embryo. Tight regulation of cellularization is therefore vital for embryo development. Crosses between Arabidopsis thaliana as maternal contributor and A. arenosa as pollen donor cause late cellularization and reduced germination rate in hybrid seeds. Here we show the opposite cellularization phenotype in hybrid seeds when using A. lyrata as pollen donor also resulting in low germination rate. Stage specific endosperm reporters display ectopic expression in developing hybrid endosperm confirming disturbance of the source-sink endosperm phase change. We also observe accession genotype as well as single loci effects on the severity of the barrier. Interestingly, we found that temperature can alleviate this hybridization barrier in opposite directions depending on whether the hybrid seed exhibit early or late endosperm cellularization. We postulate that temperature dependency might be a general mechanism affecting endosperm-based hybridization barriers.
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Brandrud, Marie Kristine; Paun, Ovidiu; Lorenzo, Maria Teresa; Nordal, Inger & Brysting, Anne Krag
(2022).
Parallel ecotypic divergence in the autotetraploid Cochlearia officinalis in Northern Norway.
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Birkeland, Siri; Gustafsson, A Lovisa S; Gizaw, Abel ; Chala, Desalegn ; Fraccasetti, Marco & Brazier, Thomas
[Show all 13 contributors for this article]
(2022).
What drives the rapid buildup of sterility barriers in the Arctic crucifer Draba nivalis?
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Gullvåg, Rebekka; Vollsnes, Ane Victoria; Bryn, Anders; Brysting, Anne Krag & Vatne, Astrid
(2021).
Effects of high-latitude light conditions on stomatal conductance and photosynthesis in white clover (Trifolium repens) .
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Birkeland, Siri; Slotte, Tanja; Brochmann, Christian; Brysting, Anne Krag; Gustafsson, Lovisa & Nowak, Michael D
(2021).
What can the cold-induced transcriptomes of Arctic Brassicaceae tell us about the evolution of cold tolerance?
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ter Schure, Anneke; Bajard, Manon Julietto Andree; Loftsgarden, Kjetil; Høeg, Helge Irgens; Ballo, Eirik Magnus Gottschalk & Bakke, Jostein
[Show all 12 contributors for this article]
(2021).
Disentangling anthropogenic and environmental drivers of biological change in southeastern Norway during the Holocene.
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ter Schure, Anneke; Bajard, Manon Julietto Andree; Loftsgarden, Kjetil; Høeg, Helge Irgens; Ballo, Eirik Magnus Gottschalk & Bakke, Jostein
[Show all 12 contributors for this article]
(2021).
Anthropogenic and environmental drivers of biological change in southeastern Norway during the Holocene.
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Tjessem, Ingrid Vesterdal; Eidesen, Pernille Bronken & Brysting, Anne Krag
(2021).
Polyploidy in Saxifraga oppositifolia. A shift in reproductive parameters, a result of environmental adaptations?
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Bjerkan, Katrine; Butenko, Melinka Alonso & Brysting, Anne Krag
(2020).
The weed that conquered plant scientists: the model organism Arabidopsis thaliana.
NBS-nytt.
ISSN 0801-3535.
1,
p. 8–11.
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Huseby, Lise Grønnerød; Nowak, Michael; Gustafsson, A Lovisa S; Brochmann, Christian & Brysting, Anne Krag
(2019).
How fast does the Speciation Clock tick?
Show summary
Species are the most fundamental unit in nature, yet we know surprisingly little about how long it takes for new, reproductively isolated species to originate and what factors influence the rate of speciation. Speciation depends on the evolution of reproductive barriers that make individuals reproductively isolated from one another. One potential factor that could impact how fast these reproductive barriers occur is mating system. It has been suggested that self-fertilization, a common mating system both in wild and cultivated plants and also found in animals, can drive the evolution of postzygotic reproductive isolation, and thus create new species.
Our aim is to test whether selfing species diverge into new species faster than outcrossing species. We will therefore test the rate at which reproductive barriers occur within species with different mating systems, we will target one selfing and one outcrossing plant species and identify the number of loci responsible for reproductive isolation between populations representing different degrees of population divergence.
For this project we will use two plant species, the selfer Draba nivalis and the outcrosser Arabidopsis lyrata and perform quantitative trait locus (QTL) mapping experiments aimed at identifying the number of loci responsible for reproductive isolation between populations representing different degrees of population divergence. For this we need to create intraspecific crosses and produce large F2 populations for genotyping and phenotyping. We will then test the ‘snowball effect’ in both species and compare the rate of accumulation of genes that contribute to reproductive isolation.
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Birkeland, Siri; Gustafsson, A Lovisa S; Brysting, Anne Krag; Brochmann, Christian & Nowak, Michael
(2019).
Same destination, but different roads? Overarching, but limited fine-scale molecular convergence in Arctic crucifers.
