| Affiliation: | (1) Graduate School of Science and Technology, Chiba University, Chiba 263–8522, Japan,;(2) Department of Multi-Disciplinary Sciences, Graduate School of Arts and Sciences, The University of Tokyo, Tokyo 153–8902, Japan,;(3) Department of Biology, Faculty of Science, Chiba University, Chiba 263–8522, Japan,;(4) , National Institute for Basic Biology, Okazaki 444–8585, Japan, |
| Abstract: | Recent progress in plant molecular genetics has revealed that floral organ development is regulated by several homeotic selector genes, most of which belong to the MADS-box gene family. Here we report on SrMADS1, a MIKCc-type MADS-box gene from Selaginella, a spikemoss belonging to the lycophytes. SrMADS1 phylogenetically forms a monophyletic clade with genes of the LAMB2 group, which are MIKCc genes of the clubmoss Lycopodium, and is expressed in whole sporophytic tissues except roots and rhizophores. Our results and the previous report on Lycopodium MIKCc genes suggest that the ancestral MIKCc gene of primitive dichotomous plants in the early Devonian was involved in the development of basic sporophytic tissues such as shoot, stem, and sporangium. Electronic Publication |
