Larval food composition affects courtship song and sperm expenditure in a lekking moth
Larval food composition affects courtship song and sperm expenditure in a lekking moth
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DOI：
10.1111/een.12156
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发表时间：
2015-02-01
影响因子：
2.2
通讯作者：
Reinhold, Klaus
中科院分区：
文献类型：
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作者：
Cordes, Nils;Albrecht, Frederik;Reinhold, Klaus
1.幼虫食物组成的变化可以对昆虫的成虫表型产生深远的影响。为了最大限度地提高繁殖产量，如果昆虫能够可塑性地适应幼虫饮食中的营养线索，这是有益的。2.本文研究了灰腹小蜡螟在不同饲养环境下交配前后性选择的性特征表达.在碳水化合物含量相对较低，但蛋白质和脂肪含量较高的饮食中饲养的蛾，存活率较低，体重下降，发育时间较长。男性饲养这种饮食产生的歌曲具有较高的脉冲对率（这是有吸引力的女性），并转移更多的精子每次交配比男性饲养的替代饮食。4.没有证据表明交配前和交配后性状之间存在权衡。有趣的是，具有更高脉冲对率和更多转移精子的个体来自死亡率更高且通常发育更差的治疗组。目前的研究结果表明，这两种性特征都是发育可塑性的，但只有在富含蛋白质的饮食中饲养的蛾才能从这种可塑性中受益。
1. Variation in larval food composition can have far-reaching effects on the adult phenotype of insects. To maximise reproductive output, it is therefore beneficial if insects are able to plastically adapt to nutritional cues in their larval diet. 2. The expression of sexual traits implicated in pre- and postcopulatory sexual selection of the lesser wax moth, Achroia grisella Fabricius, across different rearing environments of varying diet composition was investigated.3. Moths reared on diet with relatively low amounts of carbohydrate, but more protein and fats, had lower survival rates, decreased body mass, and longer development times. Males reared on this diet produced songs with higher pulse pair rates (which are attractive to females) and transferred more sperm per copulation than males reared on the alternative diets. 4. There was no evidence for a trade-off between pre- and postcopulatory traits. Interestingly, individuals with both higher pulse pair rates and more transferred sperm came from the treatment group with higher mortality rates and generally poorer development. The present results suggest that both of these sexual characteristics are developmentally plastic, but that only moths reared on the protein-rich diet were able to benefit from this plasticity.