Visual thalamotelencephalic pathways in the sturgeon Acipenser, a non-teleost actinopterygian fish.
Identifieur interne : 000658 ( PubMed/Corpus ); précédent : 000657; suivant : 000659Visual thalamotelencephalic pathways in the sturgeon Acipenser, a non-teleost actinopterygian fish.
Auteurs : J S Albert ; N. Yamamoto ; M. Yoshimoto ; N. Sawai ; H. ItoSource :
- Brain, behavior and evolution [ 0006-8977 ] ; 1999.
English descriptors
- KwdEn :
- MESH :
- anatomy & histology : Fishes.
- physiology : Fishes, Telencephalon, Thalamus, Visual Pathways.
- Animals.
Abstract
Terrestrial vertebrates (amphibians, reptiles, birds, and mammals) possess two visual systems, the geniculate and extrageniculate pathways to the telencephalon. In cartilaginous fishes (e.g. sharks) both retinal and tectal neurons project to neurons in the thalamus, which themselves project to a single area in the telencephalon. The condition in ray-finned fishes (Actinopterygii) is ambiguous. In many teleosts there is a well developed extrageniculate pathway but no obvious geniculate system. This study reports on the thalamotelencephalic projections of a sturgeon, a non-teleost ray-finned fish. Several tract tracing methods (e.g., HRP, WGA-HRP, biocytin, BDA, DiI) were employed in conjunction with normal techniques for identifying neural structures (e.g., Nissl, Golgi). After injections of tracer into retinal and tectal recipient areas of the thalamus, labeled terminals were observed in the ventrolateral region of the caudal telencephalon, an area referred to as the thalamic projection area. After injections of tracer into the telencephalon, populations of retrogradely filled neurons were located in both the dorsal and ventral thalamus. These data demonstrate that thalamic neurons in both retinal and tectal pathways project directly to the telencephalon. These results support the view that two visual pathways are a primitive feature of vertebrate brain organization. These results are also consistent with the hypothesis that the ancestor of Acipenser and Teleostei (Actinopteri) acquired a novel visual pathway to the telencephalon through the ventral portion of the thalamus.
DOI: 6591
PubMed: 10085481
Links to Exploration step
pubmed:10085481Le document en format XML
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Ito</name></author></titleStmt><publicationStmt><idno type="wicri:source">PubMed</idno><date when="1999">1999</date><idno type="RBID">pubmed:10085481</idno><idno type="pmid">10085481</idno><idno type="doi">6591</idno><idno type="wicri:Area/PubMed/Corpus">000658</idno><idno type="wicri:explorRef" wicri:stream="PubMed" wicri:step="Corpus" wicri:corpus="PubMed">000658</idno></publicationStmt><sourceDesc><biblStruct><analytic><title xml:lang="en">Visual thalamotelencephalic pathways in the sturgeon Acipenser, a non-teleost actinopterygian fish.</title><author><name sortKey="Albert, J S" sort="Albert, J S" uniqKey="Albert J" first="J S" last="Albert">J S Albert</name><affiliation><nlm:affiliation>Department of Anatomy and Laboratory for Comparative Neuromorphology, Nippon Medical School, Tokyo, Japan. albert@nms.ac.jp</nlm:affiliation></affiliation></author><author><name sortKey="Yamamoto, N" sort="Yamamoto, N" uniqKey="Yamamoto N" first="N" last="Yamamoto">N. Yamamoto</name></author><author><name sortKey="Yoshimoto, M" sort="Yoshimoto, M" uniqKey="Yoshimoto M" first="M" last="Yoshimoto">M. Yoshimoto</name></author><author><name sortKey="Sawai, N" sort="Sawai, N" uniqKey="Sawai N" first="N" last="Sawai">N. Sawai</name></author><author><name sortKey="Ito, H" sort="Ito, H" uniqKey="Ito H" first="H" last="Ito">H. Ito</name></author></analytic><series><title level="j">Brain, behavior and evolution</title><idno type="ISSN">0006-8977</idno><imprint><date when="1999" type="published">1999</date></imprint></series></biblStruct></sourceDesc></fileDesc><profileDesc><textClass><keywords scheme="KwdEn" xml:lang="en"><term>Animals</term><term>Fishes (anatomy & histology)</term><term>Fishes (physiology)</term><term>Telencephalon (physiology)</term><term>Thalamus (physiology)</term><term>Visual Pathways (physiology)</term></keywords><keywords scheme="MESH" qualifier="anatomy & histology" xml:lang="en"><term>Fishes</term></keywords><keywords scheme="MESH" qualifier="physiology" xml:lang="en"><term>Fishes</term><term>Telencephalon</term><term>Thalamus</term><term>Visual Pathways</term></keywords><keywords scheme="MESH" xml:lang="en"><term>Animals</term></keywords></textClass></profileDesc></teiHeader><front><div type="abstract" xml:lang="en">Terrestrial vertebrates (amphibians, reptiles, birds, and mammals) possess two visual systems, the geniculate and extrageniculate pathways to the telencephalon. In cartilaginous fishes (e.g. sharks) both retinal and tectal neurons project to neurons in the thalamus, which themselves project to a single area in the telencephalon. The condition in ray-finned fishes (Actinopterygii) is ambiguous. In many teleosts there is a well developed extrageniculate pathway but no obvious geniculate system. This study reports on the thalamotelencephalic projections of a sturgeon, a non-teleost ray-finned fish. Several tract tracing methods (e.g., HRP, WGA-HRP, biocytin, BDA, DiI) were employed in conjunction with normal techniques for identifying neural structures (e.g., Nissl, Golgi). After injections of tracer into retinal and tectal recipient areas of the thalamus, labeled terminals were observed in the ventrolateral region of the caudal telencephalon, an area referred to as the thalamic projection area. After injections of tracer into the telencephalon, populations of retrogradely filled neurons were located in both the dorsal and ventral thalamus. These data demonstrate that thalamic neurons in both retinal and tectal pathways project directly to the telencephalon. These results support the view that two visual pathways are a primitive feature of vertebrate brain organization. These results are also consistent with the hypothesis that the ancestor of Acipenser and Teleostei (Actinopteri) acquired a novel visual pathway to the telencephalon through the ventral portion of the thalamus.</div></front></TEI><pubmed><MedlineCitation Status="MEDLINE" Owner="NLM"><PMID Version="1">10085481</PMID><DateCreated><Year>1999</Year><Month>05</Month><Day>06</Day></DateCreated><DateCompleted><Year>1999</Year><Month>05</Month><Day>06</Day></DateCompleted><DateRevised><Year>2006</Year><Month>04</Month><Day>04</Day></DateRevised><Article PubModel="Print"><Journal><ISSN IssnType="Print">0006-8977</ISSN><JournalIssue CitedMedium="Print"><Volume>53</Volume><Issue>3</Issue><PubDate><Year>1999</Year></PubDate></JournalIssue><Title>Brain, behavior and evolution</Title><ISOAbbreviation>Brain Behav. Evol.</ISOAbbreviation></Journal><ArticleTitle>Visual thalamotelencephalic pathways in the sturgeon Acipenser, a non-teleost actinopterygian fish.</ArticleTitle><Pagination><MedlinePgn>156-72</MedlinePgn></Pagination><Abstract><AbstractText>Terrestrial vertebrates (amphibians, reptiles, birds, and mammals) possess two visual systems, the geniculate and extrageniculate pathways to the telencephalon. In cartilaginous fishes (e.g. sharks) both retinal and tectal neurons project to neurons in the thalamus, which themselves project to a single area in the telencephalon. The condition in ray-finned fishes (Actinopterygii) is ambiguous. In many teleosts there is a well developed extrageniculate pathway but no obvious geniculate system. This study reports on the thalamotelencephalic projections of a sturgeon, a non-teleost ray-finned fish. Several tract tracing methods (e.g., HRP, WGA-HRP, biocytin, BDA, DiI) were employed in conjunction with normal techniques for identifying neural structures (e.g., Nissl, Golgi). After injections of tracer into retinal and tectal recipient areas of the thalamus, labeled terminals were observed in the ventrolateral region of the caudal telencephalon, an area referred to as the thalamic projection area. After injections of tracer into the telencephalon, populations of retrogradely filled neurons were located in both the dorsal and ventral thalamus. These data demonstrate that thalamic neurons in both retinal and tectal pathways project directly to the telencephalon. These results support the view that two visual pathways are a primitive feature of vertebrate brain organization. These results are also consistent with the hypothesis that the ancestor of Acipenser and Teleostei (Actinopteri) acquired a novel visual pathway to the telencephalon through the ventral portion of the thalamus.</AbstractText></Abstract><AuthorList CompleteYN="Y"><Author ValidYN="Y"><LastName>Albert</LastName><ForeName>J S</ForeName><Initials>JS</Initials><AffiliationInfo><Affiliation>Department of Anatomy and Laboratory for Comparative Neuromorphology, Nippon Medical School, Tokyo, Japan. albert@nms.ac.jp</Affiliation></AffiliationInfo></Author><Author ValidYN="Y"><LastName>Yamamoto</LastName><ForeName>N</ForeName><Initials>N</Initials></Author><Author ValidYN="Y"><LastName>Yoshimoto</LastName><ForeName>M</ForeName><Initials>M</Initials></Author><Author ValidYN="Y"><LastName>Sawai</LastName><ForeName>N</ForeName><Initials>N</Initials></Author><Author ValidYN="Y"><LastName>Ito</LastName><ForeName>H</ForeName><Initials>H</Initials></Author></AuthorList><Language>eng</Language><PublicationTypeList><PublicationType UI="D016428">Journal Article</PublicationType></PublicationTypeList></Article><MedlineJournalInfo><Country>Switzerland</Country><MedlineTA>Brain Behav Evol</MedlineTA><NlmUniqueID>0151620</NlmUniqueID><ISSNLinking>0006-8977</ISSNLinking></MedlineJournalInfo><CitationSubset>IM</CitationSubset><MeshHeadingList><MeshHeading><DescriptorName UI="D000818" MajorTopicYN="N">Animals</DescriptorName></MeshHeading><MeshHeading><DescriptorName UI="D005399" MajorTopicYN="N">Fishes</DescriptorName><QualifierName UI="Q000033" MajorTopicYN="Y">anatomy & histology</QualifierName><QualifierName UI="Q000502" MajorTopicYN="Y">physiology</QualifierName></MeshHeading><MeshHeading><DescriptorName UI="D013687" MajorTopicYN="N">Telencephalon</DescriptorName><QualifierName UI="Q000502" MajorTopicYN="Y">physiology</QualifierName></MeshHeading><MeshHeading><DescriptorName UI="D013788" MajorTopicYN="N">Thalamus</DescriptorName><QualifierName UI="Q000502" MajorTopicYN="Y">physiology</QualifierName></MeshHeading><MeshHeading><DescriptorName UI="D014795" MajorTopicYN="N">Visual Pathways</DescriptorName><QualifierName UI="Q000502" MajorTopicYN="Y">physiology</QualifierName></MeshHeading></MeshHeadingList></MedlineCitation><PubmedData><History><PubMedPubDate PubStatus="pubmed"><Year>1999</Year><Month>3</Month><Day>23</Day><Hour>3</Hour><Minute>2</Minute></PubMedPubDate><PubMedPubDate PubStatus="medline"><Year>2000</Year><Month>8</Month><Day>16</Day><Hour>11</Hour><Minute>0</Minute></PubMedPubDate><PubMedPubDate PubStatus="entrez"><Year>1999</Year><Month>3</Month><Day>23</Day><Hour>3</Hour><Minute>2</Minute></PubMedPubDate></History><PublicationStatus>ppublish</PublicationStatus><ArticleIdList><ArticleId IdType="pubmed">10085481</ArticleId><ArticleId IdType="pii">6591</ArticleId><ArticleId IdType="doi">6591</ArticleId></ArticleIdList></PubmedData></pubmed></record>Pour manipuler ce document sous Unix (Dilib)
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