Role of olfaction in Octopus vulgaris reproduction

Polese, Gianluca; Bertapelle, Carla; Cosmo, Anna Di

doi:10.1016/j.ygcen.2014.10.006

Cited by 45 publications

(54 citation statements)

References 82 publications

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“…Octopus shows well‐developed chemotactile memory systems, evolved in relation to its benthic life style (Hanlon and Messenger, ) and visual memory systems (Wells and Young, ; Gutnick et al., ; Di Cosmo and Polese, ; Polese et al., ). It uses the sensory organs to explore the environment and detect visual, tactile, and chemosensory information that are processed in the vertical–frontal system, in optic and olfactory lobes, in order to produce an adequate response (Hanlon and Messenger, ; Di Cosmo and Polese, ; Richter et al., ).…”

Section: Discussionmentioning

confidence: 99%

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Enriched Environment Increases PCNA and PARP1 Levels in Octopus vulgaris Central Nervous System: First Evidence of Adult Neurogenesis in Lophotrochozoa

2017

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Organisms showing a complex and centralized nervous system, such as teleosts, amphibians, reptiles, birds and mammals, and among invertebrates, crustaceans and insects, can adjust their behavior according to the environmental challenges. Proliferation, differentiation, migration, and axonal and dendritic development of newborn neurons take place in brain areas where structural plasticity, involved in learning, memory, and sensory stimuli integration, occurs. Octopus vulgaris has a complex and centralized nervous system, located between the eyes, with a hierarchical organization. It is considered the most "intelligent" invertebrate for its advanced cognitive capabilities, as learning and memory, and its sophisticated behaviors. The experimental data obtained by immunohistochemistry and western blot assay using proliferating cell nuclear antigen and poli (ADP-ribose) polymerase 1 as marker of cell proliferation and synaptogenesis, respectively, reviled cell proliferation in areas of brain involved in learning, memory, and sensory stimuli integration. Furthermore, we showed how enriched environmental conditions affect adult neurogenesis.

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Section: Discussionmentioning

confidence: 99%

“…(, ). It receives fibers from the olfactory organ, through the olfactory nerve (Young, ), and may act as a switch between growth and reproduction (Di Cosmo and Polese ; Polese et al., , ).…”

Section: Discussionmentioning

confidence: 99%

Enriched Environment Increases PCNA and PARP1 Levels in Octopus vulgaris Central Nervous System: First Evidence of Adult Neurogenesis in Lophotrochozoa

2017

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“…Thus, to test the acuity of olfaction in the different postnatal periods in the African grasscutter, spatial distribution of brain-derived neurotrophic factor in the different layers was accessed by immunohistochemistry. The functional significance of the adult olfactory system in reproduction (Polese et al, 2015), emotional response (Mouly and Sullivan, 2010), mate recognition (Keller et al, 2010), predator and prey detection (Johannesen et al, 2014), flavour perception (Trelea et al, 2008), cancer diagnosis (Amundsen et al, 2014) and salmonelosis diagnosis (Mahoney et al, 2014a) has been established. Conversely, the variability in the acuity of olfaction due to age in animal models is yet to be fully investigated.…”

Section: Introductionmentioning

confidence: 99%

Structure of the Main Olfactory Bulb and Immunolocalisation of Brain-Derived Neurotrophic Factor in the Olfactory Layers of the African Grasscutter (Thryonomys swinderianus - Temminck, 1827)

