Related Experiment Video
Updated: Feb 1, 2026

Embryo Rescue Protocol for Interspecific Hybridization in Squash
Published on: September 12, 2022
Zooming in on a quantitative trait for tomato yield using interspecific introgressions
Eyal Fridman1, Fernando Carrari, Yong-Sheng Liu
1Robert H. Smith Institute of Plant Sciences and Genetics in Agriculture, Faculty of Agriculture, Hebrew University of Jerusalem, Post Office Box 12, Rehovot 76100, Israel.
Abstract:
To explore natural biodiversity we developed and examined introgression lines (ILs) containing chromosome segments of wild species (Solanum pennellii) in the background of the cultivated tomato (S. lycopersicum). We identified Brix9-2-5, which is a S. pennellii quantitative trait locus (QTL) that increases sugar yield of tomatoes and was mapped within a flower- and fruit-specific invertase (LIN5). QTL analysis representing five different tomato species delimited the functional polymorphism of Brix9-2-5 to an amino acid near the catalytic site of the invertase crystal, affecting enzyme kinetics and fruit sink strength. These results underline the power of diverse ILs for high-resolution perspectives on complex phenotypes.
Related Concept Videos
Trait and State Self-Esteem
Polygenic Traits
ATP Yield
The ETC is embedded in the inner mitochondrial membrane and is comprised of four main protein complexes and an ATP synthase. NADH and FADH2 pass electrons to these complexes, which pump protons into the intermembrane space. This distribution of...
Multiple Allele Traits
Reaction Yield
Traits and States

