Quantitative trait loci (QTL) affecting sugars, organic acids and other biochemical properties possibly contributing to flavor, identified in four advanced backcross populations of tomato

Quantitative trait loci (QTL) affecting sugars, organic acids and other biochemical properties possibly contributing to flavor, identified in four advanced backcross populations of tomato

2002

A:PS

Although the advanced backcross strategy has proven very useful for quantitative trait loci (QTL) detection in tomato, it has been used mainly in identifying QTL for agronomic traits such as yield, colour, etc. Tomato flavour is an important quality characteristic, yet it has been difficult to assess flavour or traits that affect it. In this study the AB-QTL strategy was applied to four advanced backcross populations to identify QTL for biochemical properties that may contribute to the flavour of processed tomatoes, such as sugars and organic acids. A total of 222 QTL were identified for 15 traits, including flavour as assessed by a taste panel. Correlations of certain biochemicals with flavour and possible methods of assessing and improving flavour are discussed. In particular, QTL with very significant effects associated with the ratio of sugars/glutamic acid, a trait highly correlated with improved flavour, have been identified as good targets for future work in improving the flavour of tomatoes.

v.127(2):163-177, EUPHYTICA

Research > Published Articles