@article{fdi:010078955,
  title = {{N}ew insights on spatial genetic structure and diversity of {C}offea canephora ({R}ubiaceae) in {U}pper {G}uinea based on old herbaria},
  author = {{L}abouisse, {J}. {P}. and {C}ubry, {P}hilippe and {A}usterlitz, {F}. and {R}ivallan, {R}. and {N}guyen, {H}. {A}.},
  editor = {},
  language = {{ENG}},
  abstract = {{B}ackgrounds and aims - {P}revious studies showed that robusta coffee ({C}offea canephora {P}ierre ex {A}.{F}roehner), one of the two cultivated coffee species worldwide, can be classified in two genetic groups: the {G}uinean group originating in {U}pper {G}uinea and the {C}ongolese group in {L}ower {G}uinea and {C}ongolia. {A}lthough {C}. canephora of the {G}uinean group is an important resource for genetic improvement of robusta coffee, its germplasm is under-represented in ex situ gene banks and its genetic diversity and population structure have not yet been investigated. {M}ethods - {T}o overcome the limitations of living collections, we explored old herbarium specimens collected in {G}uinea and {C}ote d'{I}voire and conserved at the {M}useum {N}ational d'{H}istoire {N}aturelle, {P}aris. {F}irst, we reviewed the history of collection missions in both countries and how the {C}. canephora herbaria from the {M}useum were assembled. {T}hen, using 23 nuclear microsatellite markers, factorial and model-based {B}ayesian analyses, we investigated the genetic diversity of 126 specimens and 36 controls, analysed their distribution among the {C}ongolese and {G}uinean groups, and estimated admixture proportions for each individual. {K}ey results - {F}or the first time, we detected population genetic structure within the {G}uinean group of {C}. canephora. {T}he {G}uinean genotypes can be assigned to five sub-groups with distinct geographic distribution especially in {G}uinea where two sub-groups ({M}aclaudii and {G}ame) are characterized by a low level of admixture due to geographical isolation. {C}onclusions - {W}e showed how combining a literature review and genetic data from old herbarium specimens can shed light on previous observations made by botanists and guide further actions to better preserve native coffee plants in forest remnants of {W}est {A}frica.},
  keywords = {{C}offea canephora ; {C}ote d'{I}voire ; genetic diversity ; {G}uinea herbarium ; population genetic structure ; robusta coffee ; {R}ubiaceae ; {SSR} markers ; {W}est {A}frican forest ; {COTE} {D}'{IVOIRE} ; {GUINEE}},
  booktitle = {},
  journal = {{P}lant {E}cology and {E}volution},
  volume = {153},
  numero = {1},
  pages = {82--100},
  ISSN = {2032-3913},
  year = {2020},
  DOI = {10.5091/plecevo.2020.1584},
  URL = {https://www.documentation.ird.fr/hor/fdi:010078955},
}