J. Lukas

Repair of DNA double-strand breaks leaves heritable impairment to genome function

This study shows that DNA double-strand breaks cause lasting chromatin changes that are heritable and impair gene function beyond DNA repair.

Increased thermal tolerance under anoxic conditions in an extremophile fish from hot sulfur springs in Mexico

This study examines thermal tolerance of two extremophile fish species under normoxic and hypoxic conditions, finding P. sulphuraria has higher CTmax under hypoxia compared to G. eurystoma.

Experienced Social Partners Hinder Learning Performance in Naive Clonal Fish

This study shows that experienced social partners can hinder learning performance in naive clonal fish, challenging the assumption that social learning always enhances learning efficiency.

Discovery of a new but established population of the guppy in Germany

The paper describes a newly discovered established population of guppies in a thermally polluted river in Germany, including population size estimates and parasitism observations.

Consistent behavioural syndrome across seasons in an invasive freshwater fish

The paper investigates whether dispersing guppies exhibit different behavioral traits than those remaining in the source population, finding consistent behavioral syndromes across seasons and populations.

The dynamic equilibrium of nascent and parental MCMs safeguards replicating genomes

This paper investigates how MCM2-7 complexes are maintained across cell divisions to ensure genome stability, finding that MCMBP facilitates the nuclear import of nascent MCM3-7 subunits to sustain pre-RC formation.

Social networks in the presence and absence of visual cues

This study compares social dynamics between cave and surface Atlantic mollies under different densities, finding surface mollies maintain social interactions better at low density.

Guppies prefer to follow large (robot) leaders irrespective of own size

The study shows that guppies follow larger robotic fish leaders regardless of their own size or risk-taking behavior, indicating leadership preference is based on size rather than behavior.

Using a robotic fish to investigate individual differences in social responsiveness in the guppy

This study uses a robotic fish to examine individual differences in social responsiveness in guppies, finding that responsiveness is an independent trait separate from boldness and activity.

Mutational signatures reveal the role of RAD52 in p53-independent p21 driven genomic instability

This study shows chronic p21WAF1/Cip1 expression causes genomic instability by suppressing DNA repair pathways, revealing Rad52 as a key player in this process.