Ibe¹,

Ikpegbu²,

Nlebedum³

2018

AJVS

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Key words:African grasscutter, Brain derived neurotrophic factor, Main olfactory bulb, Mitral cells, olfactory glomerulusThe present study has provided some novel findings on the structure of the olfactory bulb in the African grasscutter, by basic neuro-anatomical technique and immunhistochemical technique, using antibody specific to brain-derived neurotrophic factor. Brain samples extracted from neonates on postnatal day 3, juveniles on postnatal day 72 and adults on postnatal day 450 were utilised for the study. There was a consistent increase in the relative weight of the olfactory bulb with advancement in age, but a significant (P < 0.05) decrease in the relative length from 20.81 ± 0.37 on postnatal day 3 to 17.75 ± 0.45 on postnatal day 72. The concentric lamina organization of the olfactory bulb was evident on postnatal day 3, but the glomerular layer was completely absent. The layer was evident on postnatal days 72 and 450. The mean diameters of each glomerulus on postnatal days 72 and 450 were 86.82 ± 0.25 µm and 117.14 ± 0.32 µm, respectively. The difference was significant (P < 0.05). The zones of the external plexiform layer were undifferentiated on postnatal day 3. There was a decrease in the number of mitral cell layer, but increase in size of each mitral cell, with advancement in age. Brain-derived neurotrophic factor was moderately immunolocalised in the olfactory nerve layer on postnatal day 3, but negative on postnatal days 72 and 450. Cell bodies of the periglomerular short-axon neurones mildly expressed brain-derived neurotrophic factor on postnatal days 72 and 450. The granule cells did not express brain-derived neurotrophic factor on all postnatal periods. The functional significance of the results was discussed.

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“…According to the China fishery statistical yearbook (Zhao 2016), cephalopod landings totalled nearly 0.7 million tonnes in 2015, with an increase of 3.42% over the previous year. Because of the high economic benefits surrounding octopods, many intensive studies have investigated their population genetics (Zheng et al 2009, Meriam et al 2015, Gao et al 2016), behaviour (Meisel et al 2013, Polese et al 2015, Levy et al 2015, Richter et al 2016), neurology (Nixon and Young 2004, Zarrella et al 2015), and reproductive biology (Wada et al 2006, Ebisawa et al 2011, Wang et al 2015b). However, while significant genetic knowledge is required for effective breeding and aquaculture of octopods, modern cytogenetic studies of these species are scarce.…”

Section: Introductionmentioning

confidence: 99%

Comparison of the genetic relationship between nine Cephalopod species based on cluster analysis of karyotype evolutionary distance

Wang¹,

Zheng²

2017

CCG

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Karyotype analysis was carried out on gill cells of three species of octopods using a conventional air-drying method. The karyotype results showed that all the three species have the same diploid chromosome number, 2n=60, but with different karyograms as 2n=38M+6SM+8ST+8T, FN (fundamental number)=104 (Cistopus chinensis Zheng et al., 2012), 2n=42M+6SM+4ST+8T, FN=108 (Octopus minor (Sasaki, 1920)) and 2n=32M+16SM+12T, FN=108 (Amphioctopus fangsiao (d’Orbigny, 1839–1841)). These findings were combined with data from earlier studies to infer the genetic relationships between nine species via cluster analysis using the karyotype evolutionary distance (De) and resemblance-near coefficient (λ). The resulting tree revealed a clear distinction between different families and orders which was substantially consistent with molecular phylogenies. The smallest intraspecific evolutionary distance (De=0.2013, 0.2399) and largest resemblance-near coefficient (λ=0.8184, 0.7871) appeared between O. minor and C. chinensis, and Sepia esculenta Hoyle, 1885 and S. lycidas Gray, 1849, respectively, indicating that these species have the closest relationship. The largest evolutionary gap appeared between species with complicated karyotypes and species with simple karyotypes. Cluster analysis of De and λ provides information to supplement traditional taxonomy and molecular systematics, and it would serve as an important auxiliary for routine phylogenetic study.

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Role of olfaction in Octopus vulgaris reproduction

Cited by 45 publications

References 82 publications

Enriched Environment Increases PCNA and PARP1 Levels in Octopus vulgaris Central Nervous System: First Evidence of Adult Neurogenesis in Lophotrochozoa

Enriched Environment Increases PCNA and PARP1 Levels in Octopus vulgaris Central Nervous System: First Evidence of Adult Neurogenesis in Lophotrochozoa

Structure of the Main Olfactory Bulb and Immunolocalisation of Brain-Derived Neurotrophic Factor in the Olfactory Layers of the African Grasscutter (Thryonomys swinderianus - Temminck, 1827)

Comparison of the genetic relationship between nine Cephalopod species based on cluster analysis of karyotype evolutionary distance

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