@article{fdi:010078130, title = {{P}opulation genetics of the {M}editerranean corn borer ({S}esamia nonagrioides) differs between wild and cultivated plants}, author = {{J}ika, {A}. {K}. {N}. and {L}e {R}ΓΌ, {B}runo and {C}apdevielle {D}ulac, {C}laire and {C}hardonnet, {F}. and {S}ilvain, {J}ean-{F}ran{\c{c}}ois and {K}aiser, {L}. and {D}upas, {S}t{\'e}phane}, editor = {}, language = {{ENG}}, abstract = {{T}he population genetic structure of crop pest populations gives information about their spatial ecology, which helps in designing management strategies. {I}n this paper, we investigated the genetic structure of the {M}editerranean {C}orn {B}orer ({MCB}), {S}esamia nonagrioides {L}efebvre ({L}epidoptera: {N}octuidae), one of the most important maize pests in the {M}editerranean countries, using microsatellite markers for the first time in this species. {I}nsects were collected in twenty-five locations in southwest and southeast {F}rance from cultivated and wild host plants ({Z}ea mays, {S}orghum halepense and {T}ypha domingensis). {C}ontrary to what has been reported so far in {F}rance, we found that {MCB} populations could be locally abundant on wild poales plants. {A}nalysis was carried out at 11 polymorphic microsatellite markers. {M}olecular variance was significantly determined by geography, then by host plant, with 17% and 4%, respectively, when considered as a major effect, and with 14% and 1%, respectively, when considered as a marginal effect in permutational analysis. {M}ultidimensional scaling ({MDS}) and {GENELAND} {B}ayesian clustering suggested that populations infecting wild plants ({T}. domingensis and {S}. halepense) were more structured locally than those affecting cultivated maize. {I}n {S}. halepense, significant {I}solation {B}y {D}istance ({IBD}) indicated that this factor could explain genetic differentiation of the moth populations. {I}n {T}. domingensis, local population differentiation was strong but did not depend on distance. {T}he implication of this absence of population structure in maize and the heterogeneity of population genetics patterns in wild plants are discussed in the context of the population dynamics hypothesis and population management strategies.}, keywords = {{FRANCE}}, booktitle = {}, journal = {{PL}o{S} {O}ne}, volume = {15}, numero = {3}, pages = {e0230434 [17 ]}, ISSN = {1932-6203}, year = {2020}, DOI = {10.1371/journal.pone.0230434}, URL = {https://www.documentation.ird.fr/hor/fdi:010078130}, }