An attempt to reconstruct the natural and cultural history of the granary weevil, Sitophilus granarius (Coleoptera: Curculionidae)

Plarre, Rudy

doi:10.14411/eje.2010.001

Cited by 68 publications

(62 citation statements)

References 87 publications

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“…Sodalis-allied primary symbiont of Sitophilus weevils: lack of host-symbiont co-speciation The weevil genus Sitophilus, consisting of 14 described species, is known for the notorious pest species S. oryzae, S. zeamais and S. granarius that infest stored crop products such as rice, wheat and maize (Plarre, 2010). The Sodalis-allied primary symbionts of the Sitophilus weevils, often referred to by the acronym SOPE or SPE (after Sitophilus (oryzae) primary endosymbiont), are localized in the midgut-associated bacteriome and also in the female ovaries, vertically transmitted through host generations via ovarial passage, and beneficial for host growth and reproduction (Heddi and Nardon, 2005).…”

Section: Secondary Symbionts Of Curculionini Weevilsmentioning

confidence: 99%

Diversification of endosymbiosis: replacements, co-speciation and promiscuity of bacteriocyte symbionts in weevils

Toju

Tanabe

Yutaka³

et al. 2013

The ISME Journal

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The processes and mechanisms underlying the diversification of host-microbe endosymbiotic associations are of evolutionary interest. Here we investigated the bacteriocyte-associated primary symbionts of weevils wherein the ancient symbiont Nardonella has experienced two independent replacement events: once by Curculioniphilus symbiont in the lineage of Curculio and allied weevils of the tribe Curculionini, and once by Sodalis-allied symbiont in the lineage of grain weevils of the genus Sitophilus. The Curculioniphilus symbiont was detected from 27 of 36 Curculionini species examined, the symbiont phylogeny was congruent with the host weevil phylogeny, and the symbiont gene sequences exhibited AT-biased nucleotide compositions and accelerated molecular evolution. These results suggest that the Curculioniphilus symbiont was acquired by an ancestor of the tribe Curculionini, replaced the original symbiont Nardonella, and has co-speciated with the host weevils over evolutionary time, but has been occasionally lost in several host lineages. By contrast, the Sodalis-allied symbiont of Sitophilus weevils exhibited no host-symbiont co-speciation, no AT-biased nucleotide compositions and only moderately accelerated molecular evolution. These results suggest that the Sodalis-allied symbiont was certainly acquired by an ancestor of the Sitophilus weevils and replaced the original Nardonella symbiont, but the symbiotic association must have experienced occasional re-associations such as new acquisitions, horizontal transfers, replacements and/or losses. We detected Sodalis-allied facultative symbionts in populations of the Curculionini weevils, which might represent potential evolutionary sources of the Sodalis-allied primary symbionts. Comparison of these newcomer bacteriocyte-associated symbiont lineages highlights potential evolutionary trajectories and consequences of novel symbionts after independent replacements of the same ancient symbiont.

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Section: Secondary Symbionts Of Curculionini Weevilsmentioning

confidence: 99%

Diversification of endosymbiosis: replacements, co-speciation and promiscuity of bacteriocyte symbionts in weevils

Toju

Tanabe

Yutaka³

et al. 2013

The ISME Journal

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“…Their Latin names reflect where they were first encountered by taxonomists rather than any inherent food preference. The tamarind weevil (S. linearis) is another related pest of some tropical fruits and seeds, while the rest of the genus consists of 10 species, largely confined to Eurasia and infecting mainly the acorns of oak trees, or a limited range of trees, for example tropical Asian Dipterocarps and tree legumes (Plarre 2010). From an ancestral preference for nuts and tree fruits, three of these species have moved into the human-constructed agricultural niche.…”

Section: Entering the Storage Nichementioning

confidence: 99%

“…These snout-nosed beetles chew cavities into seeds, deposit and seal-in their eggs, from which the larvae emerge and feed on the interior of the grains. In most cases the adult form is dispersed by flight, but S. granarius is entirely flightless and S. oryzae is largely so (Plarre 2010). Panagiotakopulu and Buckland (2017) hypothesize that S. granarius might have originally been adapted to rodent nests, adapting with rodents to stores of grain, however, it seems likely that loss of flight represents evolution through the long association with human storage.…”

