Very happy to share this exciting opportunity in quantitative genetics applied to organic breeding, in collaboration with Sidsel Schmidt from the Innovation Center for Organic Agriculture, Joanne Russel from James Hutton Institute, and Jan Svenson from NordGen. international.au.dk/about/profil...

Postdoctoral researcher in quantitative genetics applied to organic oat breeding - Vacancy at Aarhus University

Vacancy at Center for Quantitative Genetics and Genomics, Aarhus University

international.au.dk

Plant breeders are often reluctant to select purely on genomic predictions in rapid cycling generations. It's refreshing to see @kwsgroup.bsky.social now highlighting this as an important approach to accelerate breeding. There are challenges, but I'm convinced this is coming!

KWS Group@kwsgroup.bsky.social · 11mo ago

Today, it takes about 10 years on average for a new variety to reach the field - but this timeframe could be dramatically shortened in future 🌱⏱️ Learn about the tools and strategies that make this possible in our latest #KWSPortrait 👉 portrait.kws.com/edition-2025...

Presented on the frontiers of genomic prediction for #PlantBreeding at the 8th Cereal Biotennology and Breeding conference in Budapest, and got some traction on X!

Good point. Collecting the data often need many years, hours and $$$, it adds another irony to use a quick & dirty method for analysis. Machine learners are proud to spend thousands of hours HPC time for an analysis, biologist are proud if they can do an analysis in 30 secs on their laptop.

Hanbin Lee@epigenci.bsky.social · 11mo ago

Haseman-Elston regression is bit of an irony for massive biobanks because it throws away the statistical precision that was gained by accounting for more samples. You might be able to analyze more data, but you don't get more information out of it.

No, you will not triple yield by tripling the number of grains per spike 👇

KWS Group@kwsgroup.bsky.social · 12mo ago

🌾 Researchers at the @univofmaryland.bsky.social discovered a gene in wheat that affects flower development. This discovery could help plant breeders develop wheat with more grains per spike, thus increasing yield! agnr.umd.edu/news/scienti...

1/ If you're in bioinformatics, you're staring at matrices all day. RNA-seq? Gene x sample. scRNA-seq? Gene x cell. Everything is a matrix. But I never learned how to think in matrices. And I regret it.

Confused about vector resize() and reserve() in #C++? Resize modifies the size and fills default values; after resize'ing use [] to fill elements. Reserve only reserves memory in the background but size remains zero; after reserve use push_back to fill the vector. Don't confuse these two!

Somebody has fenced off and seems to claim chromosome X. Elon? 🤣

And another touch of geniality: he used observable Mendelian traits (colors on the seeds) as markers to map the quantitative trait, and understood it needs a cross to prove genetic linkage. It's gene mapping using biparental families in a rudimentary form.

Jeffrey Ross-Ibarra@jrossibarra.bsky.social · last yr.

This always blows my mind. Dude mapped qtl for a quantitative trait to a chromosome in 1923!

Teaching on additive, dominance, epistatic, transcriptomic, environmental (and more) relationship matrices, it occurs that the VanRaden GRMs are an exception with a sum(2pq) scaling, whereas all others are simply scaled to average diagonal 1. Can't we just scale all 'kernels' to mean diagonal 1?

Unraveling Mendel’s final mysteries: A genomic retelling of pea genetics: Cell www.cell.com/cell/fulltex...

Unraveling Mendel’s final mysteries: A genomic retelling of pea genetics

Using modern genomic tools, Feng et al. revisited Mendel’s seven pea traits in a recent Nature study, uncovering the molecular genetic basis of all of them, including the three unresolved ones: pod co...

cell.com

👇A very needed paper and discussion: genomic and phenomic prediction should not be compared, and suggesting that better phenotype prediction will improve breeding is misleading. Phenotypes include environment, but breeders don't sell environment (let that sink in 🤔🙂).

UCDavisPlants@ucdavisplants.bsky.social · last yr.

🌱 Accuracy stats alone can be misleading: phenomic vs. genomic prediction models require full breeder’s equation analysis to compare real-world value. (Fangyi Wang, Mitchell J Feldmann, Daniel E Runcie) ▶️ www.biorxiv.org/content/10.1... #PlantScience #PlantBreeding #genomics #phenomics

On the domestication of maize (aka corn) with @jrossibarra.bsky.social (a podcast) 👇

Kevin Folta@kevinfolta.bsky.social · last yr.

Talking Biotech 459 - where did the key domestication mutations in corn come from? Were they present in resident gene pools waiting to be selected, or new mutations? I discuss with @jrossibarra and his student Regina Fairbanks. @aspb @ASHS_Hort @UF_IFAS share.transistor.fm/s/bed2ffa6

Can recommend both the conference and the city 👇

Gregor Gorjanc@gregorgorjanc.bsky.social · last yr.

Please share: Registration is now open for EUCARPIA Biometrics in Plant Breeding 2025 highlanderlab.github.io/EUCARPIA2025...

We know GBLUP prediction accuracy gets worse for more distant generations (implying SNP effects changing!). In my teaching I explain it's long-range LD (from selection and family structure) breaking down. This nice article substantiates this more properly: doi.org/10.1186/s127...

Erosion of estimated genomic breeding values with generations is due to long distance associations between markers and QTL - Genetics Selection Evolution

Background Most validation studies of genomic evaluations on candidates (prior to observing phenotypes) present inflation of their predicted breeding values, i.e., regression coefficients of their lat...

doi.org

This professor position can fit any candidates working on genomic tools to address resilience, sustainability, climate adaptation or biodiversity in agriculture 👇

Remco Stam@rstam.bsky.social · 2y ago

Job Alert: Professor in Applied Genomics in Aarhus. Denmark tech.au.dk/om-fakultete...

Our summer course on #genomicPrediction with me and @guillramstein.bsky.social is running this year 4-8 August, application deadline 18 March. Info and registration see: international.au.dk/education/ad...

Interesting work on combining distantly related populations aka closely related species 👇

Gregor Gorjanc@gregorgorjanc.bsky.social · 2y ago

New pre-print: “Leveraging ancestral recombination graphs for quantitative genetic analysis of rice yield in indica and japonica subspecies” by Ines Rebollo, Jana Obsteter, Daniel Tolhurst, Juan Rosas, and me www.biorxiv.org/content/10.1...

From "X": New article out by Marta Malinowska et al., including a small gene mapping using our Bayesian mapping tools - soon to be released (keep watching bsky 😉): Automated seminal root angle measurement with corrective annotation 🌱 : doi.org/10.1093/aobp... #PlantBreeding #Automation #Phenotyping

Automated seminal root angle measurement with corrective annotation

Abstract. Measuring seminal root angle is an important aspect of root phenotyping, yet automated methods are lacking. We introduce SeminalRootAngle, a nove

doi.org