Data from : Worldwide phylogeography and history of wheat genetic diversity

This repository hosts two datasets of the paper "François Balfourier et al., Worldwide phylogeography and history of wheat genetic diversity." Sci.Adv.5, eaav0536(2019). DOI:10.1126/sciadv.aav0536 Data file S2. Genotyping data of 4506 wheat accession with 113,457 genome-wide SNPs. Data file S3. Haplotyping data of 4403 wheat accessions with 8741 haplotypic blocks. Abstract Since its domestication in the Fertile Crescent ~8000 to 10,000 years ago, wheat has undergone a complex history of spread, adaptation, and selection. To get better insights into the wheat phylogeography and genetic diversity, we describe allele distribution through time using a set of 4506 landraces and cultivars originating from 105 different countries genotyped with a high-density single-nucleotide polymorphism array. Although the genetic structure of landraces is collinear to ancient human migration roads, we observe a reshuffling through time, related to breeding programs, with the appearance of new alleles enriched with structural variations that may be the signature of introgressions from wild relatives after 1960. R package This dataset is also available as an R package at this URL https://forgemia.inra.fr/umr-gdec/wheatdata