Key points are not available for this paper at this time.
James Rodman, Robert A. Price, Kenneth Karol, Elena Conti, Kenneth J. Systma, Jeffrey D. Palmer, Nucleotide Sequences of the rbcL Gene Indicate Monophyly of Mustard Oil Plants, Annals of the Missouri Botanical Garden, Vol. 80, No. 3 (1993), pp. 686-699
Rodman et al. (Fri,) studied this question.