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BMC Plant Biology BioMed Central Research article Open Access Whos who in two different flower types of Calluna vulgaris (Ericaceae): morphological and molecular analyses of flower organ identity 1 2 3 1 Thomas Borchert , Katrin Eckardt , Jörg Fuchs , Katja Krüger and Annette Hohe* 1 Address: 1Institute of Vegetable and Ornamental Crops (IGZ), Department Plant Propagation, Kuehnhaeuser Str 101, 99189 Erfurt, Germany, 2University of Applied Sciences Dresden, Faculty for Agriculture and Landscape Management, Pillnitzer Platz 2, 01326 Dresden, Germany and 3Leibniz-Institute of Plant Genetics and Crop Plant Research (IPK), Department of Cytogenetics and Genome Analysis, Corrensstrasse 3, 06466 Gatersleben, Germany Email: Thomas Borchert - borchert@erfurt.igzev.de; Katrin Eckardt - katrin.eckardt@; Jörg Fuchs - fuchs@ipk-gatersleben.de; Katja Krüger - k.krueger@erfurt.igzev.de; Annette Hohe* - hohe@erfurt.igzev.de * Corresponding author Published: 14 December 2009 Received: 26 May 2009 Accepted: 14 December 2009 BMC Plant Biology 2009, 9:148 doi:10.1186/1471-2229-9-148 This article is available from: /1471-2229/9/148 © 2009 Borchert et al; licensee BioMed Central Ltd. This is an Open Access article distributed under the terms of the Creative Commons Attribution License (/licenses/by/2.0), which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. Abstract Background: The ornamental crop Cal