Morphological, physiological and molecular genetic characterization ofArabidopsis himalaica, with reference toA. thaliana |
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| Authors: | Hirokazu Tsukaya Jun Yokoyama Hiroshi Ikeda Haruko Kuroiwa Tsuneyoshi Kuroiwa Kunio Iwatsuki |
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| Affiliation: | (1) Institute of Molecular and Cellular Biosciences, The University of Tokyo, 1-1-1 Yayoi, Bunkyo-ku, 113 Tokyo, Japan;(2) Botanical Gardens, The University of Tokyo, 3-7-1 Hakusan, Bunkyo-ku, 112 Tokyo, Japan;(3) Museum of Nature and Human Activities, 6 Yayoi-ga-oka, 669-13 Sanda-shi, Hyogo, Japan;(4) Kyoritsu Women's Junior College, 102 Tokyo, Japan;(5) Department of Biological Sciences, Graduate School of Science, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, 113 Tokyo, Japan;(6) Present address: Department of Ecology and Evolutionary Biology, Biological Institute, Graduate School of Science, Tohoku University, Aramaki, Aoba-ku, Sendai, 980-77 Miyagi, Japan;(7) Present address: Faculty of Science, Rikkyo University, 3-34-1 Nishi-ikebukuro, 171 Tokyo, Japan |
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| Abstract: | Arabidopsis himalaica (Edgeworth) O.E. Schulz, a poorly characterized species typical of HimalayanArabidopsis, was analyzed in terms of its morphology, physiology, chromosome number and molecular genetics, in comparison withA. thaliana which is the standard species in the genusArabidopsis. From view point of developmental genetics, several features which are specific toA. himalaica seem not to be derived by single-gene mutations inA. thaliana. Phylogenetic analyses based onrbcL sequences suggested that genusArabidopsis is not monophyletic. The detailed characterization ofA. himalaica should provide clues to understand the trait of evolution of particular features of Himalayan species ofArabidopsis and their genetic basis. |
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| Keywords: | Arabidopsis himalaica Chromosome number Himalaya Phylogenetic tree rbcL Size of genome |
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