Craig D. Wells
banner
craigdwells.bsky.social
Craig D. Wells
@craigdwells.bsky.social
PhD Candidate at University of Idaho 🧬
Studying hybridization in Pacific Trout 𓆝
He/him
Reposted by Craig D. Wells
Our Editorial for our upcoming special issue in Molecular Ecology: Conservation Genomics—Making a Difference onlinelibrary.wiley.com/doi/10.1111/...
Conservation Genomics—Making a Difference
Conservation genomics has increasingly transitioned from a promising concept to a science that integrates a range of advanced analytical approaches, providing new insights into inbreeding, genetic lo....
onlinelibrary.wiley.com
December 4, 2025 at 8:31 PM
Reposted by Craig D. Wells
The value of structural variants to conservation genomics in the pangenome era
academic.oup.com/jhered/advan...
The value of structural variants to conservation genomics in the pangenome era
Abstract. Structural variants (SVs) comprise an axis of genetic diversity with strong consequences for phenotype and fitness, making them a potentially imp
academic.oup.com
November 28, 2025 at 9:08 AM
Reposted by Craig D. Wells
Ancestors of Fishers translocated decades ago into the Rockies in northern ID and MT persist! #consgen #fishers

academic.oup.com/jmammal/adva...
The genetic implications of translocations on Fisher (Pekania pennanti) populations in Montana and Idaho
Genetic structure of fishers in the US Northern Rocky Mountains is influenced by translocation history. Fishers in Northern Idaho and Montana are derived f
academic.oup.com
November 18, 2025 at 9:24 PM
Reposted by Craig D. Wells
De novo Genome Assemblies of Four Rainbow Trout Genetic Lines Reveal Structural Variants In Pursuit of a Pangenome Reference https://www.biorxiv.org/content/10.1101/2025.10.11.681701v1
October 14, 2025 at 3:33 AM
Reposted by Craig D. Wells
Neat job alert 🧬🐺🦌

Montana Fish Wildlife & Parks is hiring a wildlife conservation geneticist based in Missoula, MT. The position is joint with @umontana.bsky.social, working with Dr. Ryan Kovach on lots of neat wildlife #consgen projects. Reach out to Ryan with questions.
Wildlife Conservation Geneticist
Click the link provided to see the complete job description.
mtstatejobs.taleo.net
October 16, 2025 at 4:23 PM
Reposted by Craig D. Wells
Effects of deleterious mutations on the fixation of chromosomal inversions on autosomes and sex chromosomes https://www.biorxiv.org/content/10.1101/2025.10.10.681595v1
October 11, 2025 at 1:32 AM
Reposted by Craig D. Wells
If you’ve heard about our study on ants producing two different species but are still confused about how it works (and don’t have time to read the paper), this 10-minute video made by @bengthomas.bsky.social is very informative:
www.youtube.com/watch?v=Z-O4...

Paper: www.nature.com/articles/s41...
The Ants That Broke Biology
YouTube video by 7 Days of Science
www.youtube.com
September 15, 2025 at 4:04 PM
Reposted by Craig D. Wells
Legal battle reignites over Lower Snake River Dams, salmon
Legal battle reignites over Lower Snake River Dams, salmon
The Trump administration pulled back a landmark agreement over the operations of dams in the Columbia Basin. Now the legal fight has reignited.
www.seattletimes.com
September 12, 2025 at 1:30 AM
Reposted by Craig D. Wells
Size matters—but maybe not how we thought. Most chromosomal inversions are just a few hundred bp. Ignoring these “small players” could mean we’ve misunderstood how genomes evolve -out in TREE authors.elsevier.com/a/1ljL1cZ3X3...
September 5, 2025 at 9:11 AM
Reposted by Craig D. Wells
New paper with @birdpicsandscience.bsky.social out TODAY!!

We found that choosing "highly informative loci" (aka high fst loci) may bias results in common population genetic analyses

onlinelibrary.wiley.com/doi/10.1111/...

Explainer thread to come! #PopGen #PopulationGenomics #Evolution
‘Highly‐Informative’ Genetic Markers Can Bias Conclusions: Examples and General Solutions
High-grading bias is the overestimation power in a subset of loci caused by model overfitting. Using both empirical and simulated datasets, we show that high-grading bias can cause severe overestimat...
onlinelibrary.wiley.com
July 11, 2025 at 4:58 PM
Here are some beautiful examples of non-hybridized Redband Trout (O. mykiss gairdneri) from Montana. These fish are increasingly rare in Montana and are the state's only native Rainbow Trout (state rank: S1). FWP has recently spawned wild fish aiming to create a conservation hatchery broodstock.
May 29, 2025 at 4:59 AM
Grateful to be included as a minor co-author on this paper! The assemblies in this paper have been a great resource for other work in the pipeline
📢 NEW GENOME ALERT 

A chromosomal-level genome assembly and a genetic map of the west slope cutthroat trout published in #G3journal identifies specific chromosomal rearrangements, including fusions, fissions, and inversions, elucidating new genetic variation in the species.

buff.ly/IUlhh4R
May 25, 2025 at 9:57 PM
Reposted by Craig D. Wells
📢 NEW GENOME ALERT 

In #G3journal, Lecomte et al. produced a chromosome-level genome assembly of brook trout and performed a comparative analysis to identify homology with sister species lake trout and Atlantic salmon.

Read more: buff.ly/if3vgmp
April 25, 2025 at 8:02 PM
Reposted by Craig D. Wells
Scientists must push back against the threat of rising white nationalism and the dangerous and pseudoscientific ideas of eugenics

https://go.nature.com/4jGqiUc
Eugenics is on the rise again: human geneticists must take a stand
Scientists must push back against the threat of rising white nationalism and the dangerous and pseudoscientific ideas of eugenics.
go.nature.com
April 24, 2025 at 1:18 PM
Reposted by Craig D. Wells
The Greenland shark genome: insights into deep-sea ecology and lifespan extremes https://www.biorxiv.org/content/10.1101/2025.02.19.638963v1
February 23, 2025 at 12:35 AM
Reposted by Craig D. Wells
It started in Egypt, with the construction of the Aswan dams, and continued across the basin through verid actions. Now the Mediterranean is receiving less fresh water, and less nutrients - lowering primary productivity and disrupting coastal and marine ecosystems. 🧪🌊
www.nature.com/articles/s41...
February 5, 2025 at 7:04 AM
Reposted by Craig D. Wells
Hello world! Excited to kick things off on 🦋 with great news: The third chapter of my PhD, with @michaelmhansen.bsky.social and a bunch of other great people, has just been published 🚀. We explore genomic 👣 of hybridization between European and American eel. Check it out! doi.org/10.1111/mec....
Genomic Footprints of Hybridisation in North Atlantic Eels (Anguilla anguilla and A. rostrata)
Understanding interspecific introgressive hybridisation and the biological significance of introgressed variation remains an important goal in population genomics. European (Anguilla anguilla) and Am...
doi.org
January 31, 2025 at 10:46 AM
Reposted by Craig D. Wells
GREAT work by @craigdwells.bsky.social, Paul Spruell, et al. using genetics to evaluate the origins of migratory West Slope Cutthroat Trout sampled in the lower Pend Oreille basin. They found most fish assigned to populations above an impassable dam, which may be disrupting connectivity #ConsGen 🐟 🧬
AFS Publications
Impact statement Most Westslope Cutthroat Trout captured below Albeni Falls Dam were genetically assigned to regions upstream of the dam, indicating that this barrier disrupts their natural metapop...
afspubs.onlinelibrary.wiley.com
January 31, 2025 at 3:25 PM