@article{fdi:010049266,
  title = {{F}avourable habitats for {C}offea inter-specific hybridization in central {N}ew {C}aledonia : combined genetic and spatial analyses},
  author = {{G}omez, {C}{\'e}line and {B}atti, {A}. and {L}e {P}ierr{\`e}s, {D}aniel and {C}ampa, {C}laudine and {H}amon, {S}erge and {K}ochko, {A}lexandre de and {H}amon, {P}erla and {H}uynh, {F}r{\'e}d{\'e}ric and {D}espinoy, {M}arc and {P}oncet, {V}al{\'e}rie},
  editor = {},
  language = {{ENG}},
  abstract = {1. {H}uman disturbance of natural habitats has increasingly promoted hybridization between previously isolated species. {C}offee trees ({C}offea canephora, {C}. liberica and {C}. arabica) have been introduced into {N}ew {C}aledonia for cultivation since the 1850s. {M}any plantations have since been abandoned, leaving the cultivars to evolve in natural conditions. {T}his historical situation and the local environmental conditions have led to gene flow between sympatric species and the creation of hybrid zones which can be considered as a natural laboratory for studying gene flow dynamics. {O}ur objectives were to assess the nature of these hybridizations and to model the distribution of habitats favourable for these hybrid zones at a regional scale. 2. {W}e analysed a tri-specific model population with 26 microsatellite markers using a multilocus analysis approach. {W}e applied {B}ayesian methods to characterize the species identity of founder individuals and identify inter-specific hybrids. {A} high level of genetic diversity and inter-specific hybridization was observed in the population. {T}o evaluate the presence of other favourable environments in the local area, a geographic information system was used to spatially differentiate the phenomenon and optimize future hybrid collecting missions. {W}e constructed a predictive distribution model based on observation and environmental expertise (climatic parameters, physical parameters and landcover) at four reference sites of the hybrid zone. 3. {A}t all four sites the {C}offea species were found to be involved in inter-specific hybridization, with one population, in particular, revealing high genetic diversity. {A}ccording to the environmental expertise, 40% of the studied region appeared to be favourable for this phenomenon and the model was validated with a prediction accuracy of 79%. 4. {S}ynthesis and applications. {T}he use of microsatellite markers was efficient for assessing the nature and extent of coffee tree hybridization events. {T}he environmental expertise and model allowed comparisons between {N}ew {C}aledonia and {A}frica ecological niches. {T}his methodology may be recommended for better management of de novo in situ coffee genetic resources and applied to other plants to provide insight into the impact of adaptation to new environment. {C}ombining environmental and species biological parameters would help in analysing modifications in plant reproductive behaviour induced by global climate change.},
  keywords = {{C}offea sp. ; decision tree ; environmental expertise ; genetic structure ; {GIS} ; inter-specific hybridization ; {N}ew {C}aledonia ; {SSR}},
  booktitle = {},
  journal = {{J}ournal of {A}pplied {E}cology},
  volume = {47},
  numero = {1},
  pages = {85--95},
  ISSN = {0021-8901},
  year = {2010},
  DOI = {10.1111/j.1365-2664.2009.01762.x},
  URL = {https://www.documentation.ird.fr/hor/fdi:010049266},
}