Lotus Japonicus
, Miyakojima MG-20 and Gifu B-129. The genome sizes of Miyakojima and Gifu were determined as 472.1 and 442.8 Mbp, respectively. Both the accessions were diploid (2n=12) and six chromosomes were identified and characterized based on the condensation patterns and the locations of rDNA loci. The obvious polymorphism observed in the genome size and the chromosome morphology between the two accessions, revealed specific accumulation of heterochromatin in Miyakojima or elimination in Gifu. The chromosomes L. japonicus were numbered according to their length. A quantitative chromosome map was also developed by the imaging methods using the digital data of the condensation pattern. 45S rDNA loci were localized on chromosomes A and F, and 5S rDNA locus was localized on chromosome A by fluorescence in situ hybridization (FISH). Identification of the chromosome and genome sizes and development of the quantitative chromosome map represent significant contribution to the L. japonicus genome project as the basic information.
Similar content being viewed by others
Author information
Authors and Affiliations
Additional information
Received 29 August 2000/ Accepted in revised form 17 October 2000
Rights and permissions
About this article
Cite this article
Ito, M., Miyamoto, J., Mori, Y. et al. Genome and Chromosome Dimensions of Lotus japonicus . J Plant Res 113, 435–442 (2000). https://doi.org/10.1007/PL00013952
Issue Date:
DOI: https://doi.org/10.1007/PL00013952