Brood-mate avoidance in the parasitic wasp Bracon hebetor Say
Brood-mate avoidance in the parasitic wasp
Bracon hebetor
Say
复制标题
寄生黄蜂 Bracon hebetor Say 中的择偶回避行为
DOI：
10.1006/anbe.1995.0156
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发表时间：
1995
期刊：
影响因子：
2.5
通讯作者：
M. Strand
中科院分区：
文献类型：
--
作者：
P. Ode;M. Antolin;M. Strand
寄生黄蜂 Bracon hebet 患有严重的近交衰退。这项研究检查了两种尽量减少近亲之间交配的行为机制。首先，大多数雄性和雌性在出现后都不愿意立即交配。随着成虫年龄的增长，对交配的接受度逐渐增加。当大多数个体愿意交配时，大多数黄蜂已经从出生地散去。其次，当在同一宿主上发育的雄性和在不同宿主上发育的雄性之间进行选择时，雌性往往会避免与同卵伴侣交配。使用眼睛颜色突变体和由亲属和非亲属组成的幼崽进行的实验表明，雌性会根据环境线索歧视雄性幼崽。如果雌性在另一个宿主上发育，则始终会与兄弟和非兄弟交配，但倾向于拒绝与自己同窝的兄弟和非兄弟。雌性在羽化后至少 5 天保持识别同卵伴侣的能力。
The parasitic waspBracon hebetorsuffers severe inbreeding depression. This study examined two behavioural mechanisms that minimize mating between close relatives. First, the majority of males and females were unwilling to mate immediately upon emergence. Receptivity to mating slowly increased with age of the adult. By the time most individuals were willing to mate, the majority of wasps had dispersed from the natal site. Second, females tended to avoid mating with brood-mates when given a choice between a male that developed on the same host and one that developed on a different host. Experiments using eye-colour mutants and broods composed of relatives and non-relatives indicated that females discriminated against male brood-mates on the basis of environmental cues. Females consistently mated with brothers and non-brothers if they developed on another host, but tended to reject brothers and non-brothers from the same brood as themselves. Females maintained the ability to recognize brood-mates for at least 5 days after eclosion.