Insertion polymorphism of transposable elements and population structure of Anopheles gambiae M and S molecular forms in CameroonBoulesteix, M.Simard, FrédéricAntonio-Nkondjio, ChristopheAwono-Ambene, H. P.Fontenille, DidierBiemont, C.Anopheles gambiaeinsertion polymorphismmolecular formspopulation geneticsspeciationtransposable elementsThe insertion polymorphism of five transposable element (TE) families was studied by Southern blots in several populations of the M and S molecular forms of the mosquito Anopheles gambiae sensu stricto from southern Cameroon. We showed that the mean TE insertion site number and the within-population insertion site polymorphism globally differed between the M and S molecular forms. The comparison of the TE insertion profiles of the populations revealed a significant differentiation between these two molecular forms (0.163 < Phi(ST) < 0.371). We cloned several insertions of a non-LTR retrotransposon (Aara8) that were fixed in one form and absent in the other one. The only insertion that could be clearly located on a chromosome arm mapped to cytological division 6 of chromosome X, confirming the importance of this region in the ongoing speciation between the M and S molecular forms.2007texthttp://www.documentation.ird.fr/hor/fdi:010037777oai:ird.fr:fdi:010037777Boulesteix M., Simard Frédéric, Antonio-Nkondjio Christophe, Awono-Ambene H. P., Fontenille Didier, Biemont C. Insertion polymorphism of transposable elements and population structure of Anopheles gambiae M and S molecular forms in Cameroon. Molecular Ecology, 2007, 16 (2), p. 441-452.