Staff Publications

Staff Publications

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    'Staff publications' is the digital repository of Wageningen University & Research

    'Staff publications' contains references to publications authored by Wageningen University staff from 1976 onward.

    Publications authored by the staff of the Research Institutes are available from 1995 onwards.

    Full text documents are added when available. The database is updated daily and currently holds about 240,000 items, of which 72,000 in open access.

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Record number 509089
Title Inheritance and QTL analysis of the determinants of flower color in tetraploid cut roses
Author(s) Gitonga, Virginia W.; Stolker, Robert; Koning-Boucoiran, Carole F.S.; Aelaei, Mitra; Visser, Richard G.F.; Maliepaard, Chris; Krens, Frans A.
Source Molecular Breeding 36 (2016)10. - ISSN 1380-3743
DOI http://dx.doi.org/10.1007/s11032-016-0565-9
Department(s) Laboratory of Plant Breeding
WUR Plant Breeding
PE&RC
EPS
PBR Kwantitatieve Aspecten
WUR PB Siergewassen, Tissue Culture
Publication type Refereed Article in a scientific journal
Publication year 2016
Keyword(s) Color determinants - Genetics - Inheritance - QTL analysis - Rosa × hybrida - Tetraploid rose
Abstract

The success of cut rose cultivars is a direct result of their aesthetic value. The rose industry thrives on novelty, and the production of novel flower color has been extensively studied. The most popular color is red, and it is, therefore, important for breeders to produce a good red cultivar. The final visible color of the flower is a combination of a number of factors including the type of anthocyanin accumulating, modifications to the anthocyanidin molecule, co-pigmentation and vacuolar pH. Here, we analyze the quantitative variation of the biochemical constituents of flower color in a tetraploid rose population and combine this with marker information in the segregating rose population to map the chromosomal locations of putative QTLs for flower color traits. Within our tetraploid population, we found a number of QTLs that were mapped on ICM 1, 2, 6 and 7. We were able to show the effect of the different QTLs on the final visible color of the flower from salmon to dark red.

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