We are still trying to identify the genetic change that causes Primary Hyperparathyroidism (PHPT) in the Keeshond. It is proving to be much more challenging than initially anticipated, which may explain, at least in part, why the original research was never completed and published.
As part of the original Give a Dog a Genome project, we used short-read based Whole Genome Sequencing (WGS) to sequence a PHPT case and an epilepsy case (as a PHPT control). We have sequenced a further case and a progressive retinal atrophy (PRA) case as a control, giving us two cases and two controls. These data have enabled us to independently identify the chromosome that harbours the causative genetic mutation for PHPT, however we have been unable to precise variant.
We have recently been awarded a small grant from CamVet to undertake long-read sequencing of the candidate region in an attempt to identify additional variants. Preliminary data suggests that the region of interest is highly structurally complex and very difficult to interrogate, but sequencing and data analysis is ongoing.
Alongside our current genetic investigations of 
In 2017, as part of the Give a Dog a Genome project, we sequenced the genome of an Old English Sheepdog (OES) that had been diagnosed with hereditary cataracts under the BVA/KC/ISDS Eye Scheme. This was the start of a project that turned out to be a lot more complex than we initially thought it would be, and that was disrupted by both covid and our move from the Animal Health Trust to the University of Cambridge, but that we finally concluded at the end of last year. 