Experimental Evolution of Alkaloid Tolerance in Sibling Drosophila Species with Different Degrees of Specialization

Padró, Julián; Panis, Diego Nicolás de; Vrdoljak, Juan; Carmona, Pablo Sebastián Milla; Colines, Betina; Hasson, Esteban; Soto, Ignacio M.

doi:10.1007/s11692-017-9441-8

Cited by 13 publications

(33 citation statements)

References 56 publications

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“…The second set of experimental stocks consisted in laboratory strains derived from wild caught flies (originally collected in 2014) and subjected to a protocol of artificial selection to increase tolerance to different levels of alkaloids and other allelochemicals during larval rearing. The base populations of D. koepferae and D. buzzatii used to generate the stocks and implement selection protocols are detailed in Padró et al (2018). Briefly, experimental populations were derived from wild flies collected from different populations in north-western Argentina.…”

Section: Experimental Stocksmentioning

confidence: 99%

Specialization and performance trade‐offs across hosts in cactophilic Drosophila species

Bouzas

Barbarich

Soto

et al. 2021

Ecological Entomology

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1. We assessed the host-related niche breadth for D. koepferae and D. buzzatii, a pair of sibling cactophilic species with contrasting backgrounds of host use. We tested for the 'Jack of all trades-Master of none' scenario predicting a more evident exhibition in D. buzzatii rather than in the supposedly specialist D. koepferae.2. Additionally, using laboratory strains of both species selected for tolerance to extremely high concentrations of a columnar cacti's secondary metabolites, we tested whether adaptation to a high-demanding host involved the loss of performance capabilities in other hosts.3. D. buzzatii was more affected by the artificial host shifts than D. koepferae which presented an overall better performance when rearing in novel columnar hosts.4. Artificially selected strains of D. buzzatii performed poorer in both novel and native natural hosts compared with control strain indicating that adaptation carried associated costs regarding the potential to exploit other cacti. Conversely, artificial evolution of the D. koepferae's strains did not translate into decreased performance in other hosts.5. D. buzzatii complied better with the predictions of the Jack of all trades-Master of none hypothesis.6. Host specialization is a dynamic feature in the repleta group and a major driver of diversification in its evolutionary history. As the group presents an Opuntia breeder as the ancestral condition, D. buzzatii would represent not only a plesiomorphic state of host use but also the ancestral ecological strategy of specialization.

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Section: Experimental Stocksmentioning

confidence: 99%

Specialization and performance trade‐offs across hosts in cactophilic Drosophila species

Bouzas

Barbarich

Soto

et al. 2021

Ecological Entomology

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“… 12 There is growing evidence indicates that phytochemicals derived from stressed natural plants may interact with insects in a hormesis way owing to the long period of coevolution. 3 In our preliminary field observation, we found that C chinensis was less fed by S litura larvae, one of regular polyphagous and damaging insects, while other plants in the same area suffered serious insect infestation. Thus, the current study aimed to figure out whether the components derived from R coptidis play a defense role against S litura larvae.…”

Section: Discussionmentioning

confidence: 78%

“… 2 As an adaptive stress response, insects have accordingly evolved diverse metabolic enzymes to detoxify the phytochemicals. 3 Accumulating evidence indicates that the effect of phytochemicals on insects may fit into a general concept known as hormesis, 4 , 5 which refers to a process in which exposure to a low-dose stressor that is damaging at higher doses induces an adaptive beneficial effect on the cell or organism. 6 , 7 Hormesis is characterized by biphasic dose responses (stimulation at low dose and inhibition at high dose) with an inverted U-shaped or J-shaped dose–response curve.…”

Section: Introductionmentioning

confidence: 99%

Biphasic Dose–Response of Components From Coptis chinensis on Feeding and Detoxification Enzymes of Spodoptera litura Larvae

Jiang

Yin

et al. 2020

Dose-Response

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Due to long-term coevolution, secondary metabolites present in plants apparently function as chemical defense against insect feeding, while various detoxification enzymes in insects are adaptively induced as a prosurvival mechanism. Coptis chinensis, a medicinal plant used in traditional Chinese medicine for a thousand years, was found to be less prey to insects in our earlier field observations. Herein, 4 crude extracts obtained from sequential partition of aqueous extract of Rhizoma coptidis with petroleum ether, ethyl acetate, and n-butanol exhibited antifeedant activity against Spodoptera litura (Fabricius) larvae at high doses and inducing activity at low doses. Furthermore, a similar biphasic dose–response of the antifeedant activity against S litura larvae was also observed for jateorhizine, palmatine, and obakunone in Coptis chinensis. Notably, the enzyme activities of glutathione-S-transferase and carboxyl esterase in S litura larvae affected by the different components (jateorhizine, palmatine, obakunone, berberine, and coptisine) of C chinensis also showed a biphasic dose–response with an increasing trend at low doses and a decreasing trend at high doses. Together, our study suggests that the components of C chinensis may play a chemical defensive role against S litura larvae in a hormetic manner.

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“…In effect, Opuntia species contain nutritional components, such as lipids, terpenes, free sugars, acids that are usually found in succulents (eucomic, phorbic, and piscidic), and phenolics (Stintzing & Carle, 2005; Carreira et al, 2014), whereas Trichocereus cacti contain alkaloids (such as mescaline, candicine, and trichocereine; Reti & Castrillón, 1951; Corio et al, 2013; Padró & Soto, 2013). In fact, the greater tolerance to alkaloids exhibited by D. koepferae , as compared to D. buzzatii , has probably evolved as an adaptation to the host shift from prickly pears of Opuntia species to columnar cacti (Soto et al, 2014; Padró et al, 2018; Bouzas et al, 2021). Moreover, natural selection should favour individuals that better exploit resources, particularly when host plants differ in their suitability and immature stages are confined to the host selected by their mother (Markow, 2019).…”

Section: Introductionmentioning

confidence: 99%

Effects of breeding resource and environmental temperature on adult locomotor activity in cactophilic Drosophila

Crespo

Divito

Pueyrredon

et al. 2022

Entomologia Exp Applicata

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The evolution of insects inhabiting arid environments is heavily shaped by resource scarcity and temperature. Ecological interdependence could be tight and complex as in the model cactus–yeast–Drosophila. Cactophilic species of Drosophila (Diptera: Drosophilidae) differ in their preference for the type of breeding resources and life‐history traits that respond to variation in environmental temperature. Adult flies feed and breed on rotting cacti but they are physiologically limited to cope with temperature changes. However, flies can behaviourally avoid such stressful conditions by actively seeking benign microhabitats. We investigate how alternative breeding resources (cactus species) and thermal environment affect the spontaneous adult locomotor activity in two species, Drosophila buzzatii Patterson & Wheeler and Drosophila koepferae Fontdevila & Wasserman, adapted to semi‐arid environments. Locomotor activity of D. buzzatii was more affected by the breeding resource, whereas D. koepferae showed a clear ‘bell shape’ activity curve in response to a wide range of temperatures, independent of the breeding resource. These idiosyncratic responses suggest that the selective pressures that shaped life‐history evolution in these Drosophila species were different, with the breeding resource and environmental temperature contributing to the development of diverging survival strategies in arid environments.

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Experimental Evolution of Alkaloid Tolerance in Sibling Drosophila Species with Different Degrees of Specialization

Cited by 13 publications

References 56 publications

Specialization and performance trade‐offs across hosts in cactophilic Drosophila species

Specialization and performance trade‐offs across hosts in cactophilic Drosophila species

Biphasic Dose–Response of Components From Coptis chinensis on Feeding and Detoxification Enzymes of Spodoptera litura Larvae

Effects of breeding resource and environmental temperature on adult locomotor activity in cactophilic Drosophila

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