QTL analysis for sugars and organic acids in strawberry fruitsShow others and affiliations
2006 (English)In: Proceedings of the Vth International Strawberry Symposium, INTERNATIONAL SOCIETY HORTICULTURAL SCIENCE , 2006, p. 573-577Conference paper, Published paper (Refereed)
Abstract [en]
Improving fruit quality is an important goal for strawberry breeders. Quantitative trait loci (QTL) for fruit quality of cultivated strawberry (Fragaria x ananassa Duch.) have been identified. A segregating population of 213 individuals of a cross between ‘Capitola’ and ‘CF1116’, two genotypes with many contrasting fruit quality traits, was used in the study. Eleven traits related to sugar and acid content were evaluated for all progeny and for both parents. These traits were quantified by enzymatic and metabolic profiling using one-dimensional H-1-NMR. Depending on the trait, measurements were taken over two or three years. Progeny showed a large range of variation for most of the traits. The strongest positive correlations were observed between fructose and glucose contents, and citrate and sum of organic acids. A total of 30 significant QTLs were detected by composite interval mapping (LOD superior to LODthreshold =2.88) and spread over eight female linkage groups and seven male linkage groups in coupling phase with a percentage of variation explained by a QTL ranging from 5.7 to 14.1%. Strong co-locations of putative QTLs for fructose and glucose were detected, while other QTLs were detected for sucrose.
Place, publisher, year, edition, pages
INTERNATIONAL SOCIETY HORTICULTURAL SCIENCE , 2006. p. 573-577
Series
ACTA HORTICULTURAE
Keywords [en]
linkage map; marker-assisted selection; polyploid; pseudo-testcross; quantitative trait loci; fruit quality traits
National Category
Genetics and Breeding in Agricultural Sciences
Identifiers
URN: urn:nbn:se:uu:diva-497886DOI: 10.17660/ActaHortic.2006.708.103OAI: oai:DiVA.org:uu-497886DiVA, id: diva2:1741424
Conference
5th International Strawberry Symposium, Coolum Beach, AUSTRALIA, SEP 05-10, 2004
Note
5th International Strawberry Symposium, Coolum Beach, AUSTRALIA, SEP 05-10, 2004
2023-03-052023-03-052023-03-05