6Bird C R, Smith C J S, Ray J A, Moureau P, Bevan M W, Bird A S, Hughes S, Morris P C, Grierson D, Schuch W. 1988. The tomato polygalacturonase gene and ripening-specific expression in transgenic plants. Plant Molecular Biology, 11 : 651 - 662.
7Costa F, Peace C P, Stella S, Serra S, Musacchi S, Bazzani M, Sansavini S, Weg W E. 2010. QTL dynamics for fruit firmness and softening around an ethylane-depandent polygalacturonase gane in apple (Malus x domestica Borkh. ) . Journal of Experimental Botany, 61 (11): 3029 - 3039.
8Degan F D, Child R,'Svendsen I, Ulvskov P. 2001. The cleavable N-terminal domain of plant endopolygalacturonases from clade B may be involved in a regulated secretion mechanism. The Journal of Biological Chemistry, 276 (38): 35297 - 35304.
9Dettori M T, Quarta R, Verde I. 2001. A peach linkage map integrating RFLPs, SSRs, RAPDs, and morphological markers. Genome, 44: 783 - 790.
10Dirlewanger E, Graziano E, Joobeur T, Garriga-Caldere F, Cosson P, Howad W, Pere A. 2004. Comparative mapping and marker-assisted selection in Rosaceae fruit crops. Proceedings of the national academy of sciences of the United States of America, 101 (26): 9891 - 9896.