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Imprint
Investigations on the genetic mechanisms of flower development in apple
Project
Project code: JKI-ZGO-08-4205
Contract period: 01.08.2017
- 31.07.2020
Purpose of research: Applied research
The currently changing climatic conditions are already impacting on flower and fruit development of our fruit tree species. For breeding new cultivars in the future, which will less react to these climatic changes, the genetic mechanisms of flower development in apple will investigated in detail. Therefore, the expression of already known flowering genes will be studied in different genotypes and under different environmental conditions. Different alleles of genes whose expression differed significantly between the different genotypes will be identified and functionally characterized. For this, transgenic approaches will be used. For several flowering genes transgenic plants were already established, which will now be evaluated at the phenotypic and genotypic level in more detail. The final goal is to establish a first genetic model for flower development on apple which includes all processes from flower induction, flower initiation, flower organ development, bud dormancy and dormancy release to bud break and blooming time. In the frame of the present project the apple homologs of the flowering genes TERMINAL FLOWER1 (TFL1), CONSTANS (CO) and SUPPRESSOR OF OVEREXPRESSION OF CONSTANS1 (SOC1) and the dormancy associated MADS box gene MdDAM4 will be deeply characterized.
Section overview
Subjects
- Plant Breeding
- Arboriculture
Framework programme
Funding programme
Excutive institution
Institute for Breeding Research on Horticultural Crops (JKI-ZG)
