Asymmetric epigenome maps of subgenomes reveal imbalanced transcription and distinct evolutionary trends in Brassica napus

Qing Zhang, Pengpeng Guan, Lun Zhao, Meng Ma, Liang Xie, Yue Li, Ruiqin Zheng, Weizhi Ouyang, Shunyao Wang, Hongmeijuan Li, Ying Zhang, Yong Peng, Zhilin Cao, Wei Zhang, Qin Xiao, Yuanling Xiao, Tingdong Fu, Guoliang Li, Xingwang Li, Jinxiong Shen