Structure of the mushroom bodies in Scarabaeoidea (Insecta: Coleoptera): 1. Basal families and coprophagous scarabaeidae

Panov, A. A.

doi:10.1134/s1062359010050109

Cited by 6 publications

(6 citation statements)

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“…Most of the vertical lobe is formed by a sleeve neuropil, semicircle or crescent shaped in cross section, and two shafts, rounded in cross section and adjoining the sleeve dorsolaterally. In the apical part of the lobe, the shafts diverge from the sleeve dorsolaterally into the neuropil of the protocer ebrum, forming a "horn" similar to that described in other Coleoptera (Panov, 2010a(Panov, , 2010b(Panov, , 2011. The very apex of the vertical lobe consists of the sleeve neu ropil.…”

Section: Resultsmentioning

confidence: 88%

“…Study of the morphology of mushroom bodies in different leaf beetle species revealed a high level of diversity in the degree of mushroom body develop ment, comparable to that found in scarabaeoid beetles (Panov, 2010a(Panov, , 2010b and longicorn beetles (Panov, 2011). Two principal groups of leaf beetles can be rec ognized, with well developed and with poorly devel oped mushroom bodies, as well as a third, small group, with moderately developed mushroom bodies.…”

Section: Resultsmentioning

confidence: 91%

“…Thus, these neuroblasts did not form a single center of cell proliferation and were similar to ordinary single neu roblasts. We found earlier in the lower Scarabaeoidea (Panov, 2010a) and Cerambycidae (Panov, 2011) a peculiar structure in the peduncular apparatus, called a "horn." This horn is the apical or subapical part of the vertical lobe neuropil corresponding to the shafts of the peduncle and lobes in P. marginata (Larsson et al, 2004).…”

Section: Resultsmentioning

confidence: 98%

“…33, Moscow, 119071 Russia e mail: tortrix@yandex.ru lication (Melnikova and Panov, 1987). Sections were stained and digital images obtained and processed as in our studies of mushroom bodies in other taxa of Coleoptera (Panov, 2010a).…”

Section: A a Panovmentioning

confidence: 99%

“…It has been found recently that mushroom bodies also reach high levels of complexity in Coleoptera (Larsson et al, 2004;Zhao et al, 2008); in Scarabae oidea and Cerambycidae, general morphobiological progress is accompanied by a substantial increase in the complexity of the mushroom body structure (Panov, 2010a(Panov, , 2010b(Panov, , 2011. In view of this, leaf bee tles, closely related in origin to Cerambycidae and included together with them in the superfamily Chry someloidea, are of considerable interest.…”

Section: Introductionmentioning

confidence: 98%

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Leaf beetles (Coleoptera: Chrysomelidae): Mushroom body simplification in the course of progressive evolution of the family

Panov

2012

Biol Bull Russ Acad Sci

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Members of different subfamilies of Chrysomelidae differ strongly in the degree of mushroom body development. The mushroom bodies are especially strongly developed (with the calyx in the form of large cups and double shafts of the peduncular apparatus) in the evolutionarily primitive subfamilies Sagrinae and Criocerinae, and considerably reduced in members of more evolved subfamilies, with the calyx region weakly developed and shafts of the peduncular apparatus fused together. It is suggested that this mushroom body reduction can be related to the closer connection of the head with the prothorax, which is found in the more evolved leaf beetle subfamilies.

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Section: Resultsmentioning

confidence: 88%

Section: Resultsmentioning

confidence: 91%

Section: Resultsmentioning

confidence: 98%

Section: A a Panovmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 98%

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Leaf beetles (Coleoptera: Chrysomelidae): Mushroom body simplification in the course of progressive evolution of the family

Panov

2012

Biol Bull Russ Acad Sci

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Visual inputs to the mushroom body calyces of the whirligig beetle Dineutus sublineatus: Modality switching in an insect

Lin,

Strausfeld

2012

J of Comparative Neurology

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The mushroom bodies are prominent lobed centers in the forebrain, or protocerebrum, of most insects. Previous studies on mushroom bodies have focused on higher olfactory processing, including olfactory‐based learning and memory. Anatomical studies provide strong support that in terrestrial insects with mushroom bodies, the primary input region, or calyces, are predominantly supplied by olfactory projection neurons from the antennal lobe glomeruli. In aquatic species that generally lack antennal lobes, the calyces are vestigial or absent. Here we report an exception to this in the whirligig beetle Dineutus sublineatus (Coleoptera: Gyrinidae). This aquatic species lives on water and is equipped with two separate pairs of compound eyes, one pair viewing above and one viewing below the water surface. As in other aquatic insects, the whirligig beetle lacks antennal lobes, but unlike other aquatic insects its mushroom bodies possess robust calyces. Golgi impregnations and fluorescent tracer injections revealed that the calyces are exclusively supplied by visual neurons from the medulla of the dorsal eye optic lobes. No other sensory inputs reach the calyces, thereby showing a complete switch of calyx modality from olfaction to vision. Potential functions of the mushroom bodies of D. sublineatus are discussed in the context of the behavioral ecology of whirligig beetles. J. Comp. Neurol. 520:2562–2574, 2012. © 2012 Wiley Periodicals, Inc.

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Visual inputs to the mushroom body calyces of the whirligig beetle Dineutus sublineatus: Modality switching in an insect

Lin

Strausfeld

2012

J of Comparative Neurology

View full text Add to dashboard Cite

The mushroom bodies are prominent lobed centers in the forebrain, or protocerebrum, of most insects. Previous studies on mushroom bodies have focused on higher olfactory processing, including olfactory-based learning and memory. Anatomical studies provide strong support that in terrestrial insects with mushroom bodies, the primary input region, or calyces, are predominantly supplied by olfactory projection neurons from the antennal lobe glomeruli. In aquatic species that generally lack antennal lobes, the calyces are vestigial or absent. Here we report an exception to this in the whirligig beetle Dineutus sublineatus (Coleoptera: Gyrinidae). This aquatic species lives on water and is equipped with two separate pairs of compound eyes, one pair viewing above and one viewing below the water surface. As in other aquatic insects, the whirligig beetle lacks antennal lobes, but unlike other aquatic insects its mushroom bodies possess robust calyces. Golgi impregnations and fluorescent tracer injections revealed that the calyces are exclusively supplied by visual neurons from the medulla of the dorsal eye optic lobes. No other sensory inputs reach the calyces, thereby showing a complete switch of calyx modality from olfaction to vision. Potential functions of the mushroom bodies of D. sublineatus are discussed in the context of the behavioral ecology of whirligig beetles.

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Structure of the mushroom bodies in Scarabaeoidea (Insecta: Coleoptera): 1. Basal families and coprophagous scarabaeidae

Cited by 6 publications

References 9 publications

Leaf beetles (Coleoptera: Chrysomelidae): Mushroom body simplification in the course of progressive evolution of the family

Leaf beetles (Coleoptera: Chrysomelidae): Mushroom body simplification in the course of progressive evolution of the family

Visual inputs to the mushroom body calyces of the whirligig beetle Dineutus sublineatus: Modality switching in an insect

Visual inputs to the mushroom body calyces of the whirligig beetle Dineutus sublineatus: Modality switching in an insect

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