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Genetic Diversity in Diploid Cultivars of Rhodesgrass Determined on the Basis of Amplified Fragment Length Polymorphism Markers

^a Department of Crop Science, Faculty of Agriculture, University of Calabar, P.M.B. 1115-Calabar, Nigeria
^b Federal Research Station for Agroecology and Agriculture, FAL-Reckenholz, 8046 Zurich, Switzerland
^c Department of Plant Breeding, National Grassland Research Institute, Nishinasuno, Tochigi 329-2793, Japan

View larger version (17K): [in a new window]   Fig. 1. UPGMA clustering of 13 rhodesgrass cultivars based on coancestry coefficients (Reynolds et al., 1983) derived from 237 AFLP markers and 15 individual plants per populations. Letters in parentheses refer to the geographic origin of the cultivars (A = Africa, J = Japan; Table 1).

View larger version (24K): [in a new window]   Fig. 2. Principle coordinate analysis of 195 rhodesgrass plants from 13 cultivars based on Euclidean distance derived from 237 AFLP markers.

View larger version (21K): [in a new window]   Fig. 3. Canonical discriminant analysis of 195 rhodesgrass plants from 13 cultivars based on 84 AFLP markers which differentiated best among the 13 cultivars as determined by stepwise discriminant analysis. White, gray, and black symbols mark plants from clusters I, II, and III, respectively (Fig. 2).