@article{fdi:010066742,
  title = {{T}he domestication syndrome in {P}hoenix dactylifera seeds : toward the identification of wild date palm populations},
  author = {{G}ros-{B}althazard, {M}. and {N}ewton, {C}. and {I}vorra, {S}. and {P}ierre, {M}. {H}. and {P}intaud, {J}ean-{C}hristophe and {T}erral, {J}. {F}.},
  editor = {},
  language = {{ENG}},
  abstract = {{I}nvestigating crop origins is a priority to understand the evolution of plants under domestication, develop strategies for conservation and valorization of agrobiodiversity and acquire fundamental knowledge for cultivar improvement. {T}he date palm({P}hoenix dactylifera {L}.) belongs to the genus {P}hoenix, which comprises 14 species morphologically very close, sometimes hardly distinguishable. {I}t has been cultivated for millennia in the {M}iddle {E}ast and in {N}orth {A}frica and constitutes the keystone of oasis agriculture. {Y}et, its origins remain poorly understood as no wild populations are identified. {U}ncultivated populations have been described but they might represent feral, i.e. formerly cultivated, abandoned forms rather than truly wild populations. {I}n this context, this study based on morphometrics applied to 1625 {P}hoenix seeds aims to (1) differentiate {P}hoenix species and (2) depict the domestication syndrome observed in cultivated date palm seeds using other {P}hoenix species as a "wild" reference. {T}his will help discriminate truly wild from feral forms, thus providing new insights into the evolutionary history of this species. {S}eed size was evaluated using four parameters: length, width, thickness and dorsal view surface. {S}eed shape was quantified using outline analyses based on the {E}lliptic {F}ourier {T}ransform method. {T}he size and shape of seeds allowed an accurate differentiation of {P}hoenix species. {T}he cultivated date palm shows distinctive size and shape features, compared to other {P}hoenix species: seeds are longer and elongated. {T}his morphological shift may be interpreted as a domestication syndrome, resulting from the long-term history of cultivation, selection and human-mediated dispersion. {B}ased on seed attributes, some uncultivated date palms from {O}man may be identified as wild. {T}his opens new prospects regarding the possible existence and characterization of relict wild populations and consequently for the understanding of the date palm origins. {F}inally, we here describe a pipeline for the identification of the domestication syndrome in seeds that could be used in other crops.},
  keywords = {{MONDE}},
  booktitle = {},
  journal = {{P}los {O}ne},
  volume = {11},
  numero = {3},
  pages = {e0152394 [21 ]},
  ISSN = {1932-6203},
  year = {2016},
  DOI = {10.1371/journal.pone.0152394},
  URL = {https://www.documentation.ird.fr/hor/fdi:010066742},
}