Genetic basis for different host use in Epilachna pustulosa, a herbivorous ladybird beetle

Ueno, Hideki; Fujiyama, Naoyuki; Katakura, Haruo

doi:10.1038/hdy.1997.42

Cited by 14 publications

(10 citation statements)

References 40 publications

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“…However, negative correlations were found in only a limited variety of species (Gould, 1979;Fry, 1990;Via, 1991). Instead of a negative genetic correlation, either positive or no genetic correlations were commonly reported in previous studies (Rausher, 1984b;Via, 1984;Hare & Kennedy, 1986;Futuyma & Philippi, 1987;James et al, 1988;Jaenike, 1989;Karowe, 1990;Fox, 1993;Lu et al, 1997;Ueno et al, 1997Ueno et al, , 1999Balabeni & Rahier, 2000).…”

Section: Introductionmentioning

confidence: 70%

“…*P < 0.05; **P < 0.01; ***P < 0.001. (Kurosawa, 1953;Ueno et al, 1997;Yamaga & Ogushi, 1999), the high growth performance on blue cohosh appears to be a consistent characteristic of Sapporo populations. The high affiliation of Sapporo populations to blue cohosh is also suggested by a greater preference for the host-plant in comparison with populations from other localities (Hoshikawa, 1984).…”

Section: Survivalmentioning

confidence: 95%

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Genetic architecture for normal and novel host-plant use in two local populations of the herbivorous ladybird beetle, Epilachna pustulosa

Ueno

Fujiyama

Yao

et al. 2003

Journal of Evolutionary Biology

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Trade-offs in host-plant use are thought to promote the evolution of host specificity. However, usually either positive or no genetic correlations have been found. Whereas factors enhancing variation in overall viability have been claimed to mask negative genetic correlations, alternative hypotheses emphasize the sequential changes in genetic correlation in the course of hostrange evolution. In this study, the genetic architectures of performances on different hosts were compared in two populations of the herbivorous ladybird beetle, Epilachna pustulosa, using three host plants, one being normal for both, one novel for only one population, and the other novel for both populations. The genetic correlations between larval periods on normal hosts were significantly positive whereas those between normal and novel hosts were not different from zero. There was no evidence for reduced genetic variation on the normal host-plants. These results suggest that the host-range is not restricted by the antagonistic genetic associations among exploitation abilities on different plant species, but rather that selection of different host-plants may improve the coordination between genes responsible for the use of different plants.

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Section: Introductionmentioning

confidence: 70%

Section: Survivalmentioning

confidence: 95%

Genetic architecture for normal and novel host-plant use in two local populations of the herbivorous ladybird beetle, Epilachna pustulosa

Ueno

Fujiyama

Yao

et al. 2003

Journal of Evolutionary Biology

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“…Hoshikawa (1984) conducted a laboratory preference test and also showed that females of E. pustulosa, collected from the suburbs of Sapporo, preferred blue cohosh over thistle. Ueno et al (1997) also showed that E. pustulosa larvae perform better on blue cohosh than on thistle in the laboratory. They found that larvae on blue cohosh had signi®cantly higher larval survival, shorter development times to adult emergence and larger body size in both sexes than those on thistle.…”

Section: Bottom-up Eects On Ospring Performancementioning

confidence: 89%

Preference-performance linkage in a herbivorous lady beetle: consequences of variability of natural enemies

