... located upstream of pb-1 with a 613 bp interspace region in the same orientation (data not shown). Exon-intron analysis of pb-1 and pb-3 indicated that 13 of the 16 exons of the genes were similar ... pb-1 (49–68 bp) and pb-3 (47–64 bp), and the order of the types of introns in pb-1 was the same as in pb-3 (Table 3). From these results, the presence of some interesting variants, which were ... exons and 10 introns, with a length of 2871 bp, and pb-3 had 16 exons and 15 introns, with a length of 2595 bp. As shown in Table 3, the number, size and order of exons was the same in pb-1 and...