Phylogenetic analysis of Cuban Pinguicula (Lentibulariaceae) based on internal transcribed spacer (ITS) region
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概要
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The internal transcribed spacer (ITS) region of 18S-26S nuclear ribosomal DNA (nrDNA) in seven species and one variety of <I>Pinguicula</I> (Lentibulariaceae) in Cuba has been sequenced. Although the eight taxa have been taxonomically divided into two subgenera such as Isoloba and Pinguicula with the other species grown in the other regions, and further they are divided into three sections such as Agnata, Discoradix and Homophyllum. The taxa of <I>Pinguicula</I> in Cuba formed a single clade, and it was not consistent with the current taxonomy based on morphology. Six taxa of <I>Pinguicula</I> in Cuba studied have been classified in section Agnata together with Mexican <I>Pinguicula agnata</I> and <I>P. ibarrae</I>, however, they were not ITS-phylogenetically, fully or partially supported by the data. Although the Cuban taxa of <I>Pinguicula</I> were quite different in morphology and life form from each other, they were ITS-phylogenetically close relatives to each other. The species of <I>Pinguicula</I> in Cuba were isolated phytogeographically and ITS-phylogenetically from those in the Southeastern United States and Mexico.
- 国際染色体植物学会の論文
国際染色体植物学会 | 論文
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