Robust markers associated with floral traits in roses are suitable for marker-assisted selection across gene pools

authored by

Dietmar Schulz, Marcus Linde, Thomas Debener

Abstract

We investigated the potential of markers associated with floral traits for parental selection in a cut rose breeding program. We analysed six Kompetitive Allele Specific PCR (KASP) markers for three important floral traits, petal length, petal number and scent, derived from experiments in a garden rose population. The six markers were applied to genotype a collection of 384 parental genotypes used for commercial cut rose breeding. We phenotyped a selection of progeny derived from pairs of parents having either high or low dosages of (contrasting) marker alleles associated with these traits. Significant differences were found between the contrasting progeny groups for each of the traits, although parents with the optimal allele dosage combinations could not always be used for the crosses. This not only supports the robustness of these marker‒trait associations but also demonstrates their potential for commercial rose breeding. It also demonstrates the use of marker information generated in garden rose populations for cut rose breeding.

Organisation(s)

Institute of Plant Genetics

External Organisation(s)

Bundesamt für Verbraucherschutz und Lebensmittelsicherheit (BVL)

Type

Article

Journal

Molecular breeding

Volume

43

ISSN

1380-3743

Publication date

08.12.2023

Publication status

Published

Peer reviewed

Yes

ASJC Scopus subject areas

Biotechnology, Molecular Biology, Genetics, Agronomy and Crop Science, Plant Science

Electronic version(s)

https://doi.org/10.1007/s11032-023-01438-5 (Access: Open)