%0 Journal Article
%T Introgressive Hybrids of <i>Arisaema sikokianum</i> and <i>A. tosaense</i> (Araceae) Confirmed through Nuclear and Chloroplast DNA Comparisons
%A Hiroshi Hayakawa
%A Hidenori Hamachi
%A Kanako Matsuyama
%A Yuko Muramatsu
%A Yukio Minamiya
%A Katsura Ito
%A Jun Yokoyama
%A Tatsuya Fukuda
%J American Journal of Plant Sciences
%P 303-307
%@ 2158-2750
%D 2011
%I Scientific Research Publishing
%R 10.4236/ajps.2011.23034
%X Morphologically putative introgressive hybrids of <i>Arisaema sikokianum</i> Franch. et Sav. and <i>A. tosaense</i> Makino were newly found in Kochi and Tokushima Prefectures in Japan. All the individuals have the same morphological characteristics as <i>A. tosaense</i> excluding a purple spathe. Molecular analysis using PCR-RFLP of internal transcribed spacer (ITS) in nuclear DNA (nrDNA) indicates that these putative introgressive hybrids have the same pattern as <i>A. tosaense</i>. Moreover, the sequences of chloroplast DNA (cpDNA) of the putative introgressive hybrids were identical to <i>A. sikokianum</i> from Kochi Prefecture and <i>A. tosaense</i> from Tokushima Prefecture. The results suggest that the plants are introgressive hybrids of <i>A. sikokianum</i> and <i>A. tosaense</i> and that they have highly exchanged genes with <i>A. tosaense</i>.
%K Araceae
%K Arisaema
%K A. sikokianum
%K A. tosaense
%K Chloroplast Capture
%K Introgression
%K ITS
%K Molecular  Analysis
%K PCR-RFLP
%K Trn
%U http://www.scirp.org/journal/PaperInformation.aspx?PaperID=7574