Population structure and phylogenetic relationships in a diverse panel of Brassica rapa L.

4. Chinese cabbage (ssp. pekinensis) and 5. bok choy, choy sum and tatsoi (ssp. chinensis, ssp ... Kevin A Bird, Hong An, Elodie Gazave, Michael A Gore, J Chris Pires, Larry D Robertson, Joanne A Labate ...

http://journal.frontiersin.org/Journal/10.3389/fpls.2017.00321/abstract