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Identification of Four New Est-Based Markers on the Apple (MALUS ⋉ DOMESTICA) Genetic Map Cover

Identification of Four New Est-Based Markers on the Apple (MALUS ⋉ DOMESTICA) Genetic Map

Open Access
|Sep 2014

Abstract

The map of the linkage groups: LG2, LG12 and LG14, which are expected to contain QTLs related to fruit quality, was generated by analysis of 56 individuals of the cross: ‘Retina’ × ‘Topaz’. Twenty three of the 27 SSR markers covered 225 cM in ‘Retina’ and 371 cM in ‘Topaz’ genome. High level of colinearity (≈85%) was found between obtained map and the respective map regions of ‘Fiesta’, ‘Discovery’, ‘Ralls Janet’ and ‘Delicious’. Only single inversions of marker positions were noted, predominantly in ‘Topaz’. CAPS and SSCP/SNP markers in seven ESTs, chosen based on the metabolic pathways of ascorbic acids and sugar, were identified. Four of the CAPS markers, linked to the genes coding: UDP glucose: flavonoid 3-o-glucosyl transferase, ascorbate peroxidase, and two sugar transporters, were mapped on LG2 (GFglTra - both cultivars), LG12 (PGiso1B and PSTS - ‘Topaz’) and LG14 (PST - ‘Retina’). According to our knowledge, loci of these markers have never been identified on the apple genome map.

DOI: https://doi.org/10.2478/johr-2014-0011 | Journal eISSN: 2353-3978 | Journal ISSN: 2300-5009
Language: English
Page range: 93 - 100
Submitted on: Dec 2, 2013
Accepted on: May 30, 2014
Published on: Sep 10, 2014
Published by: National Institute of Horticultural Research
In partnership with: Paradigm Publishing Services
Publication frequency: 2 issues per year

© 2014 Sylwia Keller-Przybyłkowicz, Małgorzata Korbin, published by National Institute of Horticultural Research
This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 3.0 License.