Autores UPV
Garcia-Mas J.,
benjak A,
Sanseverino W,
Bourgeois M,
MirG G,
gonzalez vm,
Henaff E,
camara f,
Blanca Postigo José Miguel,
Cañizares Sales Joaquín,
Ziarsolo Areitioaurtena Pello,
Nuez Viñals Fernando,
Picó Sirvent María Belén,
Pere Puigdomenech Rosell
Abstract
We report the genome sequence of melon, an important horticultural
crop worldwide. We assembled 375 Mb of the double-haploid
line DHL92, representing 83.3%of the estimatedmelon genome.We
predicted 27,427 protein-coding genes, which we analyzed by
reconstructing 22,218 phylogenetic trees, allowing mapping of the
orthology and paralogy relationships of sequenced plant genomes.
We observed the absence of recent whole-genome duplications in
the melon lineage since the ancient eudicot triplication, and our
data suggest that transposon amplification may in part explain the
increased size of the melon genome compared with the close
relative cucumber. A low number of nucleotide-binding siteleucinerich
repeat disease resistance genes were annotated, suggesting
the existence of specific defense mechanisms in this species. The
DHL92 genome was compared with that of its parental lines allowing
the quantification of sequence variability in the species. The use
of the genome sequence in future investigations will facilitate the
understanding of evolution of cucurbits and the improvement of
breeding strategies.
