@ARTICLE{TreeBASE2Ref23727, author = {Sarah Silvia Bodin and JungSung Kim and Joo-Hwan Kim}, title = {Phylogenetic inferences and evolution of plastid DNA in Campynemataceae and the mycoheterotrophic Corsia dispar D.L Jones & B. Gray (Corsiaceae)}, year = {2015}, keywords = {Campynemataceae, Corsiaceae, Liliales, Corsia, mycoheterotrophs, molecular phylogeny}, doi = {}, url = {http://}, pmid = {}, journal = {Plant Molecular Biology Reporter}, volume = {}, number = {}, pages = {}, abstract = {The phylogenetic positions of the families Campynemataceae and Corsiaceae within the order Liliales remain unclear. To date, molecular data from the plastid genome of members in Corsiaceae have been obtained only from Arachnitis, which proved difficult in alignment and phylogenetic inference. The extent of gene conservation among mycoheterotrophic species within Corsiaceae has remained largely unknown. To clarify the phylogenetic position of Campynemataceae and Corsiaceae within Liliales, functional plastid-coding genes of species representing both families have been analyzed. Examination of two phylogenetic data sets of plastid genes employing parsimony, maximum-likelihood, and Bayesian inference methods strongly supported both families forming a sister clade to the remaining Liliales. The first data set consists of five functional plastid-encoded genes (matK, rps7, rps2, rps19, and rpl2) sequenced from Corsia dispar (Corsiaceae). The data set included 31 species representing all families within Liliales, as well as selected orders closely related to Liliales (10 outgroup species from Asparagales, Dioscoreales, and Pandanales). The second phylogenetic analysis was based on 75 plastid genes. This data set included 18 species from Liliales representing major clades within the order, and 10 outgroup species from Asparagales, Dioscoreales, and Pandanales. In this data set, Campynemataceae was represented by 60 plastid-encoded genes sequenced from herbarium material of Campynema lineare. A large proportion of the plastid genome of C. dispar [between the inverted-repeat and large single-copy regions] was also sequenced and compared to the plastid genomes of photosynthetic plants within Liliales and mycoheterotrophic plants within Asparagales to explore plastid genome reduction. The plastid genome of C. dispar is in the advanced stages of reduction, which signifies its high dependency on mycorrhizal fungi and is suggestive of a loss in photosynthetic ability. Functional plastid genes found in C. dispar may be applicable to other species in Corsiaceae, which will provide a basis for in-depth molecular analyses of interspecies relationships within the family once molecular data from other members become available. } }

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