Evolutionary transcriptomics reveals the origins of olives and the genomic changes associated with their domestication.

ABSTRACT: The olive (Olea europaea L. subsp. europaea) is one of the oldest and most socio-economically important cultivated perennial crop in the Mediterranean region. Yet, its origins are still under debate and the genetic bases of the phenotypic changes associated with its domestication are unknown. We generated RNA-sequencing data for 68 wild and cultivated olive trees to study the genetic diversity and structure both at the transcription and sequence levels. To localize putative genes or expression pathways targeted by artificial selection during domestication, we employed a two-step approach in which we identified differentially expressed genes and screened the transcriptome for signatures of selection. Our analyses support a major domestication event in the eastern part of the Mediterranean b

SUBMITTER: Gros-Balthazard M 

PROVIDER: S-EPMC6851578 | biostudies-literature | 2019 Oct

REPOSITORIES: biostudies-literature