Browsing Institutt for biovitenskap by Title
Now showing items 1200-1219 of 2919
-
(Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2023)Speciation involves reproductive isolation, which can occur by hybridization barriers acting in the endosperm of the developing seed. The nuclear endosperm is a nutrient sink, accumulating sugars from surrounding tissues, ...
-
Genetic and molecular analysis of the functional role of the AGL36 MADS-box Type I transcription factorRestricted Access (Master thesis / Masteroppgave, 2014)In angiosperms, seed development is a tightly regulated process often involving different epigenetic mechanisms such as a phenomenon known as imprinting that regulates parental gene expression in a parent-of-origin-dependent ...
-
(Master thesis / Masteroppgave, 2021)
-
(Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2014)Divergent selection pressures induced by different environmental conditions typically lead to variation in life history, behavior, and morphology. When populations are locally adapted to their current environment, selection ...
-
(Journal article / Tidsskriftartikkel / AcceptedVersion; Peer reviewed, 2020)Sensitivity to external demands is essential for adaptation to dynamic environments, but comes at the cost of increased risk of adverse outcomes when facing poor environmental conditions. Here, we apply a novel methodology ...
-
(Master thesis / Masteroppgave, 2016)
-
(Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2019)The human pathogens N. gonorrhoeae and N. meningitidis display robust intra- and interstrain glycan diversity associated with their O-linked protein glycosylation (pgl) systems. In an effort to better understand the evolution ...
-
(Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2023)Individual heterozygosity may influence the expression of fitness‐related traits, via genome‐wide or local genetic effects. Earlier studies have shown negative relationships between heterozygosity and sperm variation, ...
-
(Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2016)We compared the genetic differentiation in the green sea urchin Strongylocentrotus droebachiensis from discrete populations on the NE Atlantic coast. By using eight recently developed microsatellite markers, genetic structure ...
-
(Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2023)Genetic diversity is a key part of biodiversity, threatened by human activities that lead to loss of gene flow and reduction of effective population sizes. Gene flow is a result of both landscape connectivity and demographic ...
-
(Journal article / Tidsskriftartikkel / AcceptedVersion; Peer reviewed, 2019)Knowledge of genetic diversity among wild populations is becoming increasingly important as more species are recognized for their bioeconomic value. Industrialization of natural resources, such as kelp in the marine shallow ...
-
(Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2015)Knowing the breeding system of a species is important in order to understand individual variation in reproductive success. Large variation in reproductive success and thus reproductive skew strongly impacts on the effective ...
-
(Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2020)Understanding how populations are structured in space and time is a central question in evolutionary biology. Parasites and their hosts are assumed to evolve together, however, detailed understanding of mechanisms leading ...
-
(Master thesis / Masteroppgave, 2013)Sorghum is ranked the fifth most produced food crop in the world, and is a dietary staple for over 500 million people in over 30 countries. It is the second most produced food crop in Africa, where cultivation of local ...
-
(Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2022)Abstract In northern European Cochlearia (Brassicaceae), considerable chromosome variation has taken place without corresponding morphological differentiation, resulting in an intricate species complex including ...
-
(Master thesis / Masteroppgave, 2015)Section Cochlearia (Brassicaceae) includes highly polymorphic species complexes with regard to ploidal level, ecological adaptation and distribution. Low levels of chloroplast DNA divergence suggest that taxa most likely ...
-
(Master thesis / Masteroppgave, 2021)
-
(Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2020)Genomic imprinting regulates parent‐specific transcript dosage during seed development and is mainly confined to the endosperm. Elucidation of the function of many imprinted genes has been hampered by the lack of corresponding ...
-
(Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2014)Crossing experiments indicate that hybrid sterility barriers frequently have developed within diploid, circumpolar plant species of the genus Draba. To gain insight into the rapid evolution of postzygotic reproductive ...
-
(Master thesis / Masteroppgave, 2015)Various stressors such as higher temperatures, grazing by sea urchins, and anthropogenic effects may threaten kelp forests around the world. Conservation efforts can benefit from an understanding of current and historic ...