Is only the first mating effective for females in the Kanzawa spider mite, Tetranychus kanzawai (Acari: Tetranychidae)?
Although only the first mating is effective for females in Tetranychus urticae (Acari: Tetranychidae), it remains unclear whether this is also true for closely related species, such as T. kanzawai. To address this question, I analyzed paternity in the progeny of T. kanzawai females that had been observed to copulate with two males by using a microsatellite DNA marker. In this study, mating was allowed to take place without experimental interruption. The results show that progenies were sired by both males in only 1 of 14 families, whereas progeny were sired only by the first males in the other families. This result suggests that only the first mating would be, by and large, effective in T. kanzawai.
Laboratory of Evolutionary Ecology, Graduate School of Environmental Science, Okayama University, Okayama, 700-8530, Japan. okeiko@affrc.go.jp
Keiko
K
Oku
D000818:Animals; D005260:Female; D005298:Fertility; D005819:Genetic Markers; D008297:Male; D018895:Microsatellite Repeats; D012726:Sexual Behavior, Animal; D040102:Tetranychidae / Q000235:genetics / Q000502:physiology*
D005819:Genetic Markers