The James Hutton Institute, and its predecessor the Scottish Crop Research Institute (SCRI), have had blackcurrant breeding programmes since the 1960s.

BBC: Blackcurrants

The James Hutton Institute said both were "valued and respected colleagues".

BBC: Dr Stewart Rhind and Dr Julian Dawson

Dr Stewart Rhind, who was 61, and Dr Julian Dawson, who was 42, both worked for the Aberdeen-based research centre The James Hutton institute.

BBC: Dr Stewart Rhind and Dr Julian Dawson