Myripnois is a monotypic shrub genus in the daisy family constricted to northern China.Although wild populations of Myripnois dioica are relatively rare,this plant may potentially be cultured as a fine ornamental.In t...Myripnois is a monotypic shrub genus in the daisy family constricted to northern China.Although wild populations of Myripnois dioica are relatively rare,this plant may potentially be cultured as a fine ornamental.In the present study,we sequenced the complete plastome of M.dioica,generating the first plastome sequences of the subfamily Pertyoideae.The plastome of M.dioica has a typical quadripartite circular structure.A large^20-kb and a small^3-kb inversion were detected in the large single copy(LSC)region and shared by other Asteraceae species.Plastome phylogenomic analyses based on 78 Asteraceae species and three outgroups revealed four groups,corresponding to four Asteraceae subfamilies:Asteroideae,Cichorioideae,Pertyoideae and Carduoideae.Among these four subfamilies,Pertyoideae is sister to Asteroideae+Cichorioideae;Carduoideae is the most basal clade.In addition,we characterized 13 simple sequence repeats(SSRs)that may be useful in future studies on population genetics.展开更多
基金supported by the Strategic Priority Research Program of Chinese Academy of Sciences (XDA20050203)the National Key R&D Program of China (2017YFC0505200)+1 种基金the Major Program of the National Natural Science Foundation of China (31590823)the National Natural Science Foundation of China (31570213)
文摘Myripnois is a monotypic shrub genus in the daisy family constricted to northern China.Although wild populations of Myripnois dioica are relatively rare,this plant may potentially be cultured as a fine ornamental.In the present study,we sequenced the complete plastome of M.dioica,generating the first plastome sequences of the subfamily Pertyoideae.The plastome of M.dioica has a typical quadripartite circular structure.A large^20-kb and a small^3-kb inversion were detected in the large single copy(LSC)region and shared by other Asteraceae species.Plastome phylogenomic analyses based on 78 Asteraceae species and three outgroups revealed four groups,corresponding to four Asteraceae subfamilies:Asteroideae,Cichorioideae,Pertyoideae and Carduoideae.Among these four subfamilies,Pertyoideae is sister to Asteroideae+Cichorioideae;Carduoideae is the most basal clade.In addition,we characterized 13 simple sequence repeats(SSRs)that may be useful in future studies on population genetics.
