Fig. 9.

Association between promoter structure and transcription of CitRDK1 in 10 representative citrus varieties. The illustration (a) indicates the PCR amplification region of CitRDK1 in genotyping PCR (b) and RT-PCR (c). RT-PCR was conducted using young whole fruit at DAF30. The genotypes of CitRKD1 alleles are shown by the combinations of M (monoembryonic allele) and P (polyembryonic allele). 1: clementine mandarin, 2: ‘Kiyomi’, 3: Mato buntan pumelo, 4: hyuga-natsu, 5: ‘Nishinokaori’ tangor, 6: satsuma mandarin, 7: ‘Harumi’, 8: ‘Valencia’ sweet orange, 9: ponkan mandarin, 10: ‘Saga’ mandarin