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