Title

The genome of woodland strawberry (Fragaria vesca)

Abstract

The woodland strawberry, Fragaria vesca (2n = 2x = 14), is a versatile experimental plant system. This diminutive herbaceous perennial has a small genome (240 Mb), is amenable to genetic transformation and shares substantial sequence identity with the cultivated strawberry (Fragaria x ananassa) and other economically important rosaceous plants. Here we report the draft F. vesca genome, which was sequenced to x39 coverage using second-generation technology, assembled de novo and then anchored to the genetic linkage map into seven pseudochromosomes. This diploid strawberry sequence lacks the large genome duplications seen in other rosids. Gene prediction modeling identified 34,809 genes, with most being supported by transcriptome mapping. Genes critical to valuable horticultural traits including flavor, nutritional value and flowering time were identified. Macrosyntenic relationships between Fragaria and Prunus predict a hypothetical ancestral Rosaceae genome that had nine chromosomes. New phylogenetic analysis of 154 protein-coding genes suggests that assignment of Populus to Malvidae, rather than Fabidae, is warranted.

Publication Date

12-26-2010

Journal Title

Nature genetics

Publisher

Nature Publishing Group

Digital Object Identifier (DOI)

10.1038/ng.740

Scientific Contribution Number

NH00535

Document Type

Article

Rights

© 2011 Nature America, Inc.