Rapid and longer‐term effects of selective breeding for voluntary exercise behavior on skeletal morphology in house mice

2020 ◽  
Author(s):  
Alberto A. Castro ◽  
Hannah Rabitoy ◽  
Gerald C. Claghorn ◽  
Theodore Garland

2021 ◽  
Author(s):  
Alberto A. Castro ◽  
Fotios Alexandros Karakostis ◽  
Lynn E. Copes ◽  
Holland E. McClendon ◽  
Aayushi P. Trivedi ◽  
...  


2020 ◽  
Vol 34 (S1) ◽  
pp. 1-1
Author(s):  
Alberto A. Castro ◽  
Holland E. McClednon ◽  
Aayushi P. Trivedi ◽  
Nicolas L. Schwartz ◽  
Theodore Garland


2021 ◽  
pp. 113675
Author(s):  
Margaret P. Schmill ◽  
Zoe Thompson ◽  
Donovan A. Argueta ◽  
Nicholas V. DiPatrizio ◽  
Theodore Garland


2019 ◽  
Vol 40 ◽  
pp. 99-109
Author(s):  
Nienke M. Schutte ◽  
Ineke Nederend ◽  
Meike Bartels ◽  
Eco J.C. de Geus


PLoS ONE ◽  
2020 ◽  
Vol 15 (11) ◽  
pp. e0241758
Author(s):  
Quynh Anh Thi Nguyen ◽  
David Hillis ◽  
Sayako Katada ◽  
Timothy Harris ◽  
Crystal Pontrello ◽  
...  

Ethologically relevant chemical senses and behavioral habits are likely to coadapt in response to selection. As olfaction is involved in intrinsically motivated behaviors in mice, we hypothesized that selective breeding for a voluntary behavior would enable us to identify novel roles of the chemosensory system. Voluntary wheel running (VWR) is an intrinsically motivated and naturally rewarding behavior, and even wild mice run on a wheel placed in nature. We have established 4 independent, artificially evolved mouse lines by selectively breeding individuals showing high VWR activity (High Runners; HRs), together with 4 non-selected Control lines, over 88 generations. We found that several sensory receptors in specific receptor clusters were differentially expressed between the vomeronasal organ (VNO) of HRs and Controls. Moreover, one of those clusters contains multiple single-nucleotide polymorphism loci for which the allele frequencies were significantly divergent between the HR and Control lines, i.e., loci that were affected by the selective breeding protocol. These results indicate that the VNO has become genetically differentiated between HR and Control lines during the selective breeding process. Although the role of the vomeronasal chemosensory receptors in VWR activity remains to be determined, the current results suggest that these vomeronasal chemosensory receptors are important quantitative trait loci for voluntary exercise in mice. We propose that olfaction may play an important role in motivation for voluntary exercise in mammals.



2018 ◽  
Vol 233 (2) ◽  
pp. 193-203 ◽  
Author(s):  
Nicolas L. Schwartz ◽  
Biren A. Patel ◽  
Theodore Garland ◽  
Angela M. Horner


2017 ◽  
Vol 90 (5) ◽  
pp. 533-545 ◽  
Author(s):  
Gerald C. Claghorn ◽  
Zoe Thompson ◽  
Jarren C. Kay ◽  
Genesis Ordonez ◽  
Thomas G. Hampton ◽  
...  


2003 ◽  
Vol 12 (2) ◽  
pp. 129-138 ◽  
Author(s):  
A. M. Bronikowski ◽  
P. A. Carter ◽  
T. J. Morgan ◽  
T. Garland ◽  
N. Ung ◽  
...  

We present the first quantitative gene expression analysis of cardiac aging under conditions of sedentary and active lifestyles using high-density oligonucleotide arrays representing 11,904 cDNAs and expressed sequence tags (ESTs). With these data, we test the hypothesis that exercise attenuates the gene expression changes that normally occur in the aging heart. Male mice ( Mus domesticus) were sampled from the 16th generation of selective breeding for high voluntary exercise. For the selective breeding protocol, breeders were chosen based on the maximum number of wheel revolutions run on days 5 and 6 of a test at 8 wk of age. For the colony sampled herein, mice were housed individually over their entire lifetimes (from weaning) either with or without access to running wheels. The hearts of these two treatment groups (active and sedentary) were assayed at middle age (20 mo) and old age (33 mo). Genes significantly affected by age in the hearts of the sedentary population by at least a 50% expression change ( n = 137) were distributed across several major categories, including inflammatory response, stress response, signal transduction, and energy metabolism. Genes significantly affected by age in the active population were fewer ( n = 62). Of the 42 changes in gene expression that were common to both treatment groups, 32 (72%) displayed smaller fold changes as a result of exercise. Thus exercise offset many age-related gene expression changes observed in the hearts of the sedentary animals. These results suggest that adaptive physiological mechanisms that are induced by exercise can retard many effects of aging on heart muscle at the transcriptional level.



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