A5088941533- Genetic diversity and population structure
- Animal Behavior and Reproduction
- Physiological and biochemical adaptations
- Fish Ecology and Management Studies
- Genomics and Phylogenetic Studies
- Genetic and phenotypic traits in livestock
- Reproductive biology and impacts on aquatic species
- Evolution and Genetic Dynamics
- Genetic Mapping and Diversity in Plants and Animals
- Genetic and Clinical Aspects of Sex Determination and Chromosomal Abnormalities
- Chromosomal and Genetic Variations
- Aquaculture disease management and microbiota
- Animal Genetics and Reproduction
- Marine Biology and Ecology Research
- Plant and animal studies
- Mollusks and Parasites Studies
- Identification and Quantification in Food
- Plant Molecular Biology Research
- Plant Reproductive Biology
- Aquaculture Nutrition and Growth
- Marine Bivalve and Aquaculture Studies
- Advanced Proteomics Techniques and Applications
- Cancer, Hypoxia, and Metabolism
- Bioinformatics and Genomic Networks
- Fish Biology and Ecology Studies
University of Turku
2015-2025
University of Gothenburg
2017-2025
University of Oslo
2016-2025
Natural History Museum
2024
University of Sheffield
2023
Göteborgs Stads
2022
Nofima
2019-2022
Fafo Foundation
2019-2022
Linnaeus University
2021-2022
Norwegian University of Life Sciences
2022
Key innovations are fundamental to biological diversification, but their genetic basis is poorly understood. A recent transition from egg-laying live-bearing in marine snails ( Littorina spp.) provides the opportunity study architecture of an innovation that has evolved repeatedly across animals. Individuals do not cluster by reproductive mode a genome-wide phylogeny, local genealogical analysis revealed numerous small genomic regions where all live-bearers carry same core haplotype....
Phenotypic plasticity is predicted to facilitate individual survival and/or evolve in response novel environments. Plasticity that facilitates should both permit colonization and act as a buffer against further evolution, with contemporary derived forms be similarly plastic for suite of traits. On the other hand, given importance maintaining internal homeostasis, populations encounter greater environmental heterogeneity plasticity. We tested evolutionary significance phenotypic coastal...
Abstract The implications of transitioning to single nucleotide polymorphism ( SNP s) from microsatellite markers MS have been investigated in a number population genetics studies, but the effect genomic location on amount information each type marker reveals has not explored detail. We developed novel flanking 1 kb regions 13 genic (within gene or <1 away gene) and nongenic (>10 annotated s threespine stickleback genome obtain comparable data for both types markers. analysed patterns...
Understanding the factors that shape evolution of gene expression is a central goal in biology, but molecular mechanisms behind this remain controversial. A related major ascertaining how such may affect adaptive potential species or population. Here we demonstrate temperature-driven changes fish adapted to differing thermal environments are constrained by level pleiotropy estimated either number protein interactions biological processes. Genes with low levels were main drivers both plastic...
We updated the genetic map of rainbow trout (Oncorhynchus mykiss) for 2 outcrossed mapping panels, and used this to assess putative chromosome structure recombination rate differences among linkage groups. then sex-specific maps make comparisons with other ancestrally polyploid species salmonid fishes, Arctic charr (Salvelinus alpinus) Atlantic salmon (Salmo salar) identify homeologous affinities within each ascertain homologous relationships species. Salmonid fishes exhibit a wide range in...
Given that the genome of males and females are almost identical with exception genes on Y (or W) chromosome or sex-determining alleles (in organisms without sex chromosomes), it is likely many downstream processes resulting in sexual dimorphism produced by changes regulation. In early stages evolution, as Y-chromosome degenerates, gene expression should be significantly impacted for residing pair regulatory mutations accumulate. However, this has rarely been examined because most model have...
Evidence implicating differential gene expression as a significant driver of evolutionary novelty continues to accumulate, but our understanding the underlying sources variation in expression, both environmental and genetic, is wanting. Heritability particular may be underestimated when inferred from genetic mapping studies, predominant "genetical genomics" approach study variation. Such uncertainty represents fundamental limitation testing for adaptive evolution at transcriptomic level. By...
Gene expression changes potentially play an important role in adaptive evolution under human-induced selection pressures, but this has been challenging to demonstrate natural populations. Fishing exhibits strong pressure against large body size, thus inducing evolutionary life history and other traits that may be slowly reversible once fishing ceases. However, there is a lack of convincing examples regarding the speed magnitude fisheries-induced evolution, thus, relevant underlying...
We applied a candidate gene mapping approach to an existing quantitative trait loci (QTL) data set for spawning date in rainbow trout (Oncorynchus mykiss) ascertain whether these genes could potentially account any observed QTL effects. Several were chosen their known or suspected roles reproduction, circadian, circannual timing, including salmon-type gonadotropin-releasing hormone 3A and 3B (GnRH3A GnRH3B), Clock, Period1, arylalkylamine N-acetlytransferase−1 −2 (AANAT-1 AANAT-2). Genes...
