@article{fdi:010057257,
  title = {{G}enetic structure and origin of {B}usseola fusca populations in {C}ameroon},
  author = {{S}ezonlin, {M}. and {N}demah, {R}. and {G}oergen, {G}. and {L}e {R}ü, {B}runo and {D}upas, {S}t{\'e}phane and {S}ilvain, {J}ean-{F}ran{\c{c}}ois},
  editor = {},
  language = {{ENG}},
  abstract = {{T}he cereal stem borer {B}usseola fusca {F}uller ({L}epidoptera: {N}octuidae) is a species endemic to sub-{S}aharan {A}frica. {I}t is a major pest of maize and cultivated sorghum, the main cereal crops on the {A}frican mainland. {P}revious studies using mitochondrial markers revealed the presence of three clades of haplotypes ({W}, {KI}, {KII}) among {B}. fusca populations. {P}revious preliminary studies based on a few {B}. fusca individuals collected from three localities within the {G}uineo-{C}ongolian rain forest in {C}ameroon demonstrated a matching with clade {KII}, a fairly surprising result because the putative centre of origin of that clade is located 3 similar to 000 similar to km away in {E}ast {A}frica. {T}o check this finding, 120 individuals of {B}. fusca covering several {C}ameroonian sites belonging to both {G}uineo-{C}ongolian rain forest and {A}fromontane vegetation mosaics were collected. {C}omparison of cytochrome b sequences using the same marker revealed low mitochondrial diversity (h similar to=similar to 0.483 similar to+/-similar to 0.054, p similar to=similar to 0.073 similar to+/-similar to 0.061%). {M}oreover, molecular diversity in the {G}uineo-{C}ongolian rain forest zone was lower than that in {A}fromontane vegetation, which is therefore thought to be the likely starting point for the colonization of other zones in {C}ameroon. {T}he study showed a moderate but significant structuring between populations ({FST} similar to=similar to 0.034, {P}<0.001) as well as within and among the two {C}ameroonian phytogeographical groups considered ({FSC} similar to=similar to 0.000 and {FCT} similar to=similar to 0.051, respectively, both {P}<0.001). {N}ested clade phylogeographic analysis indicated that all {C}ameroonian clades with significant geographical associations were interpreted as a phenomenon of contiguous range expansion. {A}ll results suggest that the {C}ameroonian population of {B}. fusca is relatively recent and originates from the recent geographical expansion of clade {KII}.},
  keywords = {maize stalk borer ; population genetics ; mitochondrial haplotype ; clade ; central and {E}ast {A}frica ; {L}epidoptera ; {N}octuidae},
  booktitle = {},
  journal = {{E}ntomologia {E}xperimentalis et {A}pplicata},
  volume = {145},
  numero = {2},
  pages = {143--152},
  ISSN = {0013-8703},
  year = {2012},
  DOI = {10.1111/j.1570-7458.2012.01319.x},
  URL = {https://www.documentation.ird.fr/hor/fdi:010057257},
}