65 research outputs found
Genetic dissection of fruit quality traits in the octoploid cultivated strawberry highlights the role of homoeo-QTL in their control
Fruit quality traits are major breeding targets in the Rosaceae. Several of the major Rosaceae species are current or ancient polyploids. To dissect the inheritance of fruit quality traits in polyploid fleshy fruit species, we used a cultivated strawberry segregating population comprising a 213 full-sibling F1 progeny from a cross between the variety ‘Capitola’ and the genotype ‘CF1116’. We previously developed the most comprehensive strawberry linkage map, which displays seven homoeology groups (HG), including each four homoeology linkage groups (Genetics 179:2045–2060, 2008). The map was used to identify quantitative trait loci (QTL) for 19 fruit traits related to fruit development, texture, colour, anthocyanin, sugar and organic acid contents. Analyses were carried out over two or three successive years on field-grown plants. QTL were detected for all the analysed traits. Because strawberry is an octopolyploid species, QTL controlling a given trait and located at orthologous positions on different homoeologous linkage groups within one HG are considered as homoeo-QTL. We found that, for various traits, about one-fourth of QTL were putative homoeo-QTL and were localised on two linkage groups. Several homoeo-QTL could be detected the same year, suggesting that several copies of the gene underlying the QTL are functional. The detection of some other homoeo-QTL was year-dependent. Therefore, changes in allelic expression could take place in response to environmental changes. We believe that, in strawberry as in other polyploid fruit species, the mechanisms unravelled in the present study may play a crucial role in the variations of fruit quality
Influence of corn size distribution on the diastatic power of malted barley and its impact on other malt quality parameters
History of the Forty-sixth regiment Indiana volunteer infantry, September, 1861-September, 1865;
Compiled by Thos. H. Bringhurst and Frank Swigart.Mode of access: Internet
Effect of different steeping conditions on endosperm modification and quality of distilling malt
Influence of Corn Size Distribution on the Diastatic Power of Malted Barley and Its Impact on Other Malt Quality Parameters
Effect of germination temperatures on proteolysis of the gluten-free grains sorghum and millet during malting and mashing
Using a linkage mapping approach to identify QTL for day-neutrality in the octoploid strawberry
Isolation and characterization of two biologically active O-glycosylated forms of human parathyroid hormone produced in Saccharomyces cerevisiae. Identification of a new motif for O-glycosylation
Phase Change in Hedera helix: Induction of the Mature to Juvenile Phase Change by Gibberellin A3
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