Section: Entering the Storage Nichementioning

confidence: 99%

“…In Asia Sitophilus grain pests probably first invaded the agricultural storage niche with tree nuts, perhaps the acorn stores of hunter-gatherers who initiated early cultivation. All three aforementioned weevils also share a preadaptation to this anthropogenic niche in the form of symbiotic bacteria that help them to digest carbohydrates under conditions of very little moisture (Plarre 2010), as characterises cereal stores, which potentially explains why other weevils in this genus never made this transition to storage pests.…”

Section: Entering the Storage Nichementioning

confidence: 99%

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Open for Competition: Domesticates, Parasitic Domesticoids and the Agricultural Niche

Fuller¹,

Stevens²

2017

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This paper explores the relationship of weeds and crop parasites in the domestication of crop-plants within the Old World, drawing predominately on China and the Near East. This relationship is explored using the concept of niche construction in which the act of cultivation sets about chains of feedback in which the ecological worlds of plants and humans became increasingly intertwined resulting in ever increasing spheres of interdependence. Into this domestication entanglement a number of peripheral organisms (termed parasitic domesticoids) were drawn, from the weeds which came to inhabit arable fields, to the insect pests and rodents that came to settle in the grain stores of the first farmers. The evolution and spread of these organisms is then outlined against that of the crop itself.

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“…Infestation by this pest leads to both severe quantitative and qualitative losses (Sauer et al 1984;Rajendran 2002;Magan et al 2003;Plarre 2010). Control of granary weevil is difficult due to the endophytic development of immature stages that are well protected within grains from pesticides, the increasing legislation limits to the use of some fumigants and broad-spectrum contact insecticides, including the worldwide withdrawal from routine use of methyl bromide as a fumigant in 2015 under the directive of the Montreal Protocol on ozone-depleting substances, and the increasing consumer demand for safe food (Phillips and Throne 2010).…”

Section: Introductionmentioning

confidence: 99%

Repellents effectively disrupt the olfactory orientation of Sitophilus granarius to wheat kernels

2015

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Sitophilus granarius (L.) (Coleoptera: Dryophthoridae) is one of the most important pests of stored cereals worldwide. Sustainable control means of this pest are urgently needed mainly owing to legislative limits to the commonly used fumigants and broad-spectrum contact insecticides. The effectiveness of one alcohol and seven aliphatic aldehydes, previously identified as repellents, to disrupt adult granary weevils orientation towards wheat grains were assessed in two-choice olfactometer bioassays. In the dose range tested, all compounds effectively reduced wheat grains attractiveness and inhibited the preferential orientation of adult weevils towards the host substrate. Moreover, at the highest doses the three aldehydes butanal, (E)-2-hexenal, and (E,E)-2,4-nonadienal, their binary (1:1) and the ternary (1:1:1) blends induced a significant preferential orientation of insects to the control, indicating actual repellence. Among all repellent stimuli, the ternary blend and the binary blends of butanal plus (E)-2-hexenal and (E)-2-hexenal plus (E,E)-2,4-nonadienal were the most effective. At certain doses, the observed insect response to these blends was more intense than that expected from individual compounds, demonstrating synergistic interactions between the blend components. Repellent aldehydes and their mixtures were effective in disrupting the olfactory orientation of adult granary weevil to a highly attractive oviposition and food substrate. Future development of proper formulations of these bioactive compounds is promising to set up semiochemical-based control means for this pest.

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An attempt to reconstruct the natural and cultural history of the granary weevil, Sitophilus granarius (Coleoptera: Curculionidae)

Cited by 68 publications

References 87 publications

Diversification of endosymbiosis: replacements, co-speciation and promiscuity of bacteriocyte symbionts in weevils

Diversification of endosymbiosis: replacements, co-speciation and promiscuity of bacteriocyte symbionts in weevils

Open for Competition: Domesticates, Parasitic Domesticoids and the Agricultural Niche

Repellents effectively disrupt the olfactory orientation of Sitophilus granarius to wheat kernels

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