Embryonic development of a centralised brain in coleoid cephalopods
Abstract The last common ancestor of cephalopods and vertebrates lived about 580 million years ago, yet coleoid cephalopods, comprising squid, cuttlefish and octopus, have evolved an extraordinary behavioural repertoire that includes learned behaviour and tool utilization. These animals also develop...
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| Format: | Article |
| Language: | English |
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BMC
2024-06-01
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| Series: | Neural Development |
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| Online Access: | https://doi.org/10.1186/s13064-024-00186-2 |
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| author | Ali M. Elagoz Marie Van Dijck Mark Lassnig Eve Seuntjens |
| author_facet | Ali M. Elagoz Marie Van Dijck Mark Lassnig Eve Seuntjens |
| author_sort | Ali M. Elagoz |
| collection | DOAJ |
| description | Abstract The last common ancestor of cephalopods and vertebrates lived about 580 million years ago, yet coleoid cephalopods, comprising squid, cuttlefish and octopus, have evolved an extraordinary behavioural repertoire that includes learned behaviour and tool utilization. These animals also developed innovative advanced defence mechanisms such as camouflage and ink release. They have evolved unique life cycles and possess the largest invertebrate nervous systems. Thus, studying coleoid cephalopods provides a unique opportunity to gain insights into the evolution and development of large centralised nervous systems. As non-model species, molecular and genetic tools are still limited. However, significant insights have already been gained to deconvolve embryonic brain development. Even though coleoid cephalopods possess a typical molluscan circumesophageal bauplan for their central nervous system, aspects of its development are reminiscent of processes observed in vertebrates as well, such as long-distance neuronal migration. This review provides an overview of embryonic coleoid cephalopod research focusing on the cellular and molecular aspects of neurogenesis, migration and patterning. Additionally, we summarize recent work on neural cell type diversity in embryonic and hatchling cephalopod brains. We conclude by highlighting gaps in our knowledge and routes for future research. |
| format | Article |
| id | doaj-art-0c8fb81262484d9fb118baf3dc3d8ea7 |
| institution | Kabale University |
| issn | 1749-8104 |
| language | English |
| publishDate | 2024-06-01 |
| publisher | BMC |
| record_format | Article |
| series | Neural Development |
| spelling | doaj-art-0c8fb81262484d9fb118baf3dc3d8ea72024-11-10T12:37:59ZengBMCNeural Development1749-81042024-06-0119111610.1186/s13064-024-00186-2Embryonic development of a centralised brain in coleoid cephalopodsAli M. Elagoz0Marie Van Dijck1Mark Lassnig2Eve Seuntjens3Laboratory of Developmental Neurobiology, Department of Biology, KU LeuvenLaboratory of Developmental Neurobiology, Department of Biology, KU LeuvenLaboratory of Developmental Neurobiology, Department of Biology, KU LeuvenLaboratory of Developmental Neurobiology, Department of Biology, KU LeuvenAbstract The last common ancestor of cephalopods and vertebrates lived about 580 million years ago, yet coleoid cephalopods, comprising squid, cuttlefish and octopus, have evolved an extraordinary behavioural repertoire that includes learned behaviour and tool utilization. These animals also developed innovative advanced defence mechanisms such as camouflage and ink release. They have evolved unique life cycles and possess the largest invertebrate nervous systems. Thus, studying coleoid cephalopods provides a unique opportunity to gain insights into the evolution and development of large centralised nervous systems. As non-model species, molecular and genetic tools are still limited. However, significant insights have already been gained to deconvolve embryonic brain development. Even though coleoid cephalopods possess a typical molluscan circumesophageal bauplan for their central nervous system, aspects of its development are reminiscent of processes observed in vertebrates as well, such as long-distance neuronal migration. This review provides an overview of embryonic coleoid cephalopod research focusing on the cellular and molecular aspects of neurogenesis, migration and patterning. Additionally, we summarize recent work on neural cell type diversity in embryonic and hatchling cephalopod brains. We conclude by highlighting gaps in our knowledge and routes for future research.https://doi.org/10.1186/s13064-024-00186-2Coleoid CephalopodsEmbryogenesisNeurogenesisNeuronal MigrationNeural Cell TypesInvertebrate Neurogenesis |
| spellingShingle | Ali M. Elagoz Marie Van Dijck Mark Lassnig Eve Seuntjens Embryonic development of a centralised brain in coleoid cephalopods Neural Development Coleoid Cephalopods Embryogenesis Neurogenesis Neuronal Migration Neural Cell Types Invertebrate Neurogenesis |
| title | Embryonic development of a centralised brain in coleoid cephalopods |
| title_full | Embryonic development of a centralised brain in coleoid cephalopods |
| title_fullStr | Embryonic development of a centralised brain in coleoid cephalopods |
| title_full_unstemmed | Embryonic development of a centralised brain in coleoid cephalopods |
| title_short | Embryonic development of a centralised brain in coleoid cephalopods |
| title_sort | embryonic development of a centralised brain in coleoid cephalopods |
| topic | Coleoid Cephalopods Embryogenesis Neurogenesis Neuronal Migration Neural Cell Types Invertebrate Neurogenesis |
| url | https://doi.org/10.1186/s13064-024-00186-2 |
| work_keys_str_mv | AT alimelagoz embryonicdevelopmentofacentralisedbrainincoleoidcephalopods AT marievandijck embryonicdevelopmentofacentralisedbrainincoleoidcephalopods AT marklassnig embryonicdevelopmentofacentralisedbrainincoleoidcephalopods AT eveseuntjens embryonicdevelopmentofacentralisedbrainincoleoidcephalopods |