Pantranscriptome combined with phenotypic quantification reveals germplasm kinship and regulation network of bract color variation in Bougainvillea oleh Huaxing Huang, Huaxing Huang, Hongli Ji, Song Ju, Song Ju, Wei Lin, Jing Li, Jing Li, Xuanrui Lv, Xuanrui Lv, Lixian Lin, Lixian Lin, Lijin Guo, Dongliang Qiu, Jianyong Yan, Xiaokai Ma, Xiaokai Ma