Yamaga

Ohgushi

1999

Oecologia

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We investigated the relationship between oviposition preference and offspring performance in a herbivorous lady beetle Epilachna pustulosa on two co-occurring plant species, thistle Cirsium kamtschaticum and blue cohosh Caulophyllum robustum, in 1994 and 1995. The relative importance of bottom-up effects by host plants and top-down effects by natural enemies on offspring performance were determined using field and laboratory experiments. In both years, egg density on blue cohosh was significantly higher than on thistle. A laboratory experiment demonstrated that larval survival from hatching to adult emergence was significantly higher, and developmental period shorter when larvae were reared on blue cohosh compared to thistle. The positive preference-performance linkage varied between years in the field. Top-down effects had a different impact on larval survival on the two host plant species. Arthropod predators, a lady beetle Harmonia axyridis and an earwig Forficula mikado, considerably depressed immature survival on thistle, while they were negligible on blue cohosh. Although the lack of effective predation increased larval survival on blue cohosh, it led to defoliation due to increased larval feeding late in the season. Because of severe intraspecific competition, old larvae had significantly lower survival on blue cohosh than on thistle. In 1994, as larval survival decreased due to defoliation on blue cohosh, the overall survival rate was significantly higher on thistle than on blue cohosh. This survival pattern was opposite to that found in the laboratory experiment. In contrast, in 1995, the increase in predatory lady beetles on thistle caused greater larval mortality. Thus, the overall survival was significantly lower on thistle than on blue cohosh, although severe intraspecific competition occurred on blue cohosh as it had in 1994. Consequently, the offspring performance on the two host plants is largely determined by the relative importance of arthropod predation determining larval survival on thistle and host plant defoliation reducing late larval survival on blue cohosh. These results indicate the important role of spatial and temporal variability of natural enemies on the preference-performance linkage of herbivorous insects.

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“…Such trade-offs should be linked to negative genetic correlations of larval fitness traits across hosts, favouring the evolution of hostspecialised genotypes that could theoretically lead to speciation (see Via, 1990;Jaenike, 1990). However, negative across-host genetic correlations of larval performance traits have rarely been found (e.g., recently Ueno et al, 1997;Keese, 1998;Lazarevic et al, 1998;discussed in, among others, Rausher, 1988discussed in, among others, Rausher, , 1992Jaenike, 1990;Via, 1990;Thompson, 1994;Joshi & Thompson, 1995;Fry, 1996). Recently, it has been proposed that negative genetic correlations may not be necessary for host specialisation to evolve, but that a significant statistical interaction of larval performance traits between insect genotypes and host plant could suffice (Fry, 1996).…”

Section: Introductionmentioning

confidence: 99%

Performance of leaf beetle larvae on sympatric host and non‐host plants

Ballabeni

Rahier

2000

Entomologia Exp Applicata

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Studies asking the ability of insects to utilize novel host plants often use novel hosts that are allopatric with the insect population under investigation. However, since the outcomes of species interactions are often site-specific, such studies cannot tell us whether a plant would actually be used by a given insect population if the plant grew sympatrically with it. We therefore performed a quantitative genetics experiment to analyse the performance of larvae of the leaf beetle Oreina elongata Suffrian (Coleoptera: Chrysomelidae, Chrysomelinae) on two host and three non-host plants, collected from a site where insects and plants co-occur in the Western Alps. When raised on the non-host Petasites albus (L.), larvae were able to survive equally well as on the two hosts, Adenostyles alliariae (Gouan) and Cirsium spinosissimum (L.), whereas they did not survive on the two other non-hosts, Peucedanum ostruthium (L.) and Rumex alpinus L. On P. albus, growth rate was slightly lower and development time slightly longer than on the two hosts. We found a genotype by environment interaction only for growth rate but not for development time and survival. However, the shape of the reaction norms of growth rates suggests that it is unlikely that selection could favour the inclusion of P. albus into the host range of the study population.

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Genetic basis for different host use in Epilachna pustulosa, a herbivorous ladybird beetle

Cited by 14 publications

References 40 publications

Genetic architecture for normal and novel host-plant use in two local populations of the herbivorous ladybird beetle, Epilachna pustulosa

Genetic architecture for normal and novel host-plant use in two local populations of the herbivorous ladybird beetle, Epilachna pustulosa

Preference-performance linkage in a herbivorous lady beetle: consequences of variability of natural enemies

Performance of leaf beetle larvae on sympatric host and non‐host plants

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