Reconstruction of the strawberry, fragaria ×ananassa, using genotypes of F. virginiana and F. chiloensis
[ N/A ]
Tarih
2010
Dergi Başlığı
Dergi ISSN
Cilt Başlığı
Yayıncı
American Society for Horticultural Science
Erişim Hakkı
info:eu-repo/semantics/openAccess
Özet
The germplasm base of strawberries is restricted. The major cultivated strawberry species, Fragaria ×ananassa, originated ?250 years ago when South American F. chiloensis subsp. chiloensis forma chiloensis and North American F. virginiana subsp. virginiana accidentally hybridized in European gardens. Since that time, only a handful of native clones have been used by breeders. As a novel way to expand the germplasm base of the strawberry, we preselected native clones of F. virginiana and F. chiloensis for a wide range of horticulturally important characteristics and then reconstructed F. ×ananassa by crossing superior clones of each. Before crossing between species, we undertook one round of selection within species to maximize diversity. Reconstruction appeared to be an effective method of strawberry improvement, because superior families and individuals were identified that had outstanding vigor, high productivity, seed set, fruit color, and firmness. None of the fruit were of commercial size, but one reconstruction family, FVC 11 [(F. virginiana Frederick 9 × LH 50-4) × (F. chiloensis Scotts Creek × 2 MAR 1A)], had individuals with fruit weights of almost 20 g.
Açıklama
Anahtar Kelimeler
Cyclic flowering, Day-neutral, Germplasm resources, Short-day, Strawberry
Kaynak
HortScience
WoS Q Değeri
Scopus Q Değeri
Q2
Cilt
45
Sayı
7
