SSR molecular markers linked to the fruit russet skin of pear.

Abstract

With the progenies produced from the cross Pyrus pyrifolia Nakai ‘Whangkeumbae’× Pyrus bretschneideri Rehd.‘Dangshansu’,the method of bulked segregant analysis(BSA) was used to identify molecular markers linked to the trait of fruit russet skin in pear.Two hundred and eighty one pairs of SSR primers derived from pear and apple genome were screened.Two SSR markers,CH01c06 and Hi20b03,which linked to russet skin of fruit at a distance of 4.8 cM and 12.0 cM,respectively,were obtained.This suggests that the gene which determines fruit russet skin be located on LG8 of the pear consensus genetic map.