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Variation for fruit shape morphology and candidate genes in eggplant materials

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HAL Id: hal-02748085

https://hal.inrae.fr/hal-02748085

Submitted on 3 Jun 2020

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Variation for fruit shape morphology and candidate genes in eggplant materials

M. Hurtado, M. Plazas, P. Gramazio, S. Vilanova, Marie-Christine Daunay, E.

van der Knaap, J. Prohens

To cite this version:

M. Hurtado, M. Plazas, P. Gramazio, S. Vilanova, Marie-Christine Daunay, et al.. Variation for fruit shape morphology and candidate genes in eggplant materials. 15. Eucarpia Meeting on Genetics and Breeding of Capsicum and Eggplant, Sep 2013, Torino, Italy. 2013, Breakthroughs in the geneties and breeding of capsicum and eggplant. �hal-02748085�

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Breakthroughs in the Geneties and Breeding of

Capsieum and Eggplant

Torino, 2-4 September 2013

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EDITORS Sergio Lanteri

Giuseppe Leonardo Rotino

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XV EUCARPIA Meeting on Genetics and Breeding of Capsicum and Eggplant

Variation for fruit shape morphology and candidate genes in eggplant materials

Hurtado M.I, Plazas M.I, Gramazio P.I, Vilanova S.I,Daunay M.C.2, van der Knaap E?, Prohens J.I 'Instituto de Conservaci6n y Mejora de la Agrodiversidad Valenciana, Universitat Politècnica de València, Camino de Vera 14,46022Yalencia, Spain

2fNRA, Unité de Génétique et d'Amélioration des Fruits et Legumes, Montfavet, France

3Department of Horticulture &Crop Science, Ohio Agricultural Research and Development Center, The Ohio State University, Wooster, OH 44691, USA

Abstract

Cultivated eggplant (Salanum melangena) presents a wide phenotypic diversity for fruit morphology. New technologies have improved the quantity and quality of data that can be obtained for the morphological characterization of fruit traits. ln this respect, the free software Tomato Analyzer allows the accu rate and objective measurement of fruit shape and size of eggplant fruits.

Tomato Analyzer characterization coupled with molecular characterization of candidate genes for fruit shape can be useful for elucidating the genetic control of fruit shape in eggplant, as weil as for marker assisted selection. We crossed two eggplants with different fruit shapes: semi-round (Cristal) and long (Feng Yuang Purple) and obtained the F2 generation. A wide variability in fruit shape, which was characterized with Tomato Analyzer, was observed in the 53 individuals of the F2. These results, together from those of the F2 of another cross between a long and slender eggplant accession (MM 1597) and a flat and fasciated accession (A0416) suggest that several genes affecting fruit shape are segregating in these populations. Conversely, a number of key genes have been described as responsible for controlling fruit shape in Solanaceae fruits. Among them, genes SUNand OVATE control fruit elongation in tomato fruits. ln this respect, we are evaluating the allelic diversity of these genes in the Cristal and Feng Yuang Purple parentals. This will help us to develop molecular markers ofthe different genes and evaluate the potential role of the alleles in the control offruit shape ineggplant. Also, other progenies developed by [NRA which include different fruit shapes will be used for identifying possible allelic diversity of these genes within S.

melangena. These materials may be useful for the identification of fruit shape QTLs and genes otherthan SUN and OVATE. These studies will help us to shed light on the genetics offruit shape in eggplant as weil as to identify the loci involved in creating the large and variably shaped fruit characteristic ofthe eggplant germplasm.

Keywords: OVATE gene, Solanum melongena, SUNgene, Tomato Analyzer.

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