@article{fdi:010035705,
  title = {{F}armers' use of wild relative and sexual reproduction in a vegetatively propagated crop. {T}he case of yam in {B}enin},
  author = {{S}carcelli, {N}ora and {T}ostain, {S}erge and {V}igouroux, {Y}ves and {A}gbangla, {C}. and {D}ainou, {O}. and {P}ham, {J}ean-{L}ouis},
  editor = {},
  language = {{ENG}},
  abstract = {{T}he impact of traditional farmers' management on genetic diversity of vegetatively propagated crops is poorly documented. {I}n this study, we analysed the impact of ennoblement of spontaneous yams, an original traditional farmers' practice, on the genetic diversity of yam ({D}ioscorea sp.) in {B}enin. {W}e used 11 microsatellite markers on yam tubers from a small village in northern {B}enin and demonstrated that wild x cultivated hybrids are spontaneously formed. {M}any of the spontaneous yams collected by farmers from surrounding savannah areas for ennoblement were shown to be of wild and hybrid genotypes. {M}oreover, we demonstrated that some yam varieties have a wild or hybrid signature. {L}astly, we performed a broader ranging genetic analysis on yam material from throughout {B}enin and showed that this practice is used in different ecological and ethno-linguistic regions. {T}hrough this practice, farmers create new varieties with new genetic combinations via sexual reproduction of wild and cultivated yams. {T}his system, whereby a sexual cycle and asexual propagation are mixed, ensures potential large-scale cultivation of the best genotypes while preserving the potential for future adaptation.},
  keywords = {{D}ioscorea sp ; farmers' practices ; sexual reproduction ; vegetatively propagated crop ; wild crop relatives},
  booktitle = {},
  journal = {{M}olecular {E}cology},
  volume = {15},
  numero = {9},
  pages = {2421--2431},
  ISSN = {0962-1083},
  year = {2006},
  DOI = {10.1111/j.1365-294{X}.2006.02958.x},
  URL = {https://www.documentation.ird.fr/hor/fdi:010035705},
}