Article (Scientific journals)
A sexually dimorphic nucleus in the quail preoptic area.
Viglietti-Panzica, C.; Panzica, G. C.; Fiori, M. G. et al.
1986In Neuroscience Letters, 64 (2), p. 129-34
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Keywords :
Animals; Coturnix/anatomy & histology; Female; Male; Preoptic Area/anatomy & histology; Quail/anatomy & histology; Sex Characteristics; Suprachiasmatic Nucleus/anatomy & histology
Abstract :
[en] The cytoarchitectural analysis of the preoptic-anterior hypothalamic region of the Japanese quail reveals a sexual dimorphism in the total volume of the medial preoptic nucleus (significantly larger in males than in females). Different nuclei of the region (dorsal preopticus, suprachiasmaticus) do not show any statistically significant difference. The sex-related difference is more consistent comparing the distribution of dark volume. This last is due to a larger number of cells containing high amount of Nissl's substance in male than in female. Present findings represent the first example of sexual dimorphism in the avian hypothalamus.
Disciplines :
Zoology
Neurosciences & behavior
Author, co-author :
Viglietti-Panzica, C.
Panzica, G. C.
Fiori, M. G.
Calcagni, M.
Anselmetti, G. C.
Balthazart, Jacques  
Language :
English
Title :
A sexually dimorphic nucleus in the quail preoptic area.
Publication date :
1986
Journal title :
Neuroscience Letters
ISSN :
0304-3940
eISSN :
1872-7972
Publisher :
Elsevier Scientific Publishers Ireland, Limerick, Ireland
Volume :
64
Issue :
2
Pages :
129-34
Peer reviewed :
Peer Reviewed verified by ORBi
Available on ORBi :
since 18 July 2011

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