Zhang Zhonglin, Zhang Jingyu, Li Zhinu, Su Ning, Song Yanru, Shen Guifang. Cloning of homologous targeting sequences containing chloroplast genes, rbcL and atpB, of Brassica napus and the construction of plastid transformation vectors harboring key enzyme genes responsible for PHB biosynthesis. Acta Physiol Sin 2001; 53 (3): (in Chinese with English abstract).