Extended Data Fig. 2: The male fertility of GFP-tailswap is restored very early at low temperatures.

a, Alexander staining for the anthers of the first and the fifth flowers of GFP-tailswap (18 °C). Twice experiments independently were repeated with similar results. Scale bar, 100 μm. b, Representative image of the first and the fifth flower phenotypes of GFP-tailswap (18 °C). The filaments of the first flower cannot reach the stigma, but the filaments of the fifth flower can reach the stigma. Twice experiments were repeated independently with similar results. Scale bar, 1 mm.