@article{fdi:010075156,
  title = {{C}ross-species hybridization and the origin of {N}orth {A}frican date palms},
  author = {{F}lowers, {J}. {M}. and {H}azzouri, {K}. {M}. and {G}ros-{B}althazard, {M}. and {M}o, {Z}. {Y}. and {K}outroumpa, {K}. and {P}errakis, {A}. and {F}errand, {S}. and {K}hierallah, {H}. {S}. {M}. and {F}uller, {D}. {Q}. and {A}berlenc {B}ertossi, {F}r{\'e}d{\'e}rique and {F}ournaraki, {C}. and {P}urugganan, {M}. {D}.},
  editor = {},
  language = {{ENG}},
  abstract = {{D}ate palm ({P}hoenix dactylifera {L}.) is a major fruit crop of arid regions that were domesticated similar to 7,000 y ago in the {N}ear or {M}iddle {E}ast. {T}his species is cultivated widely in the {M}iddle {E}ast and {N}orth {A}frica, and previous population genetic studies have shown genetic differentiation between these regions. {W}e investigated the evolutionary history of {P}. dactylifera and its wild relatives by resequencing the genomes of date palm varieties and five of its closest relatives. {O}ur results indicate that the {N}orth {A}frican population has mixed ancestry with components from {M}iddle {E}astern {P}. dactylifera and {P}hoenix theophrasti, a wild relative endemic to the {E}astern {M}editerranean. {I}ntrogressive hybridization is supported by tests of admixture, reduced subdivision between {N}orth {A}frican date palm and {P}. theophrasti, sharing of haplotypes in introgressed regions, and a population model that incorporates gene flow between these populations. {A}nalysis of ancestry proportions indicates that as much as 18% of the genome of {N}orth {A}frican varieties can be traced to {P}. theophrasti and a large percentage of loci in this population are segregating for single-nucleotide polymorphisms ({SNP}s) that are fixed in {P}. theophrasti and absent from date palm in the {M}iddle {E}ast. {W}e present a survey of {P}hoenix remains in the archaeobotanical record which supports a late arrival of date palm to {N}orth {A}frica. {O}ur results suggest that hybridization with {P}. theophrasti was of central importance in the diversification history of the cultivated date palm.},
  keywords = {introgression ; archaeobotany ; domestication ; crop wild relative ; range ; expansion ; {AFRIQUE} {DU} {NORD}},
  booktitle = {},
  journal = {{P}roceedings of the {N}ational {A}cademy of {S}ciences of the {U}nited {S}tates of {A}merica},
  volume = {116},
  numero = {5},
  pages = {1651--1658},
  ISSN = {0027-8424},
  year = {2019},
  DOI = {10.1073/pnas.1817453116},
  URL = {https://www.documentation.ird.fr/hor/fdi:010075156},
}