Phenotypic and molecular characterization of selected tomato recombinant inbred lines derived from a cross Solanum lycopersicum x S. pimpinellifolium

PRATTA, GUILLERMO RAUL; RODRÍGUEZ, GUSTAVO RUBÉN; ZORZOLI, ROXANA; VALLE, ESTELA M; PICARDI, LILIANA AMELIA

JOURNAL OF GENETICS

INDIAN ACAD SCIENCES

Año: 2011 vol. 90 p. 229 - 237

0022-1333

An important trait defining fresh tomato marketability is fruit shelf life (SL). Exotic germplasm of S. pimpinellifolium is able to prolong SL, and sixteen recombinant inbred lines (RILs) with discrepant values of SL and fruit weight (W) were derived by antagonistic-divergent selection from an interspecific cross. The objective was to evaluate these RILs for many fruit quality traits such as diameter, height, size, acidity, colour, firmness, SL and W, and to characterize them by amplified fragment length polymorphism markers (AFLP). A wide range of genetic variability was found for most traits, and a wide range of molecular variation was also detected. Both set of data allowed to identify RILs by means of Cluster analysis and Principal Component analysis (PCA). Genetic association among some AFLP and fruit quality traits suggested by the PCA, could be identified by single point analysis. Potential molecular markers underlying agronomical traits were detected in these RILs.