By taking advantage of a recently developed reference marker set for avian genome analysis we have constructed gene-based genetic map the collared flycatcher, an important "ecological model" studies life-history evolution, sexual selection, speciation, and quantitative genetics. A pedigree 322 birds from natural population was genotyped 384 single nucleotide polymorphisms (SNPs) 170 protein-coding genes 71 microsatellites. Altogether, 147 gene markers 64 microsatellites form 33 linkage...
Among vertebrates, teleost fishes have evolved the most impressive adaptations to variable oxygen tensions in water (Shoubridge and Hochachka 1980; Nilsson Randall 2010). Under conditions of deprivation (hypoxia), major changes gene expression are mediated by hypoxia-inducible factors (HIF alpha). Here we show that hif alpha genes were duplicated specific whole-genome duplication. Although one each paralogous pair was lost teleosts, both copies retained cyprinids. Computational analyses...
Understanding how populations adapt to changing environmental conditions is a long-standing theme in evolutionary biology. Gene expression changes have been recognized as an important driver of local adaptation, but relatively little known regarding the direction change and particular, about interplay between plastic gene expression. We previously shown that profiles European grayling (Thymallus thymallus) inhabiting different thermal environments include both components. However, whether...
ABSTRACT Tremendous variation in sperm morphology is observed across the animal kingdom. Within avian taxa, songbirds (infraorder Passerides) have largest morphology. Their spermatozoa move by using energy generated midpiece, which formed multiple mitochondria fusing together during spermatogenesis. However, very little known regarding number of required to form songbird midpiece. Based on previous research showing an association midpiece length and mitochondrial DNA (mtDNA) copy zebra finch...
Pro-opiomelanocortin (POMC) is a precursor for several important peptide hormones involved in variety of functions ranging from stress response to energy homeostasis. In mammals and fish, the POMC-derived α-melanocyte stimulating hormone (MSH) known be appetite suppression through its interaction with melanocortin-4 receptors. The details homeostasis fishes are beginning elucidated many genes mammalian neuroendocrine signaling pathways being discovered fish. salmonid such as rainbow trout,...
Comparative genomics approaches help to shed light on evolutionary processes that shape differentiation between lineages. The nine-spined stickleback (Pungitius pungitius) is a closely related species of the ecological 'supermodel' three-spined (Gasterosteus aculeatus). It an emerging model system for biology research but has garnered less attention and lacks extensive genomic resources. To expand these resources aid study sticklebacks in phylogenetic framework, we characterized...
Recent research indicates that low genetic variation in individuals can increase susceptibility to parasite infection, yet evidence from natural invertebrate populations remains scarce. Here, we studied the relationship between heterozygosity, measured as AFLP-based inbreeding coefficient fAFLP , and gregarine burden eleven damselfly, Calopteryx splendens, populations. We found populations, 5-92% of males were parasitized by endoparasitic gregarines (Apicomplexa: Actinocephalidae). Number...
The loss of Y-linked genes during sex chromosome evolution creates a potentially deleterious low gene dosage in males. Recent studies have reported different strategies compensation. Unfortunately, most these investigated taxa with comparatively old systems, which may limit insights into the compensation and thus causes strategies. Using deep RNA sequencing, we investigate differential expression patterns along young XY chromosomes threespine sticklebacks. Our strata-specific analyses...
Abstract A common challenge in phylogenetic reconstruction is to find enough suitable genomic markers reliably trace splitting events with short internodes. Here, we present analyses based on genomewide single‐nucleotide polymorphisms ( SNP s) of an enigmatic avian radiation, the subspecies complex Afrocanarian blue tits Cyanistes teneriffae ). The two sister species, Eurasian tit caeruleus ) and azure cyanus ), constituted out‐group. We generated a large data set s for analysis population...
In recent years, the field of sexual selection has exploded, with advances in theoretical and empirical research complementing each other exciting ways. This perspective piece is product a “stock-taking” workshop on conflict. Our aim to identify deliberate outstanding questions stimulate discussion rather than provide comprehensive overview entire field. These are organized into four thematic sections we deem essential First focus evolution mate choice mating systems. Variation quality can...
Abstract Cardiomyopathy syndrome (CMS) caused by piscine myocarditis virus is a major disease affecting the Norwegian Atlantic salmon industry. Three different populations of from Mowi breeding program were used in this study. The first 2 (population 1 and 2) naturally infected field outbreak, while third population 3) went through controlled challenged test. aim study was to estimate heritability, genetic correlation between perform genome-wide association analysis for resistance disease....