图1. 使用广义相加模型(GAM)拟合脆枝青藓、大灰藓和长叶提灯藓的净光合同化速率(P_n)、蒸腾速率(T_r)、非结构性碳水化合物和核心生物钟基因及节律调控相关基因昼夜节律。A、B中灰色部分对应于15 d正常光周期的最后一个夜晚。横坐标上的黑色和白色分别代表植物自然条件下的夜晚和白天, 灰色部分代表植物自然条件下黑暗但给予光照。C-I中灰色部分表示全光照条件下第二天(LL2d)外界条件下的夜晚。D-I分别为脆枝青藓生物钟调控相关基因的表达量。CDF1, CYCLING DOF FACTOR1; CKB, CASEIN KINASE II BETA CHAIN; CO, Constans; PAP1, PRODUCTION OF ANTHOCYANIN PIGMENT 1; PRR7, PSEUDO RESPONSE REGULATOR 7; PRR9, PSEUDO RESPONSE REGULATOR。

Fig. 1. Circadian rhythms of core circadian clock genes and rhythm regulation-related genes fitted to photosynthetic assimilation rate (P_n), transpiration rate (T_r), and non-structural carbon (NSC) in Brachythecium thraustum、Hypnum plumaeforme and Mnium lycopodioides using generalized additive model (GAM). The gray part in A and B corresponds to the last night of the 15 d normal photoperiod. The black and white parts on the horizontal coordinates represent the night and daytime of the plant under natural conditions, respectively, while the gray part represents the darkness of the plant under natural conditions but given light. The gray part in C-I represents the night under full light conditions on the second day (LL2d) under external conditions. D-I represent expression of clock-regulated genes in the moss Ceratodon purpureus. CDF1, CYCLING DOF FACTOR1; CKB, CASEIN KINASE II BETA CHAIN; CO, Constans; PAP1, PRODUCTION OF ANTHOCYANIN PIGMENT 1; PRR7, PSEUDO RESPONSE REGULATOR 7; PRR9, PSEUDO RESPONSE REGULATOR.