PlantQTL-GE: a database system for identifying candidate genes in rice and Arabidopsis by gene expression and QTL information. - Huazong Zeng; Lijun Luo; Weixiong Zhang; Jie Zhou; Zuofeng Li; Hongyan Liu; Tiansheng Zhu; Xiangqian Feng; Yang Zhong (Nucleic Acids Res., 2007)