title: Identification of self-incompatibility-related glycoproteins in styles of apple (Malus x domestica).
abstract: In this study, stylar proteins of apple (Malus x domestica) which correlate with known intervarietal incompatibility relationships and have similar characteristics to the S-glycoproteins of Japanese pear (Pyrus serotina) were surveyed by two-dimensional gel electrophoresis (2D-PAGE). Varietal differences were detected in a group of glycoproteins having Mrs and pIs similar to those of the S-glycoproteins of Japanese pear. 2D-PAGE profiles of these glycoproteins were correlated with intervarietal incompatibility relationships. These glycoproteins reacted with antiserum raised against the S (4)-glycoprotein of Japanese pear, a result suggesting that they may be the products of S-alleles in styles of apple. On the basis of the profiles of the putative S-glycoproteins, S-genotypes were proposed for each of the apple cultivars examined.
authors.affiliation: Faculty of Horticulture, Chiba University, Matsudo, 271, Chiba, Japan.
authors.forename: H
authors.initials: H
authors.lastname: Sassa
authors.forename: N
authors.initials: N
authors.lastname: Mase
authors.forename: H
authors.initials: H
authors.lastname: Hirano
authors.forename: H
authors.initials: H
authors.lastname: Ikehashi