Using General and Specific Combining Ability to Further Advance Strawberry (Fragaria Sp.) Breeding

Mathey, Megan M.; Mookerjee, Sonali; Mahoney, Lise L.; Finn, Chad E.; Hancock, J. F.; Serçe, Sedat; Davis, Tim D.; Stewart, Philip; Whitaker, Vance M.; Jamieson, Andrew; Bassil, Nahla V.; Amaya, Iraida; Denoyés-Rothan, B.; Hummer, Kim E.; Weg, Eric van de; Iezzoni, Amy

doi:10.17660/actahortic.2014.1049.19

Acta Hortic.

2014

DOI: 10.17660/actahortic.2014.1049.19

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Using General and Specific Combining Ability to Further Advance Strawberry (Fragaria Sp.) Breeding

Megan M. Mathey¹,

Sonali Mookerjee²,

Lise L. Mahoney³

et al.

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Cited by 3 publications

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“…The plants were set at a spacing of 0.9 m by 0.9 m between plants at both locations. These plants were part of a larger block that included 960 genotypes of wild selections of Fragaria virginiana and F. chiloensis, cultivars of F. × ananassa and other families of F. × ananassa[29].…”

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Heat tolerance plays an important role in regulating remontant flowering in an F1 population of octoploid strawberry (Fragaria×ananassa)

Mookerjee

Mathey

Finn

et al. 2013

Journal of Berry Research

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BACKGROUND: Flower initiation in strawberry is often classified by photoperiod sensitivity; however, temperature also plays a major role in determining flower initiation. OBJECTIVE: Our goal was to determine the role heat tolerance plays in regulating remontant flowering in a segregating population of strawberry, Fragaria×ananassa. METHODS: Non-remontant (short day)'Honeoye' and remontant 'Tribute' were crossed and 54 progeny were grown in three temperature regimes (17, 20, and 23 • C) under a long photoperiod in the greenhouse and differences in flower and runner formation among the progeny were compared. In addition, clonally replicated individuals of the same family were grown in the field in Michigan and Oregon, so that the extent of heat tolerance observed for each genotype in the greenhouse studies could be compared to their phenotype in the field (remontant vs. non-remontant). RESULTS: A significant Genotype x Environment interaction was observed in the greenhouse studies, indicating that there was a strong genetic component regulating the response of the individuals to increasing temperature. The level of heat tolerance, as defined as the difference in flower numbers at 23 • C vs. 17 • C,showed a continuous distribution among the progeny, indicating polygenic control. The majority of the genotypes that were remontant in the field produced more flowers at 23 • C than at 17 • C in the greenhouse trials. Flower initiation in both the parents was reduced at 23 • C, but 'Tribute' produced significantly more flowers than 'Honeoye' at 23 • C (48.0 vs. 11.3). Most remontant progeny had few runners, although there were some notable exceptions. CONCLUSIONS: Temperature tolerance plays an important role in the flower and runner initiation of remontant genotypes. Genotypes with high heat tolerance can be selected that will more dependably flower in environments with highly variable levels of summer heat.

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Heat tolerance plays an important role in regulating remontant flowering in an F1 population of octoploid strawberry (Fragaria×ananassa)

Mookerjee

Mathey

Finn

et al. 2013

Journal of Berry Research

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Validation of molecular markers associated with perpetual flowering in Octoploid Fragaria germplasm

Salinas

Zurn

Mathey³

et al. 2017

Mol Breeding

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Effects of strawberry parent genotypes winter hardiness on yield and fruit size inheritance

Shokaeva¹

2021

Acta Hortic.

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Using General and Specific Combining Ability to Further Advance Strawberry (Fragaria Sp.) Breeding

Cited by 3 publications

References 0 publications

Heat tolerance plays an important role in regulating remontant flowering in an F1 population of octoploid strawberry (Fragaria×ananassa)

Heat tolerance plays an important role in regulating remontant flowering in an F1 population of octoploid strawberry (Fragaria×ananassa)

Validation of molecular markers associated with perpetual flowering in Octoploid Fragaria germplasm

Effects of strawberry parent genotypes winter hardiness on yield and fruit size inheritance

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