[Genetic effect of the marker assisted selection on economic traits of goats].
The genetic relationships between economic traits and genetic markers were studied in 147 goats including Chaidamu goat (CS), Chaidamu Cashmere goat (CRS) and Liaoning Cashmere goat (LRS) in Qinghai province, China. CRS was the population of CSxLRS crossbred. The results showed as follows: the selection reaction of these blood protein polymorphisic loci were great, such as EsD, LAP and P(A-3); and EsD2-2, LAPBB and PA-32-2 were the superior marker genotypes on body weight ,Cashmere yield and Cashmere fineness respectively by Least Square method. The interaction between marker genotypes at double loci was found frequently, and their ratio between interaction variance component and genetic variance was higher. With the method of marker assisted prediction( MAP), some interaction effect could be used effectively in the crossbreed population. On the aspect of random amplified polymorphic DNA (RAPD), the number of the superior RAPD marker bands were 11 on body weight trait, 9 and 6 RAPD marker bands on Cashmere yield and Cashmere fineness. For multi-goal traits, CY0818/A0 type and OPW19/C1 type were superior RAPD markers of body weight and Cashmere yield, CY0818/G1 type was superior one of body weight and Cashmere fineness.
Shen
Wei
W
College of Animal Science and Technology, Northwest Sci-Tech University of Agriculture and Forestry, Yangling, Shaanxi 712 100, China. shenwei427@yahoo.com.cn
Li
Lan
L
Pan
Qing-Jie
QJ
Qin
Guo-Qing
GQ
Geng
She-Min
SM
D000818:Animals; D001835:Body Weight / Q000235:genetics; D001947:Breeding / Q000191:economics*; D002681:China; D005819:Genetic Markers; D005838:Genotype; D006041:Goats / Q000145:classification / Q000235:genetics*; D007931:Leucyl Aminopeptidase / Q000235:genetics; D011228:Prealbumin / Q000235:genetics; D019655:Quantitative Trait, Heritable; D012641:Selection, Genetic; D013869:Thiolester Hydrolases / Q000235:genetics; D014935:Wool / Q000191:economics
D005819:Genetic Markers; D011228:Prealbumin; D013869:Thiolester Hydrolases; C020149:s-formylglutathione hydrolase; D007931:Leucyl Aminopeptidase