Investment in visual system predicted by floral associations in sap beetles (Coleoptera: Nitidulidae)

Investment in visual system predicted by floral associations in sap beetles (Coleoptera: Nitidulidae)
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通过汁液甲虫的花关联预测视觉系统的投入(鞘翅目:Nitidulidae)

DOI:
10.1111/syen.12558
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发表时间:
2022
影响因子:
4.8
通讯作者:
Bybee, Seth M.
Bybee, Seth M.
中科院分区:
农林科学1区
文献类型:
--
作者:
Powell, Gareth S.;Bybee, Seth M.

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形态变化的模式是进化的中心主题。揭示形态特征进化与自然历史之间的联系,特别是摄食行为,对于理解生物多样性是重要的。液甲虫科(Nitidulidae)内的物种表现出巨大的摄食行为多样性。这种巨大的摄食多样性可以在主要谱系和非常密切相关的分类群之间看到。摄食行为的多样性可能驱动若干特征系统(如眼睛)的形态变化。例如,在从以腐烂的水果为食到采花的过程中,视觉系统的选择压力可能会发生变化,并最终导致眼睛形态的差异。我们测试了成年甲虫相对眼睛大小的潜在形态变化。我们专门测试了相对眼睛大小与以下因素之间的显著关系-访花和性别。我们还测试了系统发育对相对眼睛大小进化的影响,实现了跨拓扑结构的性状相关性测试。我们发现,无论亲缘关系或姐妹类群的摄食行为如何,具有类群亲缘行为的类群的相对眼大小都较大。我们无法恢复眼睛的相对大小和性别之间的关系。因此,摄食行为是目前最能预测树液甲虫眼睛大小的因素。
Patterns in morphological variation are a central theme of evolution. Uncovering links between morphological character evolution and natural history, specifically feeding behaviour, is important to understanding biological diversity. Species within the sap beetles (Nitidulidae) exhibit a tremendous diversity of feeding behaviours. This immense diversity of feeding can be seen both between major lineages and very closely related taxa. Feeding behaviour diversity may drive morphological variation in several character systems (e.g., eyes). For example, in a shift from feeding on rotting fruit to flower‐visiting (anthophily), selective pressures on the visual system may vary and ultimately lead to differences in eye morphology. We tested for potential morphological shifts in relative eye size among adult beetles. We specifically tested for significant relationships between relative eye size and the following factors flower‐visiting and sex. We also tested for the influence of phylogeny on the evolution of relative eye size, implementing tests of trait correlation across a topology. We found greater relative eye size in taxa exhibiting anthophilous behaviour, regardless of phylogenetic relatedness or feeding behaviour of sister taxa. We were unable to recover a relationship between relative eye size and sex. Thus, feeding behaviour is currently the strongest predictor of eye size in sap beetles.
非洲五大湖的丽鱼科鱼类。
DOI: --
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影响因子: 4.8
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