被子植物隐性雌雄异株性系统的多样性、系统演化及进化意义

何花, 谭敦炎, 杨晓琛

Cryptic dioecy in angiosperms: Diversity, phylogeny and evolutionary significance

Hua He, Dunyan Tan, Xiaochen Yang

图3 被子植物隐性雌雄异株可能的主要进化途径。(a)经雄花两性花同株进化为隐性雌雄异株性表达类型I; (b)由二型花柱直接进化为隐性雌雄异株性表达类型II; (c)由雌花两性花异株直接进化为隐性雌雄异株性表达类型III; (d)由雌雄异株直接进化为隐性雌雄异株性表达类型I。花及其性别用浅灰色圆圈表示。

Fig. 3 Evolutionary pathways to cryptic dioecy in angiosperms. (a) Cryptic dioecy sex expression type I evolved via andromonoecy; (b) Cryptic dioecy sex expression type II evolved directly from distyly; (c) Cryptic dioecy sex expression type III evolved directly from gynodioecy; (d) Cryptic dioecy sex expression type Ⅰ evolved directly from dioecy. Flowers and their gender are depicted as light grey circles.