Genetic variability of the pattern of night melatonin blood levels in relation to coat changes development in rabbits

Autor: Hubert de Rochambeau, Philippe Chemineau, Daniel Allain, R. G. Thebault, Benoît Malpaux, François Puechal
Jazyk: angličtina
Rok vydání: 2004
Předmět:
mélatonine
variabilité génétique
oryctolagus cuniculus
sécrétion
0302 clinical medicine
genetic variability
Genetics(clinical)
Longitudinal Studies
melatonin secretion
lcsh:SF1-1100
Melatonin
photoperiodism
0303 health sciences
photoréceptivité
General Medicine
Circadian Rhythm
fourrure
Rabbits
medicine.drug
Coat
medicine.medical_specialty
lcsh:QH426-470
Photoperiod
rabbit
Radioimmunoassay
Biology
Nocturnal
03 medical and health sciences
Animal science
Internal medicine
Genetic variation
medicine
Genetics
Animals
Circadian rhythm
Genetic variability
lapin
coat development
Ecology
Evolution
Behavior and Systematics
030304 developmental biology
Research
pelage
Genetic Variation
Heritability
photopériode
[SDV.GEN.GA]Life Sciences [q-bio]/Genetics/Animal genetics
lcsh:Genetics
Endocrinology
Animal Science and Zoology
lcsh:Animal culture
030217 neurology & neurosurgery
Hair
Zdroj: Genetics, Selection, Evolution : GSE
Genetics Selection Evolution (36), 207-216. (2004)
Genetics Selection Evolution, Vol 36, Iss 2, Pp 207-216 (2004)
Genetics Selection Evolution
Genetics Selection Evolution, BioMed Central, 2004, 36 (2), pp.207-216. ⟨10.1051/gse:2003059⟩
ISSN: 1297-9686
0999-193X
DOI: 10.1051/gse:2003059⟩
Popis: International audience; To assess the genetic variability in both the nocturnal increase pattern of melatonin concentration and photoresponsiveness in coat changes, an experiment on 422 Rex rabbits (from 23 males) raised under a constant light programme from birth was performed. The animals were sampled at 12 weeks of age, according to 4 periods over a year. Blood samples were taken 7 times during the dark phase and up to 1 h after the lighting began. Maturity of the fur was assessed at pelting. Heritability estimates of blood melatonin concentration (0.42, 0.17 and 0.11 at mid-night, 13 and 15 h after lights-out respectively) and strong genetic correlations between fur maturity and melatonin levels at the end of the dark phase ($-0.64$) indicates that (i) the variability of the nocturnal pattern of melatonin levels is under genetic control and (ii) the duration of the nocturnal melatonin increase is a genetic component of photoresponsiveness in coat changes.
Databáze: OpenAIRE
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