Construction of a high-density linkage map and mapping quantitative trait loci for somatic embryogenesis using leaf petioles as explants in upland cotton (Gossypium hirsutum L.) - Zhenzhen Xu; Chaojun Zhang; Xiaoyang Ge; Ni Wang; Kehai Zhou; Xiaojie Yang; Zhixia Wu; Xueyan Zhang; Chuanliang Liu; Zuoren Yang; Changfeng Li; Kun Liu; et al. (Plant Cell Reports, 2015)