Genetic diversity and population structure in the tomato-like nightshades Solanum lycopersicoides and S. sitiens.

ABSTRACT:

Background and aims

Two closely related, wild tomato-like nightshade species, Solanum lycopersicoides and Solanum sitiens, inhabit a small area within the Atacama Desert region of Peru and Chile. Each species possesses unique traits, including abiotic and biotic stress tolerances, and can be hybridized with cultivated tomato. Conservation and utilization of these tomato relatives would benefit from an understanding of genetic diversity and relationships within and between populations.

Methods

Levels of genetic diversity and population genetic structure were investigated by genotyping representative accessions of each species with a set of simple sequence repeat (SSR) and allozyme markers.

Key results

As expected for self-incompatible species, populations of S. lycoper

SUBMITTER: Albrecht E 

PROVIDER: S-EPMC2850793 | biostudies-literature | 2010 Apr

REPOSITORIES: biostudies-literature