Host range of Asobara japonica (Hymenoptera: Braconidae), a larval parasitoid of drosophilid flies
Host range of Asobara japonica (Hymenoptera: Braconidae), a larval parasitoid of drosophilid flies
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DOI：
10.1111/j.1479-8298.2007.00244.x
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发表时间：
2008-03-01
影响因子：
0.9
通讯作者：
Kimura, Masahito T.
中科院分区：
文献类型：
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作者：
Ideo, Shinsuke;Watada, Masayoshi;Kimura, Masahito T.
研究了拟果蝇幼虫-蛹寄生体Asobara japonica的寄主范围。生境选择是该寄生蜂寄主范围的重要决定因素；它攻击在香蕉和蘑菇上繁殖的果蝇幼虫，但很少攻击在腐叶上繁殖的果蝇幼虫。这种寄生物能够利用多种果蝇类群作为寄主。寄主有时会在幼虫期被日本纵蛾攻击而死亡，因此寄生蜂幼虫也会死亡。果蝇线虫和d . busckii遭受幼虫死亡率特别高,由于攻击a粳稻(在后一种物种只有当年轻的幼虫被攻击)。在幼虫后期被寄生时，也有许多个体在蛹期死亡而不产生拟寄生物。与之相对的是，双峰褐皮夜蛾、红唇褐皮夜蛾、迁徙褐皮夜蛾、台湾褐皮夜蛾和白颊褐皮夜蛾对攻击具有抗性，即使在有拟寄生物存在的情况下，这些果蝇的幼虫仍有很大比例能成长为成虫。根据系统发育信息，我们得出结论，系统发育位置作为决定一个物种是否适合作为粳稻寄主的因素只有有限的重要性，至少在果蝇属中是这样。
We studied the host range of Asobara japonica, a larval-pupal parasitoid of drosophilid flies. Habitat selection was found to be an important determinant of host range in this parasitoid; it attacked drosophilid larvae breeding on banana and mushrooms, but seldom attacked those breeding on decayed leaves. This parasitoid was able to use diverse drosophilid taxa as hosts. Attack by A. japonica sometimes killed hosts at the larval stage, and therefore parasitoid larvae also died. Drosophila elegans and D. busckii suffered particularly high larval mortality due to the attack by A. japonica (in the latter species only when young larvae were attacked). Many individuals of D. subpulchrella also died at the pupal stage without producing parasitoids when they were parasitized at the late larval stage. In contrast, D. bipectinata, D. ficusphila, D. immigrans, D. formosana and D. albomicans were resistant to attack: large proportions of the larvae of these drosophilid species grew to adulthood, even in the presence of parasitoids. On the basis of phylogenetic information, we concluded that phylogenetic position has only limited importance as a factor determining whether a species is suitable as a host for A. japonica, at least within the genus Drosophila.