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Phylogenetic analysis of <Emphasis Type="Italic">IRIS</Emphasis> L. from China on chloroplast <Emphasis Type="Italic">TRN</Emphasis>L-F sequences
Authors:Yu-Lin Jiang  Zhuo Huang  Jin-Qiu Liao  Hui-Xing Song  Xiao-Mei Luo  Su-Ping Gao  Ting Lei  Ming-Yan Jiang  Yin Jia  Qi-Bing Chen  Xiao-Fang Yu  Yong-Hong Zhou
Institution:1.College of Landscape Architecture,Sichuan Agricultural University,Wenjiang,China;2.Triticeae Research Institute,Sichuan Agricultural University,Wenjiang,China;3.College of Life Science,Sichuan Agricultural University,Ya’an,China;4.College of Forestry,Sichuan Agricultural University,Wenjiang,China
Abstract:Phylogenetic relationships among the six Iris subgenera were reconstructed by chloroplast trnL-F sequences data using maximum likelihood. The entire matrix of aligned bases analyzed includes 1043 characters and the length of all sequences varied from 747 bp to 893 bp, and mutation sites accounted for 18.79% of the total length. The cluster analysis results accorded well with the subgeneric classification of Chinese Iris species. Results suggested rhizomes and sepals lacking ornament are ancestral characters, and subg. Xyridion and subg. Limniris are more primordial than another four subgenera. Subgenus Nepalensis and subg. Xyridion were resolved as monophyletic.
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