The ORGAN SIZE (ORG) locus modulates both vegetative and reproductive gigantism in domesticated tomato.

ABSTRACT:

Background and aims

Gigantism is a key component of the domestication syndrome, a suite of traits that differentiates crops from their wild relatives. Allometric gigantism is strongly marked in horticultural crops, causing disproportionate increases in the size of edible parts such as stems, leaves or fruits. Tomato (Solanum lycopersicum) has attracted attention as a model for fruit gigantism, and many genes have been described controlling this trait. However, the genetic basis of a corresponding increase in size of vegetative organs contributing to isometric gigantism has remained relatively unexplored.

Methods

Here, we identified a 0.4-Mb region on chromosome 7 in introgression lines (ILs) from the wild species Solanum pennellii in two different tomato genetic backgrounds

SUBMITTER: Vicente MH 

PROVIDER: S-EPMC10902882 | biostudies-literature | 2023 Dec

REPOSITORIES: biostudies-literature