Abstract
Arabidopsis thaliana have a large number of accessions, including standard laboratory strains such as Col-0 and Ler. These natural variants exhibit genetic diversity in morphology, flowering time and stress tolerance. We found some kinds of abnormal seedlings which show pale green or cup-shaped cotyledons in F2 population from a Col-0 X other accession. These phenotypes never appear in both parents and these progenies, meaning that these phenotypes appear in only plants which possessed a pair of homozygous genes of Col-0 and the accession, respectively. If we map the each locus contributed for the abnormal morphology in Col-0 and accession, we could reveal a pair of genes that show redundancy or interact each other. In this study, we introduce the abnormal phenotypes which appear in F2 population from Col-0 X other accession and the mapping loci for pale green in Col-0 and the accession genome, respectively as a novel genetic approach.
