D. Ebert

Trehalose mediates salinity-stress tolerance in a crustacean

This study shows that trehalose production, mediated by the TPS gene, enables Daphnia magna to tolerate salinity stress, with tolerance linked to native habitat salinity and local adaptation.

Genome-wide allele frequency changes reveal that dynamic metapopulations evolve differently

The paper analyzes SFS dynamics in a Daphnia magna metapopulation to show how propagule model and immigration influence allele frequency shifts compared to classical populations.

Sperm competition favours intermediate sperm size in a hermaphrodite

This study investigates how sperm size affects post-mating success in the flatworm Macrostomum lignano, finding that intermediate sperm size provides the highest competitiveness.

Ectopical expression of bacterial collagen-like protein supports its role as adhesin in host-parasite coevolution

The paper demonstrates that a collagen-like protein (CLP) from Pasteuria ramosa functions as a genotype-specific adhesin in host-parasite interactions by expressing it in Bacillus thuringiensis.

Structural and functional analysis of natural capsid variants reveals sialic-acid independent entry of BK polyomavirus

This study analyzes natural VP1 mutations in BKPyV to show some variants can enter cells without sialic acid, suggesting an alternative receptor.

Genetic drift shapes the evolution of a highly dynamic metapopulation

The paper tests the propagule model in a Daphnia magna metapopulation, finding reduced genetic diversity and increased differentiation in isolated subpopulations due to genetic drift.

Population genetic analysis reveals the role of natural selection and phylogeography on genome-wide diversity in an extremely compact and reduced microsporidian genome

This study analyzes the genome-wide diversity of the microsporidian parasite O. colligata, revealing the roles of natural selection, phylogeography, and co-phylogeography in shaping its compact genome.

A genomic analysis of parasite-mediated population differentiation in a metapopulation

The paper analyzes genome-wide allele frequencies in Daphnia magna subpopulations with and without a parasite to identify genomic sites of diversifying selection and immune-related genes involved in host adaptation.

Demographic history shapes genomic variation in an intracellular parasite with a wide geographic distribution

This study examines genomic variation in the microsporidium Hamiltosporidium to understand factors shaping its population structure and demographic history across Eurasian Daphnia magna populations.

Sex differences in the strength of selection under facultative sex

The paper shows that sex differences affect selection strength in facultative sexual species, challenging current assumptions about conditional gene expression.

Genetic slippage after sex maintains diversity for parasite resistance in a natural host population

The paper shows that genetic slippage after sex in Daphnia magna maintains resistance diversity despite strong selection against parasites.

A two-locus system with strong epistasis underlies rapid parasite-mediated evolution of host resistance

The paper identifies a two-locus epistatic system driving rapid host resistance evolution in response to a bacterial parasite.

Estimation of the propensity for sexual selection in a cyclical parthenogen

The paper examines sexual selection in Daphnia magna by observing mating behavior and genetic markers, finding evidence of assortative mating and sperm competition.

Evolution of sperm morphology in a crustacean genus with fertilization inside an open brood pouch.

This study examines sperm morphology evolution in Daphnia, finding small sperm despite internal fertilization and divergence in sperm length and structure across subgenera.

Environmental sources of bacteria and genetic variation in behavior influence host-associated microbiota

The paper shows that genetic differences in Daphnia behavior affect the presence of environmental bacteria in their microbiome.

Rearing temperature and fatty acid supplementation jointly affect membrane fluidity and heat tolerance in Daphnia

This study shows that rearing temperature and fatty acid supplementation affect membrane fluidity and heat tolerance in Daphnia, supporting the homeoviscous adaptation hypothesis.