Fine mapping of a locus presumably involved in hybrid inviability (HIs-1) between flowering cherry cultivar Cerasus × yedoensis 'Somei-yoshino' and its wild relative C. spachiana.

ABSTRACT: Flowering cherry is an extremely renowned ornamental tree, consisting of a variety of species and cultivars. Because cherry species have no strict barriers for interspecific hybridization before fertilization, identification of the gene underlying post-zygotic hybrid inviability will help breeders identify specimens for breeding and help us understand speciation mechanisms. In this study, we mapped the genetic linkages and physical genome sequences for a presumed hybrid inviability locus (HIs-1) that we observed in the seedlings crossed between Cerasus × yedoensis 'Somei-yoshino' and its wild relative C. spachiana. By the surveying linkage maps of 'Somei-yoshino' and C. spachiana, we identified correlation with seedling inviability only in linkage group 4 (LG4) of the 'Somei-yoshino' map.

SUBMITTER: Tsuruta M 

PROVIDER: S-EPMC6977440 | biostudies-literature | 2019 Dec

REPOSITORIES: biostudies-literature