TY  - JOUR
T1  - Detection of Quantitative Trait Loci Affecting Muscle Histochemical Properties in the F<SUB>2</SUB> Progeny of a Cross Between Japanese Black and Limousin Breed
AU - Abe, Tsuyoshi AU - Hasebe, Hiroyuki AU - Nakagawa, Tetsuo AU - Uemoto, Yoshinobu AU - Saito, Kaoru AU - Nade, Toshihiro AU - Kawamura, Tadashi AU - Kobayashi, Eiji 
JO  - Journal of Animal and Veterinary Advances
VL  - 8
IS  - 11
SP  - 2190
EP  - 2195
PY  - 2009
DA  - 2001/08/19
SN  - 1680-5593
DO  - javaa.2009.2190.2195
UR  - https://makhillpublications.co/view-article.php?doi=javaa.2009.2190.2195
KW  - QTL
KW  -Japanese black
KW  -limousin
KW  -meat quality
KW  -muscle fiber
KW  -beef
AB  - With a view towards, the genetic improvement of economically important traits, we previously generated a beef cattle F<SUB>2</SUB> resource population from a Japanese Black and Limousin cross. Here, we report on a genome-wide scan for QTLs affecting muscle fiber diameter and composition traits. The longissimus thoraces muscle samples from 150 F<SUB>2</SUB> animals were examined to determine muscle fiber type and diameter. At the same time, F<SUB>2</SUB> animals as well as the F<SUB>1</SUB> parents and F<SUB>0</SUB> grandparents were genotyped for 313 informative micro satellite markers that spanned 2.382 cM of the Bovine autosomes. The results of a genome scan using least-squares regression interval mapping provided evidence for a QTL affecting the diameter of the red muscle fiber (&lt;5% chromosome-wide level) at 42 cM on BTA17; a QTL affecting the composition of the red and white muscle fibers (&lt;5% chromosome-wide level) at 0 cM on BTA5 and a QTL affecting the composition of the red muscle fiber (&lt;5% chromosome-wide level) at 106 cM on BTA8. Thus in this study, we detected 3 QTLs for 3 traits. The detected QTLs were either contiguous with or overlapped previously reported QTLs with effects on several traits assumed to be related to muscle histochemical properties.
ER  -