This paper develops PCR-based techniques for early in ovo sexing and genotyping of chicken embryos, improving efficiency and ethical standards in animal research.

Scientific Reports · Feb 21, 2026Peer-reviewedDevelopmental Biology

Genetic diversity in global chicken breeds as a function of genetic distance to the wild populations

Dorcus Kholofelo Malomane, Steffen Weigend, Armin Otto Schmitt, Annett Weigend, Christian Reimer, Henner Simianer

The paper examines the relationship between genetic diversity in domesticated chicken populations and their genetic distance to wild populations, finding a strong inverse correlation.

Genetics Selection Evolution · Apr 14, 2021Peer-reviewedGenetics

How Array Design Affects SNP Ascertainment Bias

Johannes Geibel, Christian Reimer, Steffen Weigend, Annett Weigend, Torsten Pook, Henner Simianer

The paper investigates how SNP array design affects ascertainment bias by redesigning a chicken SNP array and analyzing allele frequency spectra and heterozygosity estimates.

PLoS ONE · Mar 30, 2021Peer-reviewedGenomics

Improving imputation quality in BEAGLE for crop and livestock data

Torsten Pook, Manfred Mayer, Johannes Geibel, Steffen Weigend, D. Cavero, C.C. Schoen, Henner Simianer

The paper evaluates BEAGLE versions for imputation quality in crop and livestock data, finding that parameter tuning significantly improves imputation accuracy.

G3 Genes Genomes Genetics · Nov 2, 2019Peer-reviewedGenetics