@article{fdi:010042657,
  title = {{H}ost plant diversity of {S}esamia calamistis : cytochrome b gene sequences reveal local genetic differentiation},
  author = {{O}ng'amo, {G}eorges and {L}e {R}ü, {B}runo and {M}oyal, {P}ascal and {C}alatayud, {P}aul-{A}ndr{\'e} and {L}e {G}all, {P}hilippe and {O}gol, {C}. {K}. {P}. {O}. and {K}okwaro, {E}. {D}. and {C}apdevielle {D}ulac, {C}laire and {S}ilvain, {J}ean-{F}ran{\c{c}}ois},
  editor = {},
  language = {{ENG}},
  abstract = {{S}esamia calamistis {H}ampson ({L}epidoptera: {N}octuidae) is one of the indigenous stem borer pests associated with maize ({Z}ea mays {L}.) and sorghum [{S}orghum bicolor ({L}.) {M}oench] (both {P}oaceae) in {A}frica. {I}ts pest status varies across the continent and this has been attributed to variation in diet breadth and ecological preferences among populations. {I}ts larvae were found on 12 plant species during a study initiated at four sites ({M}uhaka, {M}tito {A}ndei, {K}akamega, and {S}uam) in {K}enya to estimate its diet breadth and genetic population structure. {T}en of the infested plant species belonged to the family {P}oaceae [{E}chinochloa haploclada ({S}tapf) {S}tapf, {E}leusine corocana {L}., {E}leusine jaegeri {P}ilg., {P}anicum deustum {T}hunb, {P}anicum maximum {J}acquin, {P}ennisetum purpureum {S}chumacher, {S}etaria verticillata ({L}.) {P}. {B}eauv., {S}orghum arundinaceum ({D}esvaux) {S}tapf, {S}. bicolor, and {Z}. mays]; the other two were {C}yperaceae: {C}yperus distans {L}. and {C}yperus dives {D}elile. {C}ombined with collections from other {A}frican countries ({U}ganda, {S}outh {A}frica, {B}enin, {G}hana, {N}igeria, and {T}ogo), comparisons of partial cytochrome b sequences revealed the presence of 68 haplotypes that differentiated into clades {I} and {II}. {I}n {K}enya, the two clades colonized different regions, except in {M}tito {A}ndei where they co-existed. {I}ndividuals from {M}tito {A}ndei could be separated based on their host plants: clade {I} with 14 haplotypes was found mainly on maize (78.6%), whereas clade {II} with 10 haplotypes was found mainly among wild host plants (63.6%). {D}etection of divergence among these clades with cytochrome b suggests that their evolutionary separation may have taken place about one million years ago. {T}his article discusses the potential implication of this differentiation for the management of {S}. calamistis as a pest of maize and sorghum in {A}frica.},
  keywords = {{D}iet breadth ; {H}aplotypes ; {P}est management ; {W}ild hosts ; {M}aize ; {S}orghum ; {L}epidoptera ; {N}octuidae ; {P}oaceae ; {M}itochondrial gene ; {P}opulation structure ; {P}est management},
  booktitle = {},
  journal = {{E}ntomologia {E}xperimentalis et {A}pplicata},
  volume = {128},
  numero = {1},
  pages = {154--161},
  ISSN = {0013-8703},
  year = {2008},
  DOI = {10.1111/j.1570-7458.2008.00735.x},
  URL = {https://www.documentation.ird.fr/hor/fdi:010042657},
}