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Brysting, Anne Krag
(2019).
Speciation and reproductive barriers.
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Kenich, Håkon Muland; Bjerkan, Katrine; Bramsiepe, Jonathan; Grini, Paul Eivind & Brysting, Anne Krag
(2019).
An investigation of potential hybridisation barriers in Cochlearia / Scurvygrasses.
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Bjerkan, Katrine; Hornslien, Karina Stensland; Johannessen, Ida Marie; van Ekelenburg, Yuri Stephan; Bramsiepe, Jonathan & Brysting, Anne Krag
[Show all 7 contributors for this article]
(2019).
Temperature and genetic variation alter strength of the post-zygotic endosperm based barrier between A. thaliana and A.arenosa.
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Birkeland, Siri; Gustafsson, A Lovisa S; Brysting, Anne Krag; Brochmann, Christian & Nowak, Michael
(2018).
Testing for convergent signatures of selection in Arctic plants.
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Johannessen, Ida Marie; Hornslien, Karina Stensland; Krabberød, Anders Kristian; Bramsiepe, Jonathan; Brysting, Anne Krag & Grini, Paul Eivind
(2018).
The Genetic Basis of Post-Zygotic Hybridization Barriers Between Arabidopsis lyrata and A. arenosa.
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Steinthorsdottir, Lilja & Brysting, Anne Krag
(2017).
Investigating trophic interactions among arctic herbivorous species in a rapidly changing Arctic tundra using DNA metabarcoding and microhistology.
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Meyer, Pernille & Brysting, Anne Krag
(2017).
Identification of seasonal changes in diet of the Svalbard Reindeer (Rangifer tarandus platyrhynchus) and validation of DNA metabarcoding as a tool for diet analysis.
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Bruholt, Eirin & Brysting, Anne Krag
(2017).
The systematic relationships of the North Atlantic and
Atlantic Cochlearia L. taxa.
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Brysting, Anne Krag & Grini, Paul Eivind
(2017).
The molecular basis of postzygotic hybridization barriers in plants.
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Johannessen, Ida Marie; Hornslien, Karina Stensland; Krabberød, Anders Kristian; Bramsiepe, Jonathan; Brysting, Anne Krag & Grini, Paul Eivind
(2017).
The genetic basis of post-zygotic hybridization barriers between Arabidopsis lyrata and A. arenosa.
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Johannessen, Ida Marie; Lafon-Placette, Clément; Hornslien, Karina Stensland; Bramsiepe, Jonathan; Bjerkan, Katrine & Brysting, Anne Krag
[Show all 8 contributors for this article]
(2017).
The effect of gene and genome dosage on hybridization barriers in Arabidopsis lyrata and Arabidospsis arenosa.
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Birkeland, Siri; Gustafsson, A Lovisa S; Slotte, Tanja; Brysting, Anne Krag; Brochmann, Christian & Nowak, Michael
(2017).
Testing for convergent molecular evolution in Arctic plants.
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Stedje, Brita; Mwafongo, Elizabeth Brighton Mvula & Brysting, Anne Krag
(2017).
Subgeneric delimitation and character evolution in Albuca subg. Albuca (Asparagaceae subfamily Scilloideae).
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Birkeland, Siri; Gustafsson, A Lovisa S; Brysting, Anne Krag; Slotte, Tanja; Brochmann, Christian & Nowak, Michael
(2016).
Testing for convergent evolution of cold tolerance in Arctic plants.
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Fagerli, Lisa Amalie Lunde; Bårdsen, Bård-Jørgen; Brysting, Anne Krag & Nielsen, Anders
(2016).
Plant-pollinator interactions along an elevation gradient in northern Norway.
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Fagerli, Lisa Amalie Lunde; Bårdsen, Bård-Jørgen; Brysting, Anne Krag & Nielsen, Anders
(2016).
Plant-pollinator interactions along an elevation gradient in Northern Norway.
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Brandrud, Marie Kristine; Paun, Ovidiu; Nordal, Inger; Lorenzo, Maria Teresa & Brysting, Anne Krag
(2016).
Polyploid and ecological adaptation in Cochlearia L.
(Brassicaceae) in Northern Norway.
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Brysting, Anne Krag
(2016).
Blomstene og biene - historier om koevolusjon.
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Nielsen, Anders & Brysting, Anne Krag
(2016).
Blomstene og biene - evolusjon og økologi.
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Brysting, Anne Krag
(2016).
Hvordan nye arter kan oppstå over natten.
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Haug, Solveig; Karbassioon, Arrian; Brysting, Anne Krag & Nielsen, Anders
(2015).
Pollinator interactions with wild raspberry and the surrounding plant community along an altitudinal gradient.
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Evankow, Ann; Fredriksen, Stein; Christie, Hartvig C; Junge, Claudia & Brysting, Anne Krag
(2015).
Genetic tools reveal diversity and structure of kelp forests in Norway.
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Evankov, Ann Marie; Fredriksen, Stein; Christie, H.; Junge, Claudia & Brysting, Anne Krag
(2015).
Population genetic diversity and structure of two kelp species (Laminariales) in Norway.
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Brandrud, Marie Kristine; Paun, Ovidiu; Nordal, Inger & Brysting, Anne Krag
(2015).
Polyploidy and ecological adaptation in Cochlearia in Northern Norway.
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Grundt, Hanne H.; Brysting, Anne Krag & Elven, Reidar
(2015).
Storlind Tilia platyphyllos i Østfold og Norge: Rød eller svart?
Blyttia : Norsk botanisk forenings tidsskrift.
ISSN 0006-5269.
73,
p. 13–22.
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Brysting, Anne Krag
(2015).
Polyploiditet: Hva skjer når planter fordobler kromosomtallet sitt?
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Svoen, Mildrid Elvik & Brysting, Anne Krag
(2014).
Population dynamics of Silene acaulis in the High Arctic.
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Olsen, Luka Natassja & Brysting, Anne Krag
(2014).
Icelandic Cochlearia (Scurvygrasses) – arctic or European, or both?
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Jørgensen, Marte Holten & Brysting, Anne Krag
(2014).
Er livet et tre?
Biolog.
ISSN 0801-0722.
2014(2),
p. 8–13.
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Brysting, Anne Krag
(2014).
Polyploidy stories from the Arctic and North Atlantic region.
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Brysting, Anne Krag
(2014).
Polyploiditet: Hva skjer når planter fordobler kromosomtallet sitt?
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Brandrud, Marie Kristine; Paun, Ovidiu & Brysting, Anne Krag
(2014).
Polyploidy and ecotype variation in Cochlearia officinalis L. and related species.
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Brandrud, Marie Kristine; Nordal, Inger; Paun, Ovidiu; Lorenzo, Maite; Bjorå, Charlotte Sletten & Stabbetorp, Odd Egil
[Show all 7 contributors for this article]
(2014).
Polyploid and ecotype variation in the Cochlearia officinalis complex.
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Nitter, Eivind L. & Brysting, Anne Krag
(2013).
Effects of sheep grazing on bumblebee abundance in an alpine ecosystem.
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Branderud, Marie K. & Brysting, Anne Krag
(2013).
Polyploidy and ecotype variation in the Cochlearia officinalis complex.
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Brysting, Anne Krag
(2013).
Polyploidy and self-incompatibility in Arabidopsis and other polyploidy stories.
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Brysting, Anne Krag
(2013).
Cochlearia officinalis in Norway. Report on the work carried out using the SRF fund.
Newsletter of the Systematics Association.
ISSN 1744-5701.
35,
p. 13–14.
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Brysting, Anne Krag
(2013).
Polyploiditet: Hva skjer når planter fordobler kromosomtallet sitt? Hvordan bidrar polyploiditet til artskunnskapen vår? Har vi plutselig mange flere arter enn vi trodde?
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Brysting, Anne Krag & Jørgensen, Marte Holten
(2013).
Livets tre tegnes på nytt. DNA-analyser gir kunnskap omslektskapet mellom levende organismer.
Genialt.
ISSN 0804-225X.
3-2013,
p. 10–13.
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Brysting, Anne Krag
(2013).
Müntzings klassiske lærebok-eksempel: allotetraploid Galeopsis tetrahit.
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Brysting, Anne Krag
(2013).
Livets tre i lys av molekylære metoder.
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Jørgensen, Marte Holten; Lagesen, Karin; Mable, Barbara & Brysting, Anne Krag
(2012).
Using high-throughput sequencing to investigate evolution of self-incompatibility genes in the Brassicaceae: strategies and challenges.
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Bendiksby, Mika; Tribsch, Andreas; Borgen, Liv; Travnicek, Pavel & Brysting, Anne Krag
(2012).
Revisiting Müntzing's classical textbook example of allotetraploid Galeopsis tetrahit - using molecular tools.
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Botnen, Synnøve Smebye; Kauserud, Håvard; Davey, Marie Louise; Brysting, Anne Krag & Eidesen, Pernille Bronken
(2020).
Biodiversity in the dark: root-associated fungi in the Arctic.
Universitetet i Oslo.
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Hansen, Simen Hyll; Kauserud, Håvard; Davey, Marie Louise; Thoen, Ella; Vik, Unni & Brysting, Anne Krag
(2018).
Climate and host identity structure fungal endophyte communities.
Universitetet i Oslo.
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Aas, Anders Bjørnsgaard; Davey, Marie Louise; Kauserud, Håvard; Easterday, William Ryan & Brysting, Anne Krag
(2017).
Root-associated microbes: Spatial Oddities and Methodological Perspectives.
Universitetet i Oslo.