Using SuperTRI Methods to Reconstruct the Phylogenetic Relationships of Liliales

Ropiquet et al.(2009) proposed a new approach called SuperTRI (SuperTree with Reliability Indices) to combine all phylogenetic information available for the construction of large,synthetic phylogenetic trees.This approach overcomes some limitations of Supermatrix analysis and Supertree analysis,and allows larger scale hypotheses to be more reliable and with stronger statistical power.In this paper,we applied SuperTRI to construct a liliales phylogenetic tree.Compared to those found with the supermatrix approach,the results indicated: (1) the topology of SuperTRI tree is similar to those of the Supermatrix tree,but gives lower branch support values relatively,where reproducibility index for judging node reliability is the easiest way to understand and also the most intuitive method shown by the phylogenetic tree; (2) our results confirmed that Liliaceae,Smilaceae,Philesiaceae and Ripogonaceae are one monophyletic clade,Melanthiaceae is another monophyletic clade,and Colchicaceae,Alstroemeriaceae and Petermanniaceae are another.However,the phylogenetic relationship between the three clades remains uncertain.Corsiaceae and Campynemataceae are a sister group and the first branch in the order.