The genome of the stress-tolerant wild tomato species Solanum pennellii

A. Bolger, F. Scossa, M.E. Bolger, S.A. Aflitos, E.G.W.M. Schijlen, R.C.H.J. van Ham, R.M. Klein Lankhorst

Research output: Contribution to journalArticleAcademicpeer-review

188 Citations (Scopus)

Abstract

Solanum pennellii is a wild tomato species endemic to Andean regions in South America, where it has evolved to thrive in arid habitats. Because of its extreme stress tolerance and unusual morphology, it is an important donor of germplasm for the cultivated tomato Solanum lycopersicum(1). Introgression lines (ILs) in which large genomic regions of S. lycopersicum are replaced with the corresponding segments from S. pennellii can show remarkably superior agronomic performance(2). Here we describe a high-quality genome assembly of the parents of the IL population. By anchoring the S. pennellii genome to the genetic map, we define candidate genes for stress tolerance and provide evidence that transposable elements had a role in the evolution of these traits. Our work paves a path toward further tomato improvement and for deciphering the mechanisms underlying the myriad other agronomic traits that can be improved with S. pennellii germplasm.
Original languageEnglish
Pages (from-to)1034-1038
JournalNature Genetics
Volume46
Issue number9
DOIs
Publication statusPublished - 2014

Keywords

  • introgression lines
  • gene-expression
  • fruit
  • qtl
  • accumulation
  • evolution
  • trichomes
  • responses
  • plants
  • traits

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