Fig. 1. Genomic organisation of her1 and her7 and cis regulatory regions identified in transgenic lines. The organisation and the exon-intron structure of her1 and her7 are shown on the top. Exons are indicated as black boxes. The arrows indicate the direction of transcription. her1 consists of 4 exons and her7 has 3 exons. The extent of the promoter-reporter gene constructs is shown below. Construct sizes: I, 8.6 kb; II, 3.3 kb; III, 2.8 kb; VI, 2.3 kb; V, 0.8 kb; VI, 0.3 kb.