AJP - Regu Fuel your research with LabChart
HOME HELP FEEDBACK SUBSCRIPTIONS ARCHIVE SEARCH TABLE OF CONTENTS
QUICK SEARCH:   [advanced]


     

Am J Physiol Regul Integr Comp Physiol 271: R432-R436, 1996;
0363-6119/96 $5.00
This Article
Right arrow Full Text (PDF)
Right arrow Alert me when this article is cited
Right arrow Alert me if a correction is posted
Services
Right arrow Email this article to a friend
Right arrow Similar articles in this journal
Right arrow Similar articles in PubMed
Right arrow Alert me to new issues of the journal
Right arrow Download to citation manager
Citing Articles
Right arrow Citing Articles via HighWire
Right arrow Citing Articles via Google Scholar
Google Scholar
Right arrow Articles by Suwa, M.
Right arrow Articles by Katsuta, S.
Right arrow Search for Related Content
PubMed
Right arrow PubMed Citation
Right arrow Articles by Suwa, M.
Right arrow Articles by Katsuta, S.

AJP - Regulatory, Integrative and Comparative Physiology, Vol 271, Issue 2 432-R436, Copyright © 1996 by American Physiological Society

ARTICLES

Heredity of muscle fiber composition and correlated response of the synergistic muscle in rats

M. Suwa, T. Nakamura and S. Katsuta
Institute of Health and Sport Sciences, University of Tsukuba, Ibaraki, Japan.

The extent to which muscle fiber composition was determined by genes transmitted from parents and the correlated response of the synergistic muscle were analysed by using successive selection of rats. The foundation population (G0) was prepared by random choice from heterogeneous stock produced by random mating of three strains, Wistar-Imamichi, Fischer 344, and Donryu. Selective mating for a high percentage of fast-twitch fibers (%FT) in the deep portion of the lateral head of the gastrocnemius muscle and random mating were made from G0 to the seventh generation (G7). Successive selection caused a significant increase (P < 0.05) of %FT in the gastrocnemius muscle. The realized heritability for seven generations was 0.29. %FT in the soleus muscle of the selected line also increased (P < 0.05). In addition, significantly positive correlations (P < 0.05) were found between %FT in the gastrocnemius and soleus muscles in G1-G7. We conclude that approximately 29% of the variation of %FT was determined by genes transmitted from parents, and %FT in the gastrocnemius muscle was positively correlated with that of the soleus muscle.


This article has been cited by other articles:


Home page
 J. Appl. Physiol.Home page
M. Suwa, H. Nakano, Y. Higaki, T. Nakamura, S. Katsuta, and S. Kumagai
Increased wheel-running activity in the genetically skeletal muscle fast-twitch fiber-dominant rats
J Appl Physiol, January 1, 2003; 94(1): 185 - 192.
[Abstract] [Full Text] [PDF]


HOME HELP FEEDBACK SUBSCRIPTIONS ARCHIVE SEARCH TABLE OF CONTENTS
Visit Other APS Journals Online