GrTEdb: the first web-based database of transposable elements in cotton (Gossypium raimondii). - Zhenzhen Xu; Jing Liu; Wanchao Ni; Zhen Peng; Yue Guo; Wuwei Ye; Fang Huang; Xianggui Zhang; Peng Xu; Qi Guo; Xinlian Shen; Jianchang Du (Database J. Biol. Databases Curation, 2017)