Fig. 2. Fertility characteristics of new-typed B. napus. (a) A PMC with 19 bivalents from one of 38-chromosomed plant family, 1SH. (b) A PMC with univalents in one partial new-typed B. napus of 1SH family (arrow shows the univalent). (c) Developing siliques from another 38-chromosomed family, GXX, showing normal seed setting.