@article{fdi:010049630,
  title = {{E}vidence of diploidy in the wild {A}merindian yam, a putative progenitor of the endangered species {D}ioscorea trifida ({D}ioscoreaceae)},
  author = {{B}ousalem, {M}. and {V}iader, {V}. and {M}ariac, {C}{\'e}dric and {G}omez, {R}. {M}. and {H}ochu, {I}. and {S}antoni, {S}. and {D}avid, {J}.},
  editor = {},
  language = {{ENG}},
  abstract = {{T}he fundamental question about {D}ioscorea trifida ({D}ioscoreaceae), the most important {A}merindian yam, that remains unresolved concerns its evolutionary origin, since no wild relative has been reported. {I}n this paper we report the existence of {D}. trifida's wild relative for the first time. {T}he diploidy of wild {D}. trifida (2n = 40) is clearly demonstrated by flow cytometry, chromosome counts, and microsatellite pattern analysis, whereas the cultivated form was previously shown to be autotetraploid (2n = 80). {I}n the coastal region where the wild and cultivated forms are sympatric, tetraploid and tripploid cytotypes coexist within the same populations. {I}n the sites where the wild and cultivated forms are allopatric. the wild diploid cytotype predominates. {AFLP} (amplified fragment length polymorphism) analyses gave an initial idea of the position of the wild forms in relation to the cultivated forms. {A}ll the wild and cultivated types form a monophyletic group structured into two major subgroups corresponding to the tetraploid cytotype of the cultivated form and the diploid cytotype of the wild form. {T}he triploid cytotypes of the wild form are in an intermediary position. {W}ild accessions are grouped on the basis of their geographic origin. {T}he data presented in this paper are significant for the effective breeding and conservation of {D}. trifida and to assess its genetic diversity and population structure for the general understanding of the evolution and domestication of the species.},
  keywords = {yam ; {D}ioscorea trifida ; wild relative ; ploidy ; microsatellites ; {AFLP} ; flow cytometry ; chromosome count},
  booktitle = {},
  journal = {{G}enome},
  volume = {53},
  numero = {5},
  pages = {371--383},
  ISSN = {0831-2796},
  year = {2010},
  DOI = {10.1139/g10-016},
  URL = {https://www.documentation.ird.fr/hor/fdi:010049630},
}