Figure 1.—

Restriction map of furrowed and location of the region sequenced in this study. R1–R42 are EcoRI restriction fragments described by Chen et al. (2000). The R1 fragment covers part of the 5′-untranslated region (UTR) and exons 1–9; R9/R42 covers exon 12, the 3′-UTR, and 3′ flanking region. A 5.1-kb region (1.2 kb of R1 and 3.9 kb of R9 and R42) corresponding to the 5.7-kb fw fragment of Chen et al. (2000)(−600 bp of 5′ sequence) was amplified in three separate PCR reactions and subjected to direct sequencing.