Evidence of Aggregation–Sex Pheromone Use by Longhorned Beetles (Coleoptera: Cerambycidae) Species Native to Africa

Bobadoye, Bridget O; Torto, Baldwyn; Fombong, Ayuka T.; Zou, Yunfan; Adlbauer, Karl; Hanks, Lawrence M.; Millar, Jocelyn G.

doi:10.1093/ee/nvy164

Cited by 9 publications

(6 citation statements)

References 16 publications

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“…The main reason for the widespread use of pheromone‐baited traps is the highly conserved chemistry of pheromones among related longhorn beetle species. Similar or identical pheromones attract multiple species across genera, tribes and occasionally subfamilies (Allison et al ., 2004; Hanks & Millar, 2016; Millar & Hanks, 2017), and this trend is valid for both sympatric species (Sweeney et al ., 2014; Wickham et al ., 2014; Ray et al ., 2015; Miller et al ., 2017) and species native to different continents (Diesel et al ., 2017; Bobadoye et al ., 2018; Boone et al ., 2019; Millar et al ., 2019). Thus, a trap baited with one pheromone enables the detection of a multitude of species (Mitchell et al ., 2011; Hayes et al ., 2016; Millar et al ., 2018) whose number and diversity can be further increased by combining multiple pheromones or pheromones and host‐volatiles on the same trap (Hanks et al ., 2012, 2018; Wong et al ., 2012; Collignon et al ., 2016; Molander & Larsson, 2018; Fan et al ., 2019; Flaherty et al ., 2019; Rassati et al ., 2019).…”

Section: Introductionmentioning

confidence: 99%

Response of native and exotic longhorn beetles to common pheromone components provides partial support for the pheromone‐free space hypothesis

et al. 2020

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Longhorn beetles are among the most important groups of invasive forest insects worldwide. In parallel, they represent one of the most well-studied insect groups in terms of chemical ecology. Longhorn beetle aggregation-sex pheromones are commonly used as trap lures for specific and generic surveillance programs at points of entry and may play a key role in determining the success or failure of exotic species establishment. An exotic species might be more likely to establish in a novel habitat if it relies on a pheromone channel that is different to that of native species active at the same time of year and day, allowing for unhindered mate location (i.e., pheromone-free space hypothesis). In this study, we first tested the attractiveness of single pheromone components (i.e., racemic 3-hydroxyhexan-2-one, racemic 3-hydroxyoctan-2-one, and syn-2,3-hexanediol), and their binary and tertiary combinations, to native and exotic longhorn beetle species in Canada and Italy. Second, we exploited trap catches to determine their seasonal flight activity. Third, we used pheromone-baited "timer traps" to determine longhorn beetle daily flight activity. The response to single pheromones and their combinations was mostly species specific but the combination of more than one pheromone component allowed catch of multiple species simultaneously in Italy. The response of the exotic species to pheromone components, coupled with results on seasonal and daily flight activity, provided partial support for the pheromone-free space hypothesis. This study aids in the understanding of longhorn beetle chemical ecology and confirms that pheromones can play a key role in longhorn beetle invasions.

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Section: Introductionmentioning

confidence: 99%

Response of native and exotic longhorn beetles to common pheromone components provides partial support for the pheromone‐free space hypothesis

et al. 2020

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“…As a consequence of these shared pheromones, traps baited with single compounds or blends of similar components may attract multiple cerambycid species simultaneously. This pattern has now been observed in field bioassays carried out on different continents (e.g., Asia: Sweeney et al, ; Wickham et al, ; Africa: Bobadoye et al, ; Australia: Hayes et al, ; Europe: Flaherty et al, ; Rassati et al, ; North America: Millar et al, ), and it can be exploited in surveillance programs for detecting quarantine pests (Fan et al, ). This parsimony also implies that identification of pheromone components for one cerambycid species may subsequently expedite the identification of pheromones or likely pheromones for related target species (Millar et al, , ).…”

Section: Introductionmentioning

confidence: 84%

Enantiomers of fuscumol acetate comprise the aggregation‐sex pheromone of the South American cerambycid beetle Psapharochrus maculatissimus, and likely pheromones of the cerambycids Eupromerella plaumanni and Hylettus seniculus

Silva

Zou

Hanks

et al. 2019

Entomologia Exp Applicata

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There is increasing evidence that pheromone chemistry within the large coleopteran family Cerambycidae is often highly conserved, with numerous related species sharing the same pheromone components. As a result, traps containing these components can attract multiple cerambycid species simultaneously. In the present study, we exploited this concept in the identification of the male‐produced aggregation‐sex pheromone of the South American species Psapharochrus maculatissimus (Bates) (Coleoptera: Cerambycidae, subfamily Lamiinae, tribe Acanthoderini). Initially, live adults of both sexes were caught using a trap baited with a lure containing a blend of known cerambycid pheromone components. Headspace volatiles were collected from live beetles and analyzed by coupled gas chromatography‐mass spectrometry. Males of P. maculatissimus sex‐specifically produced a 1:38 blend of (R)‐fuscumol acetate ([2R,5E]‐6,10‐dimethylundeca‐5,9‐dien‐2‐yl acetate) and (S)‐fuscumol acetate, which were both components of the pheromone lures to which they had been attracted. In more focused field trials, traps baited with the (S)‐enantiomer, or a blend approximating the natural 1:38 ratio of (R)‐ to (S)‐enantiomers, attracted adults of both sexes in approximately equal numbers. During bioassays, adults of the lamiine species Eupromerella plaumanni (Fuchs) (tribe Acanthoderini) and Hylettus seniculus (Germar) (Acanthocinini) also were attracted, but to different lures, with E. plaumanni being attracted to the racemic mixture of the two enantiomers of fuscumol acetate, whereas H. seniculus was attracted specifically to (R)‐fuscumol acetate. Our results suggest that differences between these sympatric species in the stereochemistry of fuscumol acetate impart species‐specificity to pheromone communication channels, similar to what has been found recently with lamiine species from other continents.

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Section: Discussionmentioning

confidence: 99%

“…Thus, screening bioassays testing compounds with this structural motif, carried out in different geographic regions and habitats and at different times of the year, may show attraction of additional species. This approach has the potential to expedite identification of the pheromones of further species in the Cerambycinae, as has been the case in analogous field trials with compounds such as short‐chain 3‐hydroxyalkan‐2‐ones (Bobadoye et al, 2019; Hanks & Millar, 2013; Sweeney et al, 2014). Whereas only one other cerambycid (the lepturine X. crassipes mentioned above) was significantly attracted to the pheromone treatments in our bioassays in Sweden and California, the field trials described here were limited both spatially and temporally.…”

Section: Discussionmentioning

confidence: 99%

p‐Mentha‐1,3‐dien‐9‐ol: A novel aggregation‐sex pheromone for monitoring longhorn beetles (Cerambycidae) in Eurasia and North America

Molander

Eriksson

Arriola

et al. 2022

J Applied Entomology

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Longhorn beetles (Cerambycidae) are a diverse family of beetles that can cause considerable damage as forest pests and vectors of pathogens, as well as being important components of forest food webs and ecosystem functionality. In recent years, numerous cerambycid pheromones have been identified, revealing some broad general patterns in functionality in terms of sex or aggregation‐sex pheromones in different subfamilies and different types of compounds characterizing the pheromones of various cerambycid taxa. Here, we describe the identification of the aggregation‐sex pheromones of the Eurasian longhorn beetle Aromia moschata moschata (L.) (Cerambycinae; tribe Callichromatini) and the North American species Holopleura marginata LeConte (Cerambycinae; Holopleurini), as part of an ongoing effort to extend the taxonomic coverage of identified cerambycid pheromones and to expand the prospects for cerambycid monitoring into the study of biodiversity and ecosystem services. Both species were found to use the novel pheromone compound p‐mentha‐1,3‐dien‐9‐ol, which also attracted significant numbers of the longhorn beetle Xestoleptura crassipes (LeConte) (Lepturinae; Lepturini) in trials in California. p‐Mentha‐1,3‐dien‐9‐ol represents a class of pheromone compounds novel to both tribes (Callichromatini and Holopleurini), further increasing the chemical space of identified pheromones within the subfamily Cerambycinae. This compound is also noteworthy because it represents an entirely different chemical class of pheromones than the monoepoxide (E)‐2‐cis‐6,7‐epoxynonenal, previously reported as an aggregation‐sex pheromone for the invasive Asian congener Aromia bungii (Faldermann).

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Evidence of Aggregation–Sex Pheromone Use by Longhorned Beetles (Coleoptera: Cerambycidae) Species Native to Africa

Cited by 9 publications

References 16 publications

Response of native and exotic longhorn beetles to common pheromone components provides partial support for the pheromone‐free space hypothesis

Response of native and exotic longhorn beetles to common pheromone components provides partial support for the pheromone‐free space hypothesis

Enantiomers of fuscumol acetate comprise the aggregation‐sex pheromone of the South American cerambycid beetle Psapharochrus maculatissimus, and likely pheromones of the cerambycids Eupromerella plaumanni and Hylettus seniculus

p‐Mentha‐1,3‐dien‐9‐ol: A novel aggregation‐sex pheromone for monitoring longhorn beetles (Cerambycidae) in Eurasia and North America

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