Article (Scientific journals)
Site-specific effects of anosmia and cloacal gland anesthesia on Fos expression induced in male quail brain by sexual behavior.
Taziaux, Mélanie; Keller, Matthieu; Ball, Gregory F et al.
2008In Behavioural Brain Research, 194 (1), p. 52-65
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Keywords :
Amygdala/metabolism; Analysis of Variance; Anesthetics, Local/pharmacology; Animals; Behavior, Animal; Brain/metabolism/pathology; Cell Count/methods; Early Growth Response Protein 1/metabolism; Gene Expression Regulation/drug effects; Lidocaine/pharmacology; Male; Olfaction Disorders/complications/pathology; Oncogene Proteins v-fos/metabolism; Orchiectomy/methods; Preoptic Area/metabolism; Quail; Septal Nuclei/metabolism; Sexual Behavior, Animal/drug effects/physiology; Sweat Glands/drug effects/physiology; Urinary Tract/anatomy & histology
Abstract :
[en] In rats, expression of the immediate early gene, c-fos observed in the brain following male copulatory behavior relates mostly to the detection of olfactory information originating from the female and to somatosensory feedback from the penis. However, quail, like most birds, are generally considered to have a relatively poorly developed sense of smell. Furthermore, quail have no intromittent organ (e.g., penis). It is therefore intriguing that expression of male copulatory behavior induces in quail and rats a similar pattern of c-fos expression in the medial preoptic area (mPOA), bed nucleus of the stria terminalis (BSTM) and parts of the amygdala. We analyzed here by immunocytochemistry Fos expression in the mPOA/BSTM/amygdala of male quail that had been allowed to copulate with a female during standardized tests. Before these tests, some of the males had either their nostrils plugged, or their cloacal area anesthetized, or both. A control group was not exposed to females. These manipulations did not affect frequencies of male sexual behavior and all birds exposed to a female copulated normally. In the mPOA, the increased Fos expression induced by copulation was not affected by the cloacal gland anesthesia but was markedly reduced in subjects deprived of olfactory input. Both manipulations affected copulation-induced Fos expression in the BSTM. No change in Fos expression was observed in the amygdala. Thus immediate early gene expression in the mPOA and BSTM of quail is modulated at least in part by olfactory cues and/or somatosensory stimuli originating from the cloacal gland. Future work should specify the nature of these stimuli and their function in the expression of avian male sexual behavior.
Disciplines :
Zoology
Anatomy (cytology, histology, embryology...) & physiology
Author, co-author :
Taziaux, Mélanie ;  Université de Liège - ULiège > Département des sciences biomédicales et précliniques > Biologie de la différenciation sexuelle du cerveau
Keller, Matthieu
Ball, Gregory F
Balthazart, Jacques  ;  Université de Liège - ULiège > Département des sciences biomédicales et précliniques > Biologie de la différenciation sexuelle du cerveau
Language :
English
Title :
Site-specific effects of anosmia and cloacal gland anesthesia on Fos expression induced in male quail brain by sexual behavior.
Publication date :
2008
Journal title :
Behavioural Brain Research
ISSN :
0166-4328
eISSN :
1872-7549
Publisher :
Elsevier Science, Amsterdam, Netherlands
Volume :
194
Issue :
1
Pages :
52-65
Peer reviewed :
Peer Reviewed verified by ORBi
Available on ORBi :
since 13 April 2009

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