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Table 1 Analysis of male development in di- and polyploid Ranunculus gametes during sporogenesis. Mean percentages of normal and abnormal sporogenesis were determined by orcein staining and bright field microscopy

From: The relation of meiotic behaviour to hybridity, polyploidy and apomixis in the Ranunculus auricomus complex (Ranunculaceae)

Taxa Ploidy Plant ID n (normal, abnormal) normal sporogenesis (range) abnormal sporogenesis (range)
Parent species
R. notabilis 2x 10137, 9609 923 (916, 7) 0.99 (0.50–0.99) 0.02 (0.01–0.50)
R. carpaticola 2x 8483, LH040 369 (365, 4) 0.97 (0.94–0.99) 0.03 (0.01–0.05)
R. cassubicifolius 4x LH008 324 (314, 10) 0.97 (0.96–0.98) 0.03 (0.02–0.04)
Synthetic F1 Hybrids
R. carpaticola * R. notabilis 2x J, F 3154 (3123, 31) 0.99 (0.99–1.00) 0.01 (0.00–0.01)
R. cassubicifolius * R. notabilis 3x G 645 (615, 30) 0.89 (0.79–0.99) 0.11 (0.11–0.21)
Synthetic F2 Hybrids
R. car. * R. not. * R. car. * R. not. 2x F x F, F x J, J x F, J x J 3653 (3587, 66) 0.98 (0.95–1.00) 0.03 (0.00–0.17)
R. cas. * R. not. * R. cas. * R. not. 3x, 4x G x G 211 (181, 30) 0.86 (0.76–0.95) 0.14 (0.05–0.24)
Natural Hybrids
R. notabilis * R. variabilis (?) 4x 10136 1001 (914, 87) 0.82 (0.50–0.99) 0.18 (0.01–0.50)
 Diploid Samples    8099 (7991, 108) 0.98 (0.83–1.00) 0.02 (0.00–0.17)
 Polyploid Samples    2181 (2024, 157) 0.87 (0.50–0.99) 0.13 (0.01–0.50)
 Total    10,280 (10,015, 265) 94.58% 5.42%