Simplified gene network regulating flowering time in Sapria himalayana. Lost homologous genes in the S. himalayana genome are highlighted in red, and host-derived mRNAs, which expressed in bracts of S. himalayana, are indicated in purple. The gene network of regulating flowering time was summarized in Arabidopsis thaliana. The grey box represented the expression of any of the three genes (SOC1, AGL24, and LFY) could promote flowering. Blue stacked arrow represent the transfer path from host to S. himalayana. Yellow solid circles represent fruits of Tetrastigma, brown bark-like frame on the left and top side resembles the vine of Tetrastigma, and the below portion represents the roots of Tetrastigma, where S. himalayana parasites on it.
