@article{fdi:010082252,
  title = {{C}ontrasting genetic footprints among {S}aharan olive populations : potential causes and conservation implications},
  author = {{B}esnard, {G}. and {G}orrilliot, {O}. and {R}aimondeau, {P}. and {G}enot, {B}. and {E}l {B}akkali, {A}. and {A}nthelme, {F}abien and {B}aali-{C}herif, {D}.},
  editor = {},
  language = {{ENG}},
  abstract = {{T}he {L}aperrine's olive is endemic to the {S}aharan {M}ountains. {A}dapted to arid environments, it may constitute a valuable genetic resource to improve water-stress tolerance in the cultivated olive. {H}owever, limited natural regeneration coupled with human pressures make it locally endangered in {C}entral {S}ahara. {U}nderstanding past population dynamics is thus crucial to define management strategies. {N}ucleotide sequence diversity was first investigated on five nuclear genes and compared to the {M}editerranean and {A}frican olives. {T}hese data confirm that the {L}aperrine's olive has a strong affinity with the {M}editerranean olive, but it shows lower nucleotide diversity than other continental taxa. {T}o investigate gene flows mediated by seeds and pollen, polymorphisms from nuclear and plastid microsatellites from 383 individuals from four {S}aharan massifs were analyzed. {A} higher genetic diversity in {A}haggar ({H}oggar, {A}lgeria) suggests that this population has maintained over the long term a larger number of individuals than other massifs. {H}igh-to-moderate genetic differentiation between massifs confirms the role of desert barriers in limiting gene flow. {Y}et contrasting patterns of isolation by distance were observed within massifs, and also between plastid and nuclear markers, stressing the role of local factors (e.g., habitat fragmentation, historical range shift) in seed and pollen dispersal. {I}mplications of these results in the management of the {L}aperrine's olive genetic resources are discussed.},
  keywords = {dry area ; gene flow ; isolation by distance ; {L}aperrine's olive ; microsatellites ; plastid {DNA} ; {S}ahara desert ; seed and pollen dispersal ; wild olive genetic resources ; {ALGERIE} ; {NIGER} ; {SAHARA} ; {HOGGAR} ; {AHAGGAR} ; {TASSILI} {NAJJER} ; {AIR} ; {TAMGAK} ; {BAGZANE}},
  booktitle = {},
  journal = {{P}lants},
  volume = {10},
  numero = {6},
  pages = {1207 [18 p.]},
  year = {2021},
  DOI = {10.3390/plants10061207},
  URL = {https://www.documentation.ird.fr/hor/fdi:010082252},
}