Fragaria iturupensis : Polyploidy Wikipedia, the free encyclopedia

Fragaria iturupensis

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Species of strawberry

Fragaria iturupensis

Scientific classification
Kingdom:	Plantae
Clade:	Tracheophytes
Clade:	Angiosperms
Clade:	Eudicots
Clade:	Rosids
Order:	Rosales
Family:	Rosaceae
Genus:	Fragaria
Species:	F. iturupensis
Binomial name
*Fragaria iturupensis* Staudt

Fragaria iturupensis, the Iturup strawberry, is a species of wild strawberry, endemic to Iturup in the Kuril Islands. It is noted to have relatively large berries for a wild species, similar in appearance to those of Fragaria virginiana. ^[1]^[2]

Polyploidy

All strawberries have a base haploid count of 7 chromosomes. Fragaria iturupensis was initially reported as octoploid (with 8 sets of chromosomes, 56 in total), but subsequent testing^[3] found decaploids (with ten sets of chromosomes, a total of 70). It is unclear whether the earlier report was an error, or whether two forms exist.^[3]

References

^ Hummer, K.E., Sabitov, A., & Davis, T. 2005. Iturup And Sakhalin Island Strawberries. HortScience 40(4): 1127. Abstract
^ "Fragaria iturupensis". Germplasm Resources Information Network. Agricultural Research Service, United States Department of Agriculture. Retrieved 2 January 2018.
^ ^a ^b Hummer, K.E.; Nathewet, P.; Yanagi, T. (2009). Decaploidy in Fragaria iturupensis (Rosaceae). American Journal of Botany. 96(3): 713–716.