NDLI: Lungfishes, Like Tetrapods, Possess a Vomeronasal System

Content Provider	PubMed Central
Author	González, Agustín Ruth, Morona López, Jesús M. Moreno, Nerea Northcutt, R. Glenn
Copyright Year	2010
Abstract	The vomeronasal system (VNS) is an accessory olfactory system that in tetrapod vertebrates is composed of specific receptor neurons in the nasal organ and a set of centers in the forebrain that receive and relay the information consecutively towards the hypothalamus. Thus, only in tetrapods the VNS comprises a discrete vomeronasal (Jacobson's) organ, which contains receptor cells that are morphologically distinct from those of the olfactory epithelium and use different transduction mechanisms. The axons of the vomeronasal receptors in tetrapods project to the accessory olfactory bulb (AOB) in the rostral telencephalon. Secondary vomeronasal connections exist through the medial amygdala to the hypothalamus. Currently, the lungfishes are considered the closest living relatives of tetrapods. Here we show that the African lungfish, Protopterus dolloi, has epithelial crypts at the base of the lamellae of the olfactory epithelium that express markers of the vomeronasal receptors in tetrapods. The projections of these crypts allow us to identify an AOB on the lateral margin of the main olfactory bulb. The projections of this AOB reach a region that is topologically, hodologically, and immunohistochemically identical to the medial amygdala and could represent its homolog. Neurons of this putative medial amygdala were demonstrated to project to the lateral hypothalamus, as they do in tetrapods. All these features that lungfishes share with tetrapods indicate that lungfishes have the complete set of brain centers and connections involved in processing vomeronasal information and that these features were already present in the last common ancestor of lungfishes and tetrapods.
Related Links	http://dx.doi.org/10.3389/fnana.2010.00130
Starting Page	130
File Format	PDF
ISSN	16625129
e-ISSN	16625129
Journal	Frontiers in Neuroanatomy
Volume Number	4
Language	English
Publisher	Frontiers Research Foundation
Publisher Date	2010-01-01
Access Restriction	Open
Rights Holder	Frontiers Research Foundation
Subject Keyword	Anatomy Cellular and Molecular Neuroscience Neuroscience (miscellaneous) Research in Higher Education
Content Type	Text
Resource Type	Article
Subject	Anatomy Cellular and Molecular Neuroscience

Sl.	Authority	Responsibilities	Communication Details
1	Ministry of Education (GoI), Department of Higher Education	Sanctioning Authority	https://www.education.gov.in/ict-initiatives
2	Indian Institute of Technology Kharagpur	Host Institute of the Project: The host institute of the project is responsible for providing infrastructure support and hosting the project	https://www.iitkgp.ac.in
3	National Digital Library of India Office, Indian Institute of Technology Kharagpur	The administrative and infrastructural headquarters of the project	Dr. B. Sutradhar bsutra@ndl.gov.in
4	Project PI / Joint PI	Principal Investigator and Joint Principal Investigators of the project	Dr. B. Sutradhar bsutra@ndl.gov.in Prof. Saswat Chakrabarti will be added soon
5	Website/Portal (Helpdesk)	Queries regarding NDLI and its services	support@ndl.gov.in
6	Contents and Copyright Issues	Queries related to content curation and copyright issues	content@ndl.gov.in
7	National Digital Library of India Club (NDLI Club)	Queries related to NDLI Club formation, support, user awareness program, seminar/symposium, collaboration, social media, promotion, and outreach	clubsupport@ndl.gov.in
8	Digital Preservation Centre (DPC)	Assistance with digitizing and archiving copyright-free printed books	dpc@ndl.gov.in
9	IDR Setup or Support	Queries related to establishment and support of Institutional Digital Repository (IDR) and IDR workshops	idr@ndl.gov.in

Is the olfactory system of cartilaginous fishes a vomeronasal system?

The Risk of Extrapolation in Neuroanatomy: The Case of the Mammalian Vomeronasal System †

Cladistic Analysis of Olfactory and Vomeronasal Systems

Mutual influences between the main olfactory and vomeronasal systems in development and evolution

Physiological characterization of formyl peptide receptor expressing cells in the mouse vomeronasal organ

The molecular evolutionary dynamics of the vomeronasal receptor (class 1) genes in primates: a gene family on the verge of a functional breakdown

Hypothalamus-Olfactory System Crosstalk: Orexin A Immunostaining in Mice

Sensorimotor Integration by Corticospinal System

Unraveling Cajal's view of the olfactory system

Lungfishes, Like Tetrapods, Possess a Vomeronasal System

Similar Documents

Is the olfactory system of cartilaginous fishes a vomeronasal system?

The Risk of Extrapolation in Neuroanatomy: The Case of the Mammalian Vomeronasal System †

Cladistic Analysis of Olfactory and Vomeronasal Systems

Mutual influences between the main olfactory and vomeronasal systems in development and evolution

Physiological characterization of formyl peptide receptor expressing cells in the mouse vomeronasal organ

The molecular evolutionary dynamics of the vomeronasal receptor (class 1) genes in primates: a gene family on the verge of a functional breakdown

Hypothalamus-Olfactory System Crosstalk: Orexin A Immunostaining in Mice

Sensorimotor Integration by Corticospinal System

Unraveling Cajal's view of the olfactory system

Lungfishes, Like Tetrapods, Possess a Vomeronasal System