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 549894
Title New Developments in Molecular Techniques for Breeding in Ornamentals
Author(s) Smulders, Marinus J.M.; Arens, Paul
Source In: Ornamental Crops / Van Huylenbroeck, Johan, Springer (Handbook of Plant Breeding ) - ISBN 9783319906973 - p. 213 - 230.
Department(s) Plant Breeding
PBR Ornamentals, tissue culture and gene transfer
Publication type Peer reviewed book chapter
Publication year 2018
Abstract In ornamental crops the development of genetic and molecular tools for breeding has been slow because of the large number of ornamental species, many of which are genetically complicated for breeding, being outbreeding crops, polyploid, and/or having a large genome.
This is changing due to three recent developments: (i) next-generation sequencing can now generate large numbers of single nucleotide polymorphism (SNP) markers based on genomic or transcriptomic sequences, (ii) efficient and automated SNP detection systems render genotyping into an automated and relatively cheap process, and (iii) methods and software now exist to analyse these data, also in polyploid crops, to find associations with traits and to generate tools for marker-assisted breeding. The challenge for the coming years will be to implement these tools to speed up breeding.
When more genome sequences of ornamental species or related species become available, it will also be possible to move from associated markers (for a trait or QTL region) to the underlying variation in the causal genes. Knowledge of the existing variation in functional alleles will make it possible to consider directing biosynthetic or regulatory pathways towards, e.g. different colour or scent combinations.
New plant breeding techniques (also called ‘precision breeding techniques’) add new possibilities to direct the breeding process. Notably, gene editing (also called genome editing) using Crispr/Cas may be used to increase the pool of functional variation, but there are challenges to apply it in ornamentals, in terms of the availability of sequence information for the candidate genes and the existence of transformation and regeneration protocols.
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