Quantitative trait loci(QTL) analysis in a Meishan X Gottingen cross population

Y. Wada, T. Akita, T. Awata, T. Furukawa, N. Hisamatsu, Y. Inage, 
K. Ishii, Y. Ito, E. Kobayashi, H. Kusumoto, T. Matsumoto, S. Mikawa,
M. Miyake, A. Murase, S. Shimanuki, T. Sugiyama, Y. Uchida, S. Yanai,
H. Yasue

Dep. Animal Breeding and Genetics
National Institute of Animal Industry
2 Ikenodai, Kukisaki-machi, Inashiki-gun,
Ibaraki 305-0901, Japan

The Second Research Division
Society for Techno-Innovation of Agriculture, Forestry and Fisheries,
446-1
Ippaizuka, Kamiyokoba, Tsukuba, 
Ibaraki 305-0854, Japan

Summary

    In order to locate the genetic regions responsible for traits 
on swine genome, a resource population has been constructed by 
mating two female Meishan pigs with a male Gottingen miniature pig.
In subsequent generations, 265 F2 offspring were produced from two
F1 males and 19 F1 females. The F2 offspring were scored for eight
traits including growth rate, teat number, vertebra number and 
backfat thickness, and genotyped for 318 genetic markers covering
the swine genome. Least-square analysis revealed quantitative trait
loci(QTL) effects for vertebra number on chromosomes 1 and 2; for
teat number on chromosomes 1 and 7; for birth weight on chromosome
1; for average daily gain between 4 and 13 week of age on chromosomes
9 and 10; for backfat thickness on chromosome 7; and for backskin 
thickness on chromosome 3.


Animal Genetics 31(6): 376-384 (2000)