The arms race between heliconiine butterflies and Passiflora plants – new insights on an ancient subject

@article{deCastro2018TheAR,
  title={The arms race between heliconiine butterflies and Passiflora plants – new insights on an ancient subject},
  author={{\'E}rika C. P. de Castro and Mika Zagrobelny and M{\'a}rcio Zik{\'a}n Cardoso and S{\o}ren Bak},
  journal={Biological Reviews},
  year={2018},
  volume={93}
}
Heliconiines are called passion vine butterflies because they feed exclusively on Passiflora plants during the larval stage. Many features of Passiflora and heliconiines indicate that they have radiated and speciated in association with each other, and therefore this model system was one of the first examples used to exemplify coevolution theory. Three major adaptations of Passiflora plants supported arguments in favour of their coevolution with heliconiines: unusual variation of leaf shape… 
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The effect of insect cyanoglucosides on predation by domestic chicks
  • M. Cardoso
  • Biology, Environmental Science
    bioRxiv
  • 2019
TLDR
Support is provided for cyanoglucosides as defensive chemicals of aposematic lepidopterans and related arthropods by the rejection of cyanide laced prey, which suggests that some species that store aromatic cyanoglUCosides could be detected via smell as well by taste.
The effect of cyanogenic glucosides and their breakdown products on predation by domestic chicks
TLDR
Support is provided for cyanoglucosides as defensive chemicals of aposematic lepidopterans and related arthropods by rejection of cyanide-laced prey and the rejection of the pungent but not toxic benzaldehyde and the potential effect of acetone suggest that cyanoglucaosides could be detected via smell as well by taste.
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References

SHOWING 1-10 OF 172 REFERENCES
Only Attract Ants? The Versatility of Petiolar Extrafloral Nectaries in Passiflora
TLDR
A more active role is suggested in the modulation of the gland defense from plants besides the establishment of a mutualistic relationship with ants, an important response in a coevolutive scenario.
The transcriptome response of Heliconius melpomene larvae to a novel host plant
TLDR
It is suggested that transcriptional plasticity of genes in a herbivore may play an important role in adaptation to a new host plant.
COEVOLUTION OF PLANTS AND HERBIVORES: PASSION FLOWER BUTTERFLIES
TLDR
A hypothesis as to just how coevolution between insects and plants in the past resulted in these present day patterns was suggested by Brues (1920) and developed fully by Ehrlich and Raven (1965) on the basis of butterfly host plant data.
Ant protection against herbivores and nectar thieves in Passiflora coccinea flowers
TLDR
A protective role of ants for flowers of Passiflora coccinea is suggested, improving plant reproductive success and possible fitness benefits for the plant resulting from the presence of ants.
Defense and carnivory: Dual role of bracts inPassiflora foetida
TLDR
Results suggest a novel role for bracts where primary function is to minimize predatory damage to developing flowers and fruits and the mechanism to digest the trapped insects to obtain free aminoacids.
Cyanogenesis in plants and arthropods.
Effects of Cyanogenesis Polymorphism in Turnera ulmifolia on Euptoieta hegesia and Potential Anolis Predators
TLDR
It is provided that the presence of sequestered cyanogenic compounds in the larvae protects them from terrestrial-based predators such as Anolis lizards, and indicates that larvae are capable of sequestering cyanogenic glycosides from their host plants and possibly of synthesizing these or similar compounds.
The Proposed Anti-herbivory Roles of White Leaf Variegation
It has been suggested that white variegation, the outcome of various developmental, genetic, and physiological processes, may defend leaves and other plant organs from herbivory by several proposed
...
...