ARS | Publication request: Identification of markers closely linked to the peach "pillar" gene

Submitted to: Plant and Animal Genome Conference
Publication Type: Abstract Only
Publication Acceptance Date: January 10, 2007
Publication Date: January 13, 2007
Citation: Sajer, O., Scorza, R., Abbott, A., Horn, R. 2007. Identification of markers closely linked to the peach "pillar" gene [abstract]. Plant and Animal Genome Conference. p. 219.

Technical Abstract: In peach [Prunus persica (L.) Batsch], trees showing columnar (also termed "pillar" or "broomy") growth habit are of interest of high density production systems. However, in early breeding stages, the selection by this phenotype is very difficult, as the trait is recessively inherited and heterozygotes show an intermediate phenotype when young. Application of marker-assisted selection would be very helpful to establish a more efficient breeding system. AFLP and SSR marker techniques were applied in bulked segregant analyses using bulks of pillar and standard growth phenotype. Polymorphic primer combinations were mapped in the F2-population consisting of 92 individuals. AFLP markers were identified that are closely linked to the "pillar" gene and will be converted into STS-markers for easier handling in a marker-assisted breeding program.