Interspecific hybridization between Liriomyza sativae Blanchard and L. trifolii (Burgess) (Diptera: Agromyzidae)

  • Tokumaru Susumu
    Kyoto Prefectural Agricultural Research Institute
  • Abe Yoshihisa
    Laboratory of Applied Entomology, Graduate School of Agriculture, Kyoto Prefectural University

書誌事項

公開日
2005
DOI
  • 10.1303/aez.2005.551
公開者
日本応用動物昆虫学会

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説明

We confirmed the occurrence of interspecific hybridization between Liriomyza sativae and L. trifolii on kidney bean (Phaseolus vulgaris L.) at 25°C under a 15L–9D photoperiod regime. Among 48 replications of L. sativae females and L. trifolii males tested, females of 19 replications (39.6%) oviposited, but no eggs hatched. In contrast, among 115 replications of L. trifolii females and L. sativae males tested, females of 47 replications (40.9%) oviposited and progeny from 10 replications (8.7%) developed to adult eclosion. The hybrid offspring were obtained only when several L. trifolii females and several L. sativae males were placed together. The hatchability, pupation rate, and adult emergence rate of hybrid flies were 14.9%, 94.9%, and 61.8%, respectively. All the hybrid adults were female (n=127). When these females were backcrossed with males of either species, none oviposited. The mean adult longevity of a hybrid female was 19.2 d.

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