The Nurturing Station for the State Key Laboratory of Subtropical Silviculture, Zhejiang Agricultural and Forestry University, Linan, Zhejiang 311300, China, Center for Statistical Genetics, The Pennsylvania State University, Hershey, PA 17033, USA. Tel.: +1 717 531 2037, Fax: +1 717 531 0480, rwu@phs.psu.edu.|The Nurturing Station for the State Key Laboratory of Subtropical Silviculture, Zhejiang Agricultural and Forestry University, Linan, Zhejiang 311300, China, Center for Statistical Genetics, The Pennsylvania State University, Hershey, PA 17033, USA. Tel.: +1 717 531 2037, Fax: +1 717 531 0480, rwu@phs.psu.edu.|The Nurturing Station for the State Key Laboratory of Subtropical Silviculture, Zhejiang Agricