Genetic diversity, structure and marker-trait associations in a collection of Italian tomato (Solanum lycopersicum L.) landraces

TAG. Theoretical and applied genetics. Theoretische und angewandte Genetik
Andrea MazzucatoFabio Veronesi

Abstract

The study of phenotypic and genetic diversity in landrace collections is important for germplasm conservation. In addition, the characterisation of very diversified materials with molecular markers offers a unique opportunity to define significant marker-trait associations of biological and agronomic interest. Here, 50 tomato landraces (mainly collected in central Italy), nine vintage and modern cultivars, and two wild outgroups were grown at two locations in central Italy and characterised for 15 morpho-physiological traits and 29 simple sequence repeat (SSR) loci. The markers were selected to include a group of loci in regions harbouring reported quantitative trait loci (QTLs) that affect fruit size and/or shape (Q-SSRs) and a group of markers that have not been mapped or shown to have a priori known linkage (NQ-SSRs). As revealed by univariate and multivariate analyses of morphological data, the landraces grouped according to vegetative and reproductive traits, with emphasis on fruit size, shape and final destination of the product. Compared to the low molecular polymorphism reported in tomato modern cultivars, our data reveal a high level of molecular diversity in landraces. Such diversity has allowed the inference of the e...Continue Reading

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Citations

May 22, 2009·TAG. Theoretical and applied genetics. Theoretische und angewandte Genetik·Weiwei WenLijun Luo
Mar 14, 2012·TAG. Theoretical and applied genetics. Theoretische und angewandte Genetik·Monica RodriguezGiovanna Attene
Oct 18, 2011·Genome Génome / Conseil National De Recherches Canada·Yi-Hong WangKarl H Hasenstein
Jun 12, 2012·Genome Génome / Conseil National De Recherches Canada·Hari D UpadhyayaSube Singh
Apr 20, 2014·Mediators of Inflammation·Assunta RaiolaAmalia Barone
Nov 6, 2012·TAG. Theoretical and applied genetics. Theoretische und angewandte Genetik·Jiaxin XuMathilde Causse
Dec 8, 2015·Frontiers in Plant Science·Jing ZhangZhirong Zou
Jun 1, 2016·Frontiers in Plant Science·Svetlana BaldinaAndrea Mazzucato
Sep 13, 2016·Frontiers in Plant Science·Jiantao ZhaoJing Zhang
Nov 18, 2017·DNA Research : an International Journal for Rapid Publication of Reports on Genes and Genomes·Valentina Tranchida-LombardoStefania Grillo
Jan 2, 2014·Biotechnology, Biotechnological Equipment·Elena TodorovskaZhivko Danailov
Jan 31, 2020·Frontiers in Plant Science·Miquel À ConesaJeroni Galmés
Oct 23, 2020·Critical Reviews in Food Science and Nutrition·Sanskriti VatsRupesh Deshmukh
Jul 3, 2021·Plants·Daniela MaroneGrazia M Borrelli

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