8Booi S ,Van Dyk M M, Du Preez M G,et al. Molecular typing of red and green phenotypes of ' Bon Rouge ' pear tree ,with the use of microsatellites[J]. Acta Hort. 2005,671:293- 296.
9Cheng F S, Weeden N F, Brown S K. Identification of co-dominant RAPD markers tightly linked to fruit skin color in apple [J]. Theor. Appl. Genet,1996,93:222-227.
10Kim D,Hwang J H. Development of molecular markers linked to several fruit traits in oriental pear [C]. Acta Horticulturue ,2005,671:315-321.