title: Pericarp polypeptides and SRAP markers associated with fruit quality traits in an interspecific tomato backcross.
abstract: The aim of this study was to detect polypeptides and genomic regions associated with fruit quality traits in a backcross generation using as parent the Argentinean cultivated tomato Caimanta of Solanum lycopersicum and the wild accession LA722 of S. pimpinellifolium. We tested two types of molecular marker: polypeptide profile (at two ripening stages, mature green and red ripe) and SRAP (sequence-related amplified polymorphism). A polypeptide of 45 kDa present in the wild parents at the mature green stage was associated with larger fruit and long shelf life. Some amplification fragments from SRAP markers were associated with more than one quality trait such as fruit color, firmness, titratable acidity, and fruit soluble solids content. This study demonstrated for the first time the usefulness of the polypeptide profiles of pericarp and SRAP markers in finding associations with quality fruit traits in a tomato backcross generation.
authors.affiliation: Consejo Nacional de Investigaciones Científicas y Técnicas, Buenos Aires, Argentina jpereira@unr.edu.ar.
authors.forename: J H
authors.initials: JH
authors.lastname: Pereira da Costa
authors.affiliation: Consejo Nacional de Investigaciones Científicas y Técnicas, Buenos Aires, Argentina.
authors.forename: G R
authors.initials: GR
authors.lastname: Rodríguez
authors.affiliation: Consejo Nacional de Investigaciones Científicas y Técnicas, Buenos Aires, Argentina.
authors.forename: G R
authors.initials: GR
authors.lastname: Pratta
authors.affiliation: Cátedra de Genética, Facultad de Ciencias Agrarias, Universidad Nacional de Rosario, Zavalla, Santa Fe, Argentina.
authors.forename: L A
authors.initials: LA
authors.lastname: Picardi
authors.affiliation: Cátedra de Genética, Facultad de Ciencias Agrarias, Universidad Nacional de Rosario, Zavalla, Santa Fe, Argentina.
authors.forename: R
authors.initials: R
authors.lastname: Zorzoli
mesh_terms: D002874:Chromosome Mapping; D032461:Chromosomes, Plant / Q000235:genetics; D005638:Fruit / Q000235:genetics* / Q000254:growth & development; D014644:Genetic Variation; D006824:Hybridization, Genetic; D018551:Solanum lycopersicum / Q000235:genetics* / Q000254:growth & development; D010455:Peptides / Q000235:genetics* / Q000302:isolation & purification; D010641:Phenotype; D040641:Quantitative Trait Loci / Q000235:genetics
chemical_list: D010455:Peptides