Fruit Crop Diseases > Apple Proliferation

Breeding of apple proliferation resistant rootstocks

Objective is the development and breeding of resistant rootstocks using classical plant breeding. In this project, apple proliferation -resistant wild types (Malus sieboldii and Malus sieboldii derived hybrids) are crossed with agronomically interesting rootstock cultivars. Investigations at AlPlanta-IPR include the development of molecular markers for marker -assisted selection, the genetical analysis of natural resistance as well as resistance screening in vitro and in vivo. The in vitro grafting method, which has been recently established, is a highly efficient inoculation method which offers a rapid resistance screening. Using quantitative real- time PCR, a fast evaluation of the resistance of inoculated genotypes is possible. Real- time PCR is also adopted to study the differential gene expression in resistant versus susceptible genotypes or in infected plants versus healthy plants of the same genotype.


In vitro grafting


The following projects covered this subject: