Adaptation to a new host plant, <i>Centrosema pubescens</i> (Fabales: Leguminosae), by the phytophagous ladybird beetle, <i>Epilachna vigintioctopunctata</i> (Coleoptera: Coccinellidae), in tropical Asia

Shirai, Yoichi; Katakura, Haruo

doi:10.1007/pl00011991

Cited by 7 publications

(5 citation statements)

References 23 publications

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“…Finally, the origin of the ability of H. vigintioctopunctata to use centro should also be elucidated in future studies. Until 2013, the utilization of centro by H. vigintioctopunctata has been observed at the southernmost part of Thailand and many parts of Indonesia including northern Sumatra, East Java, Bali, (West, Central, and East) Kalimantan, and South Sulawesi (H. Katakura et al ., unpublished data), as well as at Peninsular Malaysia, West Sumatra, and West and Central Java as reported in the previous studies (Nishida et al ; Shirai & Katakura ; Katakura et al ). On the other hand, H. vigintioctopunctata populations on centro were not found at North Sulawesi (H. Katakura et al ., unpublished data), and at the eastern islands of Indonesia, that is, Lombok, Sumbawa, Flores, and Timor (Fujiyama et al ).…”

Section: Discussionsupporting

confidence: 80%

“…(formerly referred to as C. pubescens , cf. Fantz ; Schultze‐Kraft ), have been found at West and Central Java, and West Sumatra in Indonesia, and Peninsular Malaysia (Nishida et al ; Shirai & Katakura ; Katakura et al ). Nishida et al () reported that adult beetles collected on solanaceous hosts exclusively preferred S. torvum over centro to feed, whereas those collected on centro showed some degree of acceptance of centro.…”

Section: Introductionmentioning

confidence: 99%

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A solanum beetle on a fabaceous weed: Host plant generalization and specialization are two sides of the same coin

Ueno

Fujiyama

Kahono

et al. 2017

Entomological Science

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Investigations of the ongoing evolutionary change of host specificity, especially of that in the initial phase, contribute largely to our understanding of the mechanisms responsible for the diversification of phytophagous insects. However, empirical studies of this aspect in natural systems are very scanty. In the present study, we document the evolutionary change of the degree of adaptation to an introduced legume centro by adults and larvae of the herbivorous ladybird beetle Henosepilachna vigintioctopunctata (Fabricius), which depends normally on various solanaceous plants. Results obtained through experiments conducted in seven successive years revealed a fluctuating degree of adaptation, but with a gradual increase, to centro by H. vigintioctopunctata, showing a tendency towards host plant generalization. Of particular importance, our results suggest that both host plant specialization and generalization are possible evolutionary outcomes of a dynamic initial phase of ongoing host range expansion. In addition, results of quantitative genetic analyses on larval development and other circumstantial evidence suggested that the evolutionary trajectories to specialization/generalization are largely determined by ecological conditions rather than by the insects' intrinsic genetic architecture. We also discuss some special aspects of acquisition of, and adaptation to, novel hosts by H. vigintioctopunctata and other herbivorous beetles, of which adults also feed on plant leaves.

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Section: Discussionsupporting

confidence: 80%

Section: Introductionmentioning

confidence: 99%

A solanum beetle on a fabaceous weed: Host plant generalization and specialization are two sides of the same coin

Ueno

Fujiyama

Kahono

et al. 2017

Entomological Science

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“…(Fabaceae) (Nishida et al . ; Shirai & Katakura ; N. Fujiyama, personal communication). As these adaptive changes occur rapidly in response to changes in the environment (Singer et al .…”

Section: Introductionmentioning

confidence: 98%

Deep phylogeographical structure and parallel host range evolution in the leaf beetle Agelasa nigriceps

2013

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To understand the mechanisms behind the diversification of herbivorous insects through insect-plant interactions, it is important to know how the insects change their diet breadth in response to environmental changes. In this study, we investigated the phylogeographical pattern of the leaf beetle Agelasa nigriceps to infer the evolutionary history of its host range. While this beetle commonly uses Actinidia arguta (Actinidiaceae) as a host plant, it has been recorded recently on Pterostyrax hispidus (Styracaceae), which is now increasing in abundance at some localities in Japan due to the indirect effects of high population size of a mammalian herbivore. Considerable variation among populations in the ability of Ag. nigriceps to use P. hispidus suggests that P. hispidus is a newly acquired host plant for this beetle. Phylogenetic analyses using mitochondrial DNA sequences and amplified fragment length polymorphism (AFLP) revealed a high degree of phylogeographical structure in Ag. nigriceps throughout Japan, which is consistent with the hypothesis that several glacial refugia existed in the Japanese archipelago. In contrast, no genetic structure associated with the host plants was detected. Both the mitochondrial DNA and AFLP analyses showed that populations that can use P. hispidus are polyphyletic. These results and geographical variation in host use suggest that the host range expansion to a novel host, P. hispidus, is a very recent and possibly ongoing phenomenon and has occurred independently in several regions. Our study illustrates that the host range of herbivorous insects can evolve repeatedly in response to similar environmental changes.

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“…(Fabaceae) (hereafter referred to as centro) (Nishida et al . 1997; Shirai & Katakura 2000; Katakura et al . 2001).…”

Section: Introductionmentioning

confidence: 99%

“…However, at several locations in Southeast Asia, including Java, H. vigintioctopunctata also occurs on an introduced weed Centrosema molle Benth. (Fabaceae) (hereafter referred to as centro) (Nishida et al 1997;Shirai & Katakura 2000;Katakura et al 2001). In a previous study, we had documented the yearly changes in the degree of adaptation to the novel host centro with respect to adult feeding preference and larval developmental performance of a population of H. vigintioctopunctata occurring on both S. torvum and centro at Bogor, West Java (Ueno et al 2017; see also Nishida et al 1997).…”

Section: Introductionmentioning

confidence: 99%

A solanum beetle on a fabaceous weed: Possible rapid progress of adaptation to a novel host‐plant in a geographical context

Fujiyama

Ueno

Kahono³

et al. 2023

Entomological Science

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Our knowledge on how the local distribution pattern of ordinary and novel hosts promotes or hinders the progress of adaptation to the novel hosts by phytophagous insects is limited. The herbivorous ladybird beetle Henosepilachna vigintioctopunctata (Coleoptera: Coccinellidae) depends mainly on solanaceous plants as hosts; the major wild host of this beetle species in Java, Indonesia, is Solanum torvum. However, in several regions of Southeast Asia, including Java, H. vigintioctopunctata also occurs on the introduced fabaceous weed, Centrosema molle. Circumstantial evidence indicates that the use of C. molle by beetles became frequent in the very early 2000s in East Java. In the present study, based on laboratory and field data obtained from 2003 to 2005, we evaluated the degree of adaptation to C. molle by H. vigintioctopunctata populations from East Java and documented the geographic pattern of host‐plant distribution in East Java. Laboratory experiments revealed that the beetles from East Java possessed the highest degree of adaptation to C. molle among the beetle populations thus far investigated, suggesting that the adaptation to C. molle by beetles proceeded quite rapidly in East Java in the early 2000s. Meanwhile, field surveys showed that the habitats in East Java consisted of mosaics with sites where only C. molle was distributed and sites where C. molle and solanaceous plants co‐occurred. We discussed the role of such geographical structure of habitats in promoting the rapid adaptation of H. vigintioctopunctata to C. molle in East Java.

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Adaptation to a new host plant, Centrosema pubescens (Fabales: Leguminosae), by the phytophagous ladybird beetle, Epilachna vigintioctopunctata (Coleoptera: Coccinellidae), in tropical Asia

Cited by 7 publications

References 23 publications

A solanum beetle on a fabaceous weed: Host plant generalization and specialization are two sides of the same coin

A solanum beetle on a fabaceous weed: Host plant generalization and specialization are two sides of the same coin

Deep phylogeographical structure and parallel host range evolution in the leaf beetle Agelasa nigriceps

A solanum beetle on a fabaceous weed: Possible rapid progress of adaptation to a novel host‐plant in a geographical context

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