| 查看: 529 | 回复: 3 | ||
| 当前只显示满足指定条件的回帖，点击这里查看本话题的所有回帖 | ||
chunyan159金虫 (小有名气)
|
[求助]
QTL mapping analysis
|
|
| A high-density genetic map was created with 1,046 molecular markers that included 937 SFPs and 109 SSRs, with an average marker separation of less than 2 cM. The interval mapping (IM) method was conducted to predict QTLs, followed by composite interval mapping (CIM) using Qgene v4.3.6 ,with permutations of 1000 iterations to declare the QTL as significant. For CIM, stepwise cofactor selection was used with markers as cofactors and the maximum number of cofactors was selected automatically (F to add=0.01 and F to drop=0.01). The permutation LOD value at p ≤ 0.05 was used as the threshold to declare the significance of the QTLs. The interactions among QTLs were identified using QTLNetwork-v2.1 software, with a mixed linear model based on CIM with a 10 cM window size and 1 cM walking speed. Permutation tests with 1,000 runs were used to determine the threshold of the F-value for the significance of QTLs to control genome-wide type I errors. Digenic interactions were also analyzed using a mixed-model approach. Significance levels for the genome scans for candidate intervals, QTL detection, and effects were set at 0.05, 0.001, and 0.001, respectively. The epistatic interaction between QTLs was illustrated using the Circos software. |
回复此楼» 猜你喜欢
职称评审没过，求安慰
已经有51人回复
-
毕业后当辅导员了，天天各种学生超烦
已经有5人回复
-
26申博自荐
已经有3人回复
-
A期刊撤稿
已经有4人回复
-
垃圾破二本职称评审标准
已经有17人回复
-
投稿Elsevier的Neoplasia杂志，到最后选publishing options时页面空白，不能完成投稿
已经有22人回复
-
EST投稿状态问题
已经有7人回复
4楼2015-04-09 20:46:08
2楼2015-04-07 00:51:12
3楼2015-04-07 00:54:55