Comparative Transcriptome Analysis Profiles of Two Mulberry Varieties under Cadmium Stress

This paper is try to investigate the molecular mechanisms of cadmium (Cd) response in mulberry (Morus albaL.) leaf. Transcriptome sequencing technology is used to analyze the profiles of low-Cd mulberry Zhehulusang (zhls) and high-Cd mulberry Xianmianzao (xmz) under Cd stress. Approximately 195 million clean reads were obtained, 2785 and 1211 differentially expressed genes (DEGs) were identified in zhls and xmz. The DEGs of zhls enriched in the pathway of flavonoid biosynthesis, photosynthesis, carbon fixation in photosynthetic organisms. The DEGs of xmz enriched in the pathway of flavonoid biosynthesis, plant-pathogen interaction, phenylpropanoid biosynthesis. Through comparative analyses, the flavonoids may be the effective antioxidants conserved in mulberry under Cd stress. These information may be useful for further studies on investigating the molecular mechanisms of mulberry response to Cd stress.