title: Population structure and genetic diversity in insular populations of Nasutitermes takasagoensis (Isoptera: Termitidae) analyzed by AFLP markers.
abstract: Dispersal ability and degree of inbreeding in a population can indirectly be assessed using genetic markers. In general, it was suggested that winged termites are not able to fly distances greater than several hundred meters. Here, amplified fragment length polymorphism (AFLP) was used to analyze genetic diversity, population substructure, and gene flow among insular populations of the termite Nasutitermes takasagoensis (Isoptera: Termitidae) in the Yaeyama Islands, Okinawa, Japan. Samples were collected from 77 nests on seven islands of the Yaeyama Group. Using three primer combinations a total of 155 bands were generated with 78 (50%) polymorphic bands. Genetic distance and G(st) values among insular populations were calculated. Relatively high genetic diversity and low values of G (st), suggest there is moderate subpopulation structure. Based on these results, we discussed two possibilities; first, winged termites are able to fly over distances of several kilometers, and second, these results were obtained because insular populations share a recent common origin.
authors.affiliation: Department of Biology, Graduate School of Arts and Sciences, University of Tokyo, Komaba, Japan.
authors.forename: Julio
authors.initials: J
authors.lastname: García
authors.forename: Kiyoto
authors.initials: K
authors.lastname: Maekawa
authors.forename: Toru
authors.initials: T
authors.lastname: Miura
authors.forename: Tadao
authors.initials: T
authors.lastname: Matsumoto
mesh_terms: D000818:Animals; D017344:Genes, Insect / Q000235:genetics; D005819:Genetic Markers / Q000235:genetics; D014644:Genetic Variation / Q000235:genetics*; D005843:Geography; D020049:Isoptera / Q000235:genetics*; D007564:Japan; D011110:Polymorphism, Genetic / Q000235:genetics*; D011157:Population Dynamics
chemical_list: D005819:Genetic Markers