@article{fdi:010092590,
  title = {{G}enome-wide association analysis of flowering date in a collection of cultivated olive tree},
  author = {{A}qbouch, {L}. and {A}bou-{S}aaid, {O}. and {S}arah, {G}. and {Z}unino, {L}. and {S}egura, {V}. and {M}ournet, {P}. and {B}onal, {F}. and {Z}aher, {H}. and {E}l {B}akkali, {A}. and {C}ubry, {P}hilippe and {C}ostes, {E}. and {K}hadari, {B}.},
  editor = {},
  language = {{ENG}},
  abstract = {{F}lowering date in perennial fruit trees is an important trait for fruit production. {D}epending on the winter and spring temperatures, flowering of olive may be advanced, delayed, or even suppressed. {D}eciphering the genetic control of flowering date is thus key to help selecting cultivars better adapted to the current climate context. {H}ere, we investigated the genetic determinism of full flowering date stage in cultivated olive based on capture sequencing data of 318 genotypes from the worldwide olive germplasm bank of {M}arrakech, {M}orocco. {T}he genetic structure of this collection was organized in three clusters that were broadly attributed to eastern, central, and western {M}editerranean regions, based on the presumed origin of genotypes. {F}lowering dates, collected over 7 years, were used to estimate the genotypic best linear unbiased predictors, which were then analyzed in a genome-wide association study. {L}oci with small effects were significantly associated with the studied trait, by either a single- or a multi-locus approach. {T}he three most robust loci were located on chromosomes 01 and 04, and on a scaffold, and explained 7.1%, 6.2%, and 6.5% of the trait variance, respectively. {A} significantly higher accuracy in the best linear unbiased predictors of flowering date prediction was reported with {R}idge- compared to {LASSO}-based genomic prediction model. {A}long with genomic association results, this suggests a complex polygenic determinism of flowering date, as seen in many other fruit perennials. {T}hese results and the screening of associated regions for candidate genes open perspectives for further studies and breeding programs targeting flowering date.},
  keywords = {{MAROC}},
  booktitle = {},
  journal = {{H}orticulture {R}esearch},
  volume = {12},
  numero = {1},
  pages = {uhae265 [13 p.]},
  ISSN = {2662-6810},
  year = {2025},
  DOI = {10.1093/hr/uhae265},
  URL = {https://www.documentation.ird.fr/hor/fdi:010092590},
}