Fig. 2. Principal components analysis of annual wild Cicer collection site characteristics, based on climate, location, and altitude. Developmental phases defined as indicated in the Materials and Methods. Biplot vectors indicate strength and direction of factor loadings for PC1 and PC2. Symbols as follows: C. anatolicum (*), C. bijugum (•), C. chorassanicum (
), C. cuneatum (
), C. echinospermum (
), C. judaicum (
), C. pinnatifidum (
), C. reticulatum (
), C. yamashitae (+).