Analysis of wild-species introgressions in tomato inbreds uncovers ancestral origins.

ABSTRACT:

Background

Decades of intensive tomato breeding using wild-species germplasm have resulted in the genomes of domesticated germplasm (Solanum lycopersicum) being intertwined with introgressions from their wild relatives. Comparative analysis of genomes among cultivated tomatoes and wild species that have contributed genetic variation can help identify desirable genes, such as those conferring disease resistance. The ability to identify introgression position, borders, and contents can reveal ancestral origins and facilitate harnessing of wild variation in crop breeding.

Results

Here we present the whole-genome sequences of two tomato inbreds, Gh13 and BTI-87, both carrying the begomovirus resistance locus Ty-3 introgressed from wild tomato species. Introgressions of different

SUBMITTER: Menda N 

PROVIDER: S-EPMC4219026 | biostudies-literature | 2014 Oct

REPOSITORIES: biostudies-literature