Abstract
The 26 taxa of genus Spiraea (Rosaceae) in 14 Korean taxa and four taxa of them doubled in the world itself were collected and investigated phylogenetic relationships within these taxa using the chloroplast trnL-trnF region. Sequence variation within the genus Spiraea was mostly due to insertion/deletion. Total alignment sequence of trnL-trnF region in genus Spiraea was 1004 positions, of which 126 were parsimony-informative, 149 variable, 23 singleton, and 847 constant characters. The base furtherance did not show a significant difference among total taxa. Although many taxa of genus Spiraea were well separated each other, many branches were not congruent with the taxon positions with botanical names. In addition, sequences of the chloroplast trnL-trnF region for same species are different from each other according to authors. The taxonomic identification of genus Spiraea are in need of revision.
Highlights
Spiraea is a genus with 80 100 species of shrubs in the subfamily Spiraeoideae (Rosaceae) [1]
Aligned nucleotides of trnL-trnF were varied within Spiraea varying from 963 bp in S. cantoniensis to 975 bp Phylogenetic Relationships in the Genus Spiraea (Rosaceae) Inferred from the Chloroplast DNA Region, trnL-trnF 561
Aligned nucleotides of trnL-trnF were varied within Spiraea varying from 963 bp in S. cantoniensis to 975 bp in S. chinensis, S. japonica, and S. miyabei (Table 3)
Summary
Spiraea ( known as meadowsweet) is a genus with 80 100 species of shrubs in the subfamily Spiraeoideae (Rosaceae) [1]. They are native to the temperate Northern Hemisphere, with the greatest diversity in eastern Asia [2]. Among plant systematic and phylogeographic studies the chloroplast genome is widely used and generally accepted as an excellent source for molecular information [3,4]. Dramatic changes in gene content and structure only occurred after the chloroplast genome entered a eukaryotic cell via primary endocytobiosis [7], whereas land plant plastomes are highly conserved [8]
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