Heteroploid reticulate evolution and taxonomic status of an endemic species with bicentric geographical distribution.

ABSTRACT: Reticulate evolution is considered to be among the main mechanisms of plant evolution, often leading to the establishment of new species. However, complex evolutionary scenarios result in a challenging definition of evolutionary and taxonomic units. In the present study, we aimed to examine the evolutionary origin and revise the species status of Campanula baumgartenii, a rare endemic species from the polyploid complex Campanula section Heterophylla. Morphometry, flow cytometric ploidy estimation, AFLPs, as well as chloroplast and nuclear DNA sequence markers were used to assess the morphological and genetic differentiation among C. baumgartenii, C. rotundifolia and other closely related taxa. Tetra- and hexaploid C. baumgartenii is morphologically and molecularly (AFLP) differentiated fro

SUBMITTER: Uwe Nierbauer K 

PROVIDER: S-EPMC5463600 | biostudies-literature | 2017 Jan

REPOSITORIES: biostudies-literature