Bernard Kim

@bernardkim.bsky.social

Assistant Professor at Princeton EEB. Popgen, evolution, genomics, and large-scale biodiversity datasets. Mostly working on Drosophila for now.

Check out our paper in Evolution Letters! We used D. melanogaster pigmentation as a focal trait to explore parallelism in phenotypic and genomic responses to environmental change - read more at the link below 👇

Evolution Letters@evolletters.bsky.social · last yr.

How predictably does complex trait adaptation proceed over space and time in wild populations? doi.org/10.1093/evle... Now in @evolletters.bsky.social by @skylerberardi.bsky.social, @paulrschmidt.bsky.social et al. 📷: Dr. Rush Dhillon

Figure showing the experimental overview as a graphic. Remaining alt text taken from the figure caption in the paper: (A) we sampled flies from six wild orchard populations ranging from Homestead, FL, to Lancaster, MA, and established isofemale lines in the laboratory. (B) We returned to a focal orchard in Media, PA, at early- and late-season timepoints and collected flies to capture evolutionary patterns following winter and summer conditions. (C) We then seeded outdoor mesocosms (N = 9) with an outbred population originating from early-season collections in Media, PA, and sampled flies at the end of summer (mid-season) and fall (late-season) to determine if seasonal patterns are recapitulated in experimental populations controlled for migration, drift, and cryptic population structure. (D) Across each wild or experimental context, we sampled flies, established lines in the lab, completed common garden treatment to remove environmental effects, and scored females for abdominal pigmentation. We also conducted pooled DNA sequencing on additional flies sampled from each population to map genomic patterns for candidate pigmentation SNPs.

I am delighted to be starting as an assistant professor in the Department of Molecular Genetics & Microbiology at the University of Florida in January 2026. The lab is broadly interested in the functional, developmental, and evolutionary genetics of cell types and organs across flies and beyond 🪰🧬

Bild

Please share! In addition an important resource for improving human health, it will grow to be an incredible resource for science. E.g. we envision layering population genomic data across all species and connecting to other insect systems. There are so many cool questions to ask w/this kind of data.

mara lawniczak@marakat.bsky.social · 2y ago

globally, there are ~3500 described mosquito species in the Culicidae family and many of these are important vectors of disease but only a small percentage have genomic resources. we are launching a pilot project to generate high quality reference genomes for 100 important mosquito species [1/3]

How is functional variation at large-effect loci maintained in natural populations? Thrilled to share our work showing how beneficial dominance reversal helps fruit flies maintain a resistance polymorphism as selection varies in their environment! A thread 🧵 1/n www.biorxiv.org/content/10.1...

Dominance reversal maintains large-effect resistance polymorphism in temporally varying environments

A central challenge in evolutionary biology is to uncover mechanisms maintaining functional genetic variation1. Theory suggests that dominance reversal, whereby alleles subject to fluctuating selectio...

biorxiv.org

With Hannah Gellert, Sam Church, Anton Suvorov, @petrovadmitri.bsky.social, and others, we use low-input (down to 30ng), single-insect Nanopore sequencing to help do 184 new genomes and address the near absence of genomic data for drosophilid species that cannot be cultured in the lab.

bioRxiv Evolutionary Biology@biorxiv-evobio.bsky.social · 3y ago

Single-fly assemblies fill major phylogenomic gaps across the Drosophilidae Tree of Life https://www.biorxiv.org/content/10.1101/2023.10.02.560517v1