Strawberry Genes and Genomics

Multiple Models for Rosaceae Genomics

“…Currently, 23 species are recognized in the genus Fragaria, including 13 diploids (2n 5 2x 5 14), four tetraploids, one hexaploid, and four octoploids (Folta and Davis, 2006). Accessions of the cultivars' two octoploid progenitor species, Fragaria chiloensis and Fragaria virginiana, are valued by strawberry breeders as sources of novel traits, especially pest resistance and abiotic stress tolerance.…”

Metabolite profiling reveals novel multi-level cold responses in the diploid model Fragaria vesca (woodland strawberry)

“…However, one might expect differing cold acclimation and freezing tolerance strategies, when studying different plant organs, and compare annual and perennial species. In view of the apparent limitations of biological information gained from studies in the model species Arabidopsis thalian, a need for new plant models has been postulated (Folta and Davis, 2006). In order to intensify breeding approaches in the cultivated octoploid strawberry, the diploid woodland strawberry Fragaria vesca L. has been introduced as an attractive model due to its small genome, plant size, vegetative and seed propagation, but also for its prolific fruit and seed production (Shulaev et al, 2008), and its draft genome has recently been published (Shulaev et al, 2011).…”

Karyotype Analysis in Octoploid and Decaploid Wild Strawberries in Fragaria (Rosaceae)

“…Fragaria vesca and F. iinumae are likely as genome donors in allopolyploidisation process of the octoploid strawberries (Potter et al 2000, Folta and Davis 2006, Davis et al 2009, RousseauGueutin et al 2009). Iwatsubo and Naruhashi (1989) and Naruhashi et al (1999) had already exhibited the karyotypes of F. daltoniana, F. hayatai, F. iinumae, F. nipponica, F. nubicola and F. vesca.…”