ITS 염기서열에 의한 한국산 붓꽃속 ( Iris ) 의 계통학적 연구 |
심정기, 박홍덕, 박선주 |
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Phylogenetic study of Korean Iris ( Iridaceae ) based on nrDNA ITS sequences |
Jeong Ki Sim, Hong Duok Park, Seon Joo Park |
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Abstract |
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Sequences of ITS of nuclear ribosomal DNA were compared for 19 taxa of Korean Iris including subgenera Sisyrinchium and Belamcanda were compared. In the phylogenetic analyses using parsimony and neighbour-joining methods including bootstrapping and jackknifing analyses, Korean Iris was divided into three subgenera (Limniris, Crossiris, Pardanthopsis), or two genera (Limniris, Pardanthopsis) and one subgenus (Limniris). The molecular data agree with the previous classification system that recognized two sections and six series for the subgenus Limniris because the subgenus comprised seven clade in the ITS trees. According to molecular data, series Chinense should be divided into two groups, and the minutoaurea group composed of I. koreana, I. odaesanensis, and I. minutoaurea, and the rossii group comprising appears I. rossii, I. rossii. var. alba, and I. rossii var. latifolia. Series Tripetalae to be closely allied with series Sibiricae, and series Ensatae is placed as a sister group to series Ruthenicae. The molecular phylogeny based on ITS sequences mostly agreed with ones proposed by previous authors on the basis of morphological data, suggesting the phylogenetic analysis of ITS sequences should be very useful to address phylogenetic questions on the genus Iris. |
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