PROC QTL-A：用于定位数量性状基因座的SAS程序。
PROC QTL-A SAS Procedure for Mapping Quantitative Trait Loci.
作者信息
Hu Zhiqiu, Xu Shizhong
机构信息
Department of Botany and Plant Sciences, University of California, Riverside, CA 92521, USA.
出版信息
Int J Plant Genomics. 2009;2009:141234. doi: 10.1155/2009/141234. Epub 2009 Dec 8.
Statistical analysis system (SAS) is the most comprehensive statistical analysis software package in the world. It offers data analysis for almost all experiments under various statistical models. Each analysis is performed using a particular subroutine, called a procedure (PROC). For example, PROC ANOVA performs analysis of variances. PROC QTL is a user-defined SAS procedure for mapping quantitative trait loci (QTL). It allows users to perform QTL mapping for continuous and discrete traits within the SAS platform. Users of PROC QTL are able to take advantage of all existing features offered by the general SAS software, for example, data management and graphical treatment. The current version of PROC QTL can perform QTL mapping for all line crossing experiments using maximum likelihood (ML), least square (LS), iteratively reweighted least square (IRLS), Fisher scoring (FISHER), Bayesian (BAYES), and empirical Bayes (EBAYES) methods.
统计分析系统（SAS）是世界上最全面的统计分析软件包。它能对各种统计模型下的几乎所有实验进行数据分析。每次分析都使用一个特定的子程序来执行，这个子程序称为过程（PROC）。例如，PROC ANOVA用于执行方差分析。PROC QTL是一个用户定义的SAS过程，用于绘制数量性状基因座（QTL）。它允许用户在SAS平台内对连续和离散性状进行QTL定位。PROC QTL的用户能够利用通用SAS软件提供的所有现有功能，例如数据管理和图形处理。PROC QTL的当前版本可以使用最大似然（ML）、最小二乘法（LS）、迭代加权最小二乘法（IRLS）、费舍尔评分（FISHER）、贝叶斯（BAYES）和经验贝叶斯（EBAYES）方法，对所有品系杂交实验进行QTL定位。
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