@article{fdi:010064768,
  title = {{G}enetic structure of the date palm ({P}hoenix dactylifera) in the {O}ld {W}orld reveals a strong differentiation between eastern and western populations},
  author = {{Z}ehdi-{A}zouzi, {S}. and {C}herif, {E}. and {M}oussouni, {S}. and {G}ros-{B}althazard, {M}. and {N}aqvi, {S}. {A}. and {L}udena, {B}. and {C}astillo, {K}. and {C}habrillange, {N}athalie and {B}ouguedoura, {N}. and {B}ennaceur, {M}. and {S}i-{D}ehbi, {F}. and {A}bdoulkader, {S}. and {D}aher, {A}. and {T}erral, {J}. {F}. and {S}antoni, {S}. and {B}allardini, {M}. and {M}ercuri, {A}. and {B}en {S}alah, {M}. and {K}adri, {K}. and {O}thmani, {A}. and {L}ittardi, {C}. and {S}alhi-{H}annachi, {A}. and {P}intaud, {J}ean-{C}hristophe and {A}berlenc {B}ertossi, {F}r{\'e}d{\'e}rique},
  editor = {},
  language = {{ENG}},
  abstract = {{B}ackground and {A}ims {D}ate palms ({P}hoenix dactylifera, {A}recaceae) are of great economic and ecological value to the oasis agriculture of arid and semi-arid areas. {H}owever, despite the availability of a large date palm germplasm spreading from the {A}tlantic shores to {S}outhern {A}sia, improvement of the species is being hampered by a lack of information on global genetic diversity and population structure. {I}n order to contribute to the varietal improvement of date palms and to provide new insights on the influence of geographic origins and human activity on the genetic structure of the date palm, this study analysed the diversity of the species. {M}ethods {G}enetic diversity levels and population genetic structure were investigated through the genotyping of a collection of 295 date palm accessions ranging from {M}auritania to {P}akistan using a set of 18 simple sequence repeat ({SSR}) markers and a plastid minisatellite. {K}ey {R}esults {U}sing a {B}ayesian clustering approach, the date palm genotypes can be structured into two different gene pools: the first, termed the {E}astern pool, consists of accessions from {A}sia and {D}jibouti, whilst the second, termed the {W}estern pool, consists of accessions from {A}frica. {T}hese results confirm the existence of two ancient gene pools that have contributed to the current date palm diversity. {T}he presence of admixed genotypes is also noted, which points at gene flows between eastern and western origins, mostly from east to west, following a human-mediated diffusion of the species. {C}onclusions {T}his study assesses the distribution and level of genetic diversity of accessible date palm resources, provides new insights on the geographic origins and genetic history of the cultivated component of this species, and confirms the existence of at least two domestication origins. {F}urthermore, the strong genetic structure clearly established here is a prerequisite for any breeding programme exploiting the effective polymorphism related to each gene pool.},
  keywords = {{D}ate palm ; {A}recaceae ; genetic diversity ; genetic structure ; nuclear microsatellite ; {P}hoenix dactylifera ; plastid minisatellite ; {SSR} markers ; {AFRIQUE} ; {ASIE} ; {DJIBOUTI}},
  booktitle = {},
  journal = {{A}nnals of {B}otany},
  volume = {116},
  numero = {1},
  pages = {101--112},
  ISSN = {0305-7364},
  year = {2015},
  DOI = {10.1093/aob/mcv068},
  URL = {https://www.documentation.ird.fr/hor/fdi:010064768},
}