Intersectional Hybrids between Darrow’s Blueberry (V. darrowii Camp) and Lingonberry (V. vitis-idaea L.)

Autor: Mark K. Ehlenfeldt, Nahla Bassil, Ryan King, Juan Zalapa, Fernando de la Torre, James L. Luteyn
Jazyk: angličtina
Rok vydání: 2024
Předmět:
Zdroj: Plants, Vol 13, Iss 11, p 1572 (2024)
Druh dokumentu: article
ISSN: 2223-7747
DOI: 10.3390/plants13111572
Popis: An initial cross of V. darrowii ‘Johnblue’ (Darrow’s blueberry) × V. vitis-idaea ‘Red Sunset’ (lingonberry) produced more than 30 true intersectional diploid hybrids as confirmed by molecular markers. The most vigorous of these hybrids was extensively evaluated. This hybrid, US 2535-A, was floriferous and morphologically intermediate to the respective parents. Examination of pollen suggested low male fertility. Numerous crosses using the hybrid as a female reflected similarly low fertility and potential crossing barriers. Stylar examination suggested blockage of pollen tube growth in self-pollinations and significantly retarded growth in backcross pollinations. Nonetheless, two confirmed hybrid offspring were produced using the F1 hybrid as a female in crosses with V. vitis-idaea and V. darrowii, respectively. In a second set of crosses utilizing additional V. darrowii and V. vitis-idaea genotypes, another 23 verified hybrids in seven parental combinations were produced. Hybrids such as the ones presented offer the potential for generating de novo interspecific fruit types in blueberry and/or broadening the adaptation of lingonberry.
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