Fig. 9.

The expression pattern of BcNS in B. rapa. a The RT-PCR expression results of BcNS in a recessive sterile A/B line ‘Bajh97-01A/B’; b The RT-PCR expression results of BcNS in floral organs of a recessive sterile A/B line ‘Bajh97-01A/B’; c The relative expressional levels of BcNS in different organs of the flower; d Analysis of the expression pattern of BcNS using in situ hybridization, i: hybridization results with the antisense probe; ii, hybridization result with the sense probe. 1, 2, 3, 4, and 5 indicate stage I (< 1 mm), stage II (1.2 ~ 1.6 mm), stage III (1.8 ~ 2.2 mm), stage IV (2.4 ~ 2.8 mm), and stage V (3.0 ~ 3.4 mm) flower buds, A: fertile line, B: sterile line, F: open flowers, Si: germinal siliques, St: stems, L: leaves, Pe: petal, Se: sepal, St: stamen, Pi: pistil, and N: nectary