Fig. 2From: Genetic characteristics and ploidy trigger the high inducibility of double haploid (DH) inducer in Brassica napusObservation of meiosis behavior. a-d Meiosis behavior of Y3560. e-h Meiosis behavior of 3560–1. i-l Meiosis behavior of T195. The arrow in the figure points to a lagging or extranuclear chromosome. The red five-pointed star is marked as defective empty spores. Scale bar: 10 μmBack to article page