Distinguishing Population Stratification from Genuine Allelic Effects with Mx: Association of ADH2 with Alcohol Consumption
Distinguishing Population Stratification from Genuine Allelic Effects with Mx: Association of ADH2 with Alcohol Consumption
复制标题
使用 Mx 区分人群分层和真正的等位基因效应:ADH2 与饮酒的关联
DOI:
10.1023/a:1021638122693
复制
发表时间:
1999
影响因子:
2.6
通讯作者:
N. G. Martin
中科院分区:
文献类型:
--
作者:
M. Neale;S. Cherny;P. Sham;J. Whitfield;A. Heath;A. Birley;N. G. Martin
A universal problem in genetic association studies is to distinguish associations due to genuine effects of the locus under investigation, or linkage disequilibrium with a nearby locus that has a genuine effect, from associations due to population stratification or other artifacts. Fulker et al. (1999) have suggested a test using unselected sib pairs to distinguish these two causes of association. The test is readily implemented within a standard maximum-likelihood framework using the Mx package. The approach is applied to data on ADH2 genotypes and a measure of alcohol consumption from an Australian DZ twin pair sample. Results indicate that the association of the ADH2*2 allele with lower alcohol consumption cannot be explained by simple admixture and that there may be genuine allelic effects of the locus on alcohol consumption. Power calculations are provided to show that these results are plausible for the sample size in this study and consider the effects of genetic architecture and sample structure on required sample sizes for the Fulker et al. test.
登录
查看更多内容
影响因子:
9.8
作者:
L. Kruglyak;E. Lander
通讯作者:
L. Kruglyak;E. Lander
影响因子:
5.6
作者:
HURLEY, TD;BOSRON, WF;AMZEL, LM
通讯作者:
AMZEL, LM
影响因子:
9.8
作者:
R. Spielman;W. Ewens
通讯作者:
R. Spielman;W. Ewens
影响因子:
9.8
作者:
Spielman, RS;Ewens, WJ
通讯作者:
Ewens, WJ
影响因子:
2.9
作者:
YIN, SJ;BOSRON, WF;LI, TK
通讯作者:
LI, TK