Phylogeny of Cirsium spp. in North America: Host Specificity Does Not Follow Phylogeny.

ABSTRACT: Weedy invasive Cirsium spp. are widespread in temperate regions of North America and some of their biological control agents have attacked native Cirsium spp. A phylogenetic tree was developed from DNA sequences for the internal transcribed spacer and external transcribed spacer regions from native and non-native Great Plains Cirsium spp. and other thistles to determine if host specificity follows phylogeny. The monophyly of Cirsium spp. and Carduus within the tribe Cardinae was confirmed with native North American and European lineages of the Cirsium spp. examined. We did not detect interspecific hybridization between the introduced invasive and the native North American Cirsium spp. Selected host-biological control agent interactions were mapped onto the phylogenic tree derived by maximu

SUBMITTER: Slotta TA 

PROVIDER: S-EPMC4844267 | biostudies-literature | 2012 Oct

REPOSITORIES: biostudies-literature