Identification of an insertion in MdPI of Rae Ime.
(A) Genomic DNA fragments were amplified from Spencer
Seedless (1), Wellington Bloomless (2), Rae Ime (3), Granny Smith (4),
and Royal Gala (5) by using primers P3 and P7. No DNA was amplified
from the control reaction without apple DNA as template (6).
(B) Arrows indicate insertion sites in
MdPI for Rae Ime (RI), Spencer Seedless (SS), and
Wellington Bloomless (WB). The numbers indicate nucleotide positions
starting from the ATG codon in the wild-type MdPI of
Granny Smith. Dark boxes are coding regions, and the white box is the
3′ noncoding region. Lines between the boxes represent introns.
(C) Five-base pair duplication (underlined) of
MdPI sequence was found in the insertion site for Rae
Ime.