Chris Gottschalk
@pomics.bsky.social
Pome fruit 🍎 🍐 breeder and geneticist 🧬 Award winning cider maker and contemporary artist. Opinions my own.
New environmental stress physiology research at the USDA-ARS Appalachian Fruit Research Station suggests distinct survival strategy conveyance by selected Apple rootstock cultivars (B.10, B.9, G.11, G.935, G.969) grafted to `Honeycrisp` scion! https://doi.org/10.21273/JASHS05526-25 #horticulture
Gene annotation remains a huge bottleneck in genomics but @pomics.bsky.social & Meg Staton's group at Tennessee have put together an awesome fast and accurate pipeline! Thrilled to have contributed to this awesome team effort. Check out the preprint here 👇 www.biorxiv.org/content/10.1...
Ragnarok: a flexible and RApid GeNe Annotation (ROcKs) pipeline deployed through Nextflow
Motivation High-quality genome assemblies and pangenomes are increasingly accessible and achievable due to advances in third-generation sequencing and assembly algorithms, but genome annotation remain...
biorxiv.org
I still have many of these historic Mich US #pears lines in my collection. Unfortunately 504 is not one of them.
old fruit pictures@pomological.xor.blue · last yr.michigan u.s. 504 pears, painted by l. c. c. krieger, 1936
michigan u.s. 504 pears, painted by l. c. c. krieger, 1936
Development of Rosaceae Crop-Specific Nanopore Models for Community Use Through the Genome Database for Rosaceae https://www.biorxiv.org/content/10.1101/2025.06.23.660393v1
A wild collected, possible F1 or F2 progeny in our wild #apple germplasm collection have exhibited flowering in just their third year! Other apple also exhibited short juvenile periods but this one is a big windfall for our #prebreeding program specifically. I even got it to set controlled crosses.
The crossing seasons been busy this year! Lots of successful crosses in our pre-breeding #apple program! Some of these crosses represent our fourth, fifth or later generations of our decade old program! Cheers to wide crosses and breaking down the interrelatedness that’s rampant in apple cultivars!
What was classified as a potential #rootstock turns outs to have great fruit quality. Stems are too long but hey you can’t always win the #genetic lottery #pears #plantbreeding
Some cool fungal genomics work I participated in www.mdpi.com/2309-608X/11...
Omics-Based Comparison of Fungal Virulence Genes, Biosynthetic Gene Clusters, and Small Molecules in Penicillium expansum and Penicillium chrysogenum
Penicillium expansum is a ubiquitous pathogenic fungus that causes blue mold decay of apple fruit postharvest, and another member of the genus, Penicillium chrysogenum, is a well-studied saprophyte va...
mdpi.com
The ARS in Corvallis, OR is looking for a new horticulturist/geneticist to work on the tree and nut crops at their location. As the site of the pear germplasm, you'd get work with me! The pear breeding program relies heavily on the curatorial efforts from this location. www.usajobs.gov/job/824903300
Horticulturist/Geneticist (Plants)
This position is located with USDA, ARS, Pacific West Area (PWA), National Clonal Germplasm Repository (NCGR) in Corvallis, OR and will be the Curator of the National Plant Germplasm System (NPGS) col...
usajobs.gov
Big ol’ fan of this variety and its synonym ‘Kyle’s Sugar’. It maybe small but it packs a sugary punch!
old fruit pictures@pomological.xor.blue · 2y agotyson pears, painted by mary daisy arnold
Out in the Pacific Northwest, home to one of my favorite wild #apples - #Malusfusca! Having spent more than a decade working with fusca and its hybrids, it was really fun to co-lead the effort to resolve the first North American wild apple species #genome with @bmansfeld.bsky.social.
lowland raspberry apples, painted by royal charles steadman, 1927
Still one of my most favorite traits to find in #pome fruit #redflesh #redfleshedapple #redfleshedpear #otterson #apple #pear #cider #rosé
First post on #bluesky figured I’d share our most advanced #pear selection! #plantbreeding #pome #fruit
