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Merry Christmas and a Happy New Year from PGL! Our laboratory is closed from 24th December and reopens on Monday 5th January 2026. All orders placed over the holidays will dispatch on the 5th.
Merry Christmas and a Happy New Year from PGL! Our laboratory is closed from 24th December and reopens on Monday 5th January 2026. All orders placed over the holidays will dispatch on the 5th.
Co - Locus (cocoa) - The Pet Genetics Lab

Co-Locus (cocoa)

Turnaround: approx. 2 weeks

£30.00 - £30.00
£30.00
£30.00
£30.00 - £30.00
£30.00

The Co-Locus is a region of your dog's DNA which controls a brown/chocolate coat colour present in French Bulldogs known as cocoa. The cocoa colouring generally tends to be darker than the chocolate produced by the B-locus though this can vary depending on the combination of other colour genes.

Your dog can only be cocoa if they are also E/E or E/e on the E-Locus. The Co-Locus behaves in a similar way to the B-locus meaning you can have solid cocoa colour as we all, for example, cocoa and tan.

The cocoa colour is controlled by mutations on the HPS3 gene.