Jy. Zheng et al., FLUORESCENT BANDING-PATTERN ANALYSIS OF 8 TAXA OF PHASEOLUS AND VIGNAIN RELATION TO THEIR PHYLOGENETIC-RELATIONSHIPS, Theoretical and Applied Genetics, 87(1-2), 1993, pp. 38-43
Phylogenetic relationships among eight taxa of seven species of Phaseo
lus and Vigna (Phaseolus angularis, P. aureus, P. calcaratus, P. cocci
neus, P. vulgaris, Vigna sesquipedalis and V sinensis; 2n = 22 each) w
ere studied by the fluorescent chromosome banding technique. Preparati
ons of somatic metaphase chromosomes of each taxon were sequentially s
tained with Giemsa, GC-specific fluorochrome chromomycin A3 (CMA) and
AT-specific fluorochrome 4'-6-diamidino-2-phenylindole (DAPI). On the
basis of the fluorescent banding patterns of the 22 chromosomes of eac
h taxon, P. angularis, P. coccineus (from China and Korea) and P. vulg
aris were grouped into one group (''Phaseolus group''), P. aureus and
two Vigna species were grouped into another ('' Vigna group'') and P.
calcaratus was grouped in an independent group.