RGD Reference Report - The influence of sex and estrous cycle on QTL for emotionality and ethanol consumption. - Rat Genome Database

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The influence of sex and estrous cycle on QTL for emotionality and ethanol consumption.

Authors: Izidio, GS  Oliveira, LC  Oliveira, LF  Pereira, E  Wehrmeister, TD  Ramos, A 
Citation: Izidio GS, etal., Mamm Genome. 2011 Jun;22(5-6):329-40. Epub 2011 Apr 24.
RGD ID: 6218999
Pubmed: PMID:21516450   (View Abstract at PubMed)
DOI: DOI:10.1007/s00335-011-9327-5   (Journal Full-text)

The inbred rat strains Lewis (LEW) and Spontaneously Hypertensive Rats (SHR) differ with respect to several emotionality- and ethanol intake-related behaviors, one of which (inner locomotion in the open field; OF) is strongly influenced by a locus (Anxrr16) on chromosome (Chr) 4. We aimed to further investigate the influence of Chr 4 on these behaviors and to evaluate the role of the estrous cycle in QTL expression. LEW females and SHR males were intercrossed to produce F1 and F2 rats (96-97/sex), which were then tested in the OF, light-dark box (LDB), forced swimming test (FST), and an ethanol consumption procedure (ECP). In addition, another group of 96 F2 females were tested in the OF and LDB according to their estrous cycle phase. All animals were genotyped for microsatellite markers located on Chr 4 and two QTL analyses were performed. A factor analysis of the F2 population produced five factors reflecting different behavioral dimensions. QTL analysis revealed five significant loci in males, some of which with pleiotropic effects on behaviors measured in the OF, LDB, and ECP. The second QTL analysis revealed two significant loci in females in diestrous-proestrous and one in females in estrous-metestrous that influence behaviors in the OF and LDB. Results revealed that Anxrr16 and four other new QTL influence emotionality- and ethanol-related behaviors in male rats, whereas Anxrr16 attained suggestive levels only in females in diestrous-proestrous, which raises the need for taking into account factors related to the sex and estrous cycle in behavioral QTL analysis.



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Mammalian Phenotype

Object SymbolSpeciesTermQualifierEvidenceWithNotesSourceOriginal Reference(s)
Alc23Ratincreased alcohol consumption  IDA  RGD 
Anxrr29Ratincreased anxiety-related response  IDA  RGD 
Anxrr30Ratincreased anxiety-related response  IDA  RGD 
Anxrr31Ratincreased anxiety-related response  IDA  RGD 
Anxrr32Ratincreased anxiety-related response  IDA  RGD 
Anxrr33Ratincreased anxiety-related response  IDA  RGD 
Anxrr34Ratincreased anxiety-related response  IDA  RGD 
Anxrr35Ratincreased anxiety-related response  IDA  RGD 
Anxrr36Ratincreased anxiety-related response  IDA  RGD 
Anxrr37Ratincreased anxiety-related response  IDA  RGD 
Anxrr38Ratincreased anxiety-related response  IDA  RGD 
Anxrr39Ratincreased anxiety-related response  IDA  RGD 
Anxrr40Ratincreased anxiety-related response  IDA  RGD 
Anxrr41Ratincreased anxiety-related response  IDA  RGD 
Anxrr42Ratincreased anxiety-related response  IDA  RGD 
Anxrr43Ratincreased anxiety-related response  IDA  RGD 
Anxrr44Ratincreased anxiety-related response  IDA  RGD 
Anxrr45Ratincreased anxiety-related response  IDA  RGD 
Anxrr46Ratincreased anxiety-related response  IDA  RGD 
Anxrr47Ratincreased anxiety-related response  IDA  RGD 
Anxrr48Ratincreased anxiety-related response  IDA  RGD 
Anxrr49Ratincreased anxiety-related response  IDA  RGD 
Anxrr50Ratincreased anxiety-related response  IDA  RGD 
Anxrr51Ratincreased anxiety-related response  IDA  RGD 
Anxrr52Ratincreased anxiety-related response  IDA  RGD 
Anxrr53Ratincreased anxiety-related response  IDA  RGD 
Objects Annotated

QTLs
Alc23  (Alcohol consumption QTL 23)
Anxrr29  (Anxiety related response QTL 29)
Anxrr30  (Anxiety related response QTL 30)
Anxrr31  (Anxiety related response QTL 31)
Anxrr32  (Anxiety related response QTL 32)
Anxrr33  (Anxiety related response QTL 33)
Anxrr34  (Anxiety related response QTL 34)
Anxrr35  (Anxiety related response QTL 35)
Anxrr36  (Anxiety related response QTL 36)
Anxrr37  (Anxiety related response QTL 37)
Anxrr38  (Anxiety related response QTL 38)
Anxrr39  (Anxiety related response QTL 39)
Anxrr40  (Anxiety related response QTL 40)
Anxrr41  (Anxiety related response QTL 41)
Anxrr42  (Anxiety related response QTL 42)
Anxrr43  (Anxiety related response QTL 43)
Anxrr44  (Anxiety related response QTL 44)
Anxrr45  (Anxiety related response QTL 45)
Anxrr46  (Anxiety related response QTL 46)
Anxrr47  (Anxiety related response QTL 47)
Anxrr48  (Anxiety related response QTL 48)
Anxrr49  (Anxiety related response QTL 49)
Anxrr50  (Anxiety related response QTL 50)
Anxrr51  (Anxiety related response QTL 51)
Anxrr52  (Anxiety related response QTL 52)
Anxrr53  (Anxiety related response QTL 53)

Strains
LEW/HsdUnibAnra  (NA)
SHR/NCrlAnra  (NA)

Objects referenced in this article
QTL Anxrr16 Anxiety related response QTL 16 Rattus norvegicus

Additional Information