Influence of maternal diet on offspring survivorship, growth, and reproduction in a sheetweb spider.
Influence of maternal diet on offspring survivorship, growth, and reproduction in a sheetweb spider.
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母体饮食对板网蜘蛛后代存活、生长和繁殖的影响
DOI：
10.1242/bio.056846
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发表时间：
2020-11-06
期刊：
影响因子：
2.4
通讯作者：
Li D
中科院分区：
文献类型：
--
作者：
Wen L;Zhang Z;Zhang S;Liu F;Jiao X;Li D
摘要猎物的质量差异很大，通常认为母体饮食对蜘蛛后代的存活、生长和繁殖有很大影响。许多检验这一假设的研究都只关注亲代，或者只考虑了相对较少的青少年后代的健康成分。然而，母体饮食可能会对幼年后代以外的健康表现产生实质性影响。在这里，我们调查了一种寿命极短的片网蜘蛛(∼1 月)一次母性喂养对多个后代健康成分的影响，包括幼虫的存活率和生长，以及成年后代的交配和繁殖成功。在产卵前，我们只喂了一次野外采集的成年雌性蜘蛛两种不同的食物：蚊子(Tendipe sp.)仅限(MO)或仅限果蝇(FO)。与FO子代相比，MO雌性幼虫的成活率高，生长快，成熟时雄性体型较大。虽然母食对雌性后代的交配行为或繁殖力总体上没有显著影响，但MO雌性比FO雌性产卵早，孵化早，孵化率高。有趣的是，一次性的母体喂养足以对后代的健康产生如此大的影响，甚至超出了幼年后代的影响。这种曾经的母性效应可能在其他蜘蛛和其他寿命较短的无脊椎动物中广泛存在。本文对这篇论文的第一作者进行了相关的第一人称采访。摘要：产卵前的一顿饭就足以影响草席蜘蛛后代的存活、生长和女儿的繁殖。
ABSTRACT Prey vary dramatically in quality, and maternal diet is generally assumed to substantially influence offspring survivorship, growth, and reproduction in spiders. Numerous studies that have tested this hypothesis have focused exclusively on parental generation or have considered relatively few fitness components of juvenile offspring. However, maternal diet may have a substantial effect on fitness performance beyond juvenile offspring. Here, we investigated the influence of one-time maternal feeding on multiple offspring fitness components, including the survival rate and growth of juvenile offspring as well as the mating and reproductive success of adult offspring in Hylyphantes graminicola, a sheetweb spider with an extremely short lifespan (∼1 month). We fed field-collected adult female spiders two different diets only once immediately before oviposition: midges (Tendipes sp.) only (MO) or flies (Drosophila melanogaster) only (FO). Juvenile offspring of MO females had significantly higher survival rate, faster growth, and larger male size at maturity than FO offspring. Although maternal diet did not significantly influence mating behavior or fecundity of female offspring overall, those of MO females laid eggs earlier and their eggs also hatched earlier and had a higher hatching rate than those of FO females. Intriguingly, one-time maternal feeding was sufficient to have such an influence on offspring fitness even beyond juvenile offspring in H. graminicola. This one-time maternal effect may be widespread in other spiders and other invertebrates with a short lifespan. This article has an associated First Person interview with the first author of the paper. Summary: A single meal immediately before oviposition is sufficient to influence offspring survival, growth, and daughters' reproduction in the sheetweb spider Hylyphantes graminicola.
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影响因子：
3.3
作者：
Bressendorff, Berith B.;Toft, Soren
通讯作者：
Toft, Soren
影响因子：
5.2
作者：
Rickers, S;Langel, R;Scheu, S
通讯作者：
Scheu, S
影响因子：
1.4
作者：
Sigsgaard, L;Toft, S;Villareal, S
通讯作者：
Villareal, S
影响因子：
2
作者：
HALLAS, SEA
通讯作者：
HALLAS, SEA
影响因子：
1.5
作者：
Blamires, Sean J.
通讯作者：
Blamires, Sean J.