Data from: The Solanum commersonii genome sequence provides insights into adaptation to stress conditions and genome evolution of wild potato relatives

Here, we report the draft genome sequence of Solanum commersonii, which
consists of ∼830 megabases with an N50 of 44,303 bp anchored to 12
chromosomes, using the potato (Solanum tuberosum) genome sequence as a
reference. Compared with potato, S. commersonii shows a striking reduction
in heterozygosity (1.5% versus 53 to 59%), and differences in genome sizes
were mainly due to variations in intergenic sequence length. Gene
annotation by ab initio prediction supported by RNA-seq data produced a
catalog of 1703 predicted microRNAs, 18,882 long noncoding RNAs of which
20% are shown to target cold-responsive genes, and 39,290 protein-coding
genes with a significant repertoire of nonredundant nucleotide binding
site-encoding genes and 126 cold-related genes that are lacking in S.
tuberosum. Phylogenetic analyses indicate that domesticated potato and S.
commersonii lineages diverged ∼2.3 million years ago. Three duplication
periods corresponding to genome enrichment for particular gene families
related to response to salt stress, water transport, growth, and defense
response were discovered. The draft genome sequence of S. commersonii
substantially increases our understanding of the domesticated germplasm,
facilitating translation of acquired knowledge into advances in crop
stability in light of global climate and environmental changes.