Cytoplasmic incompatibility in allopatric field populations of the small brown planthopper, Laodelphax striatellus, in Japan
1984
Noda, Hiroaki
The small brown planthopper, Laodelphax striatellus (Homoptera, Delphacidae), shows reproductive cytoplasmic incompatibility between laboratory-cultured strains. Wild planthoppers were crossed for the purpose of examining the incompatibility principle in allopatric field populations. On the basis of the incompatibility recorded in field populations, Japanese planthopper populations were divided into two groups: one from the north-eastern part and one from the western part of Japan. Crosses between the females of the former group and males of the latter gave infertile eggs, showing unidirectional incompatibility. A small number of eggs from incompatible pairs, however, developed normally.
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