Brassica oleracea
Please refer to the following paper for the origin of this line: Federico Luis Iniguez-Luy, Lewis Lukens, Mark W. Farnham, Richard M. Amasino, Thomas C. Osborn. Development of public immortal mapping populations,  molecular markers and linkage maps for rapid cycling  Brassica rapa and B. oleracea. Theor Appl Genet (2009) 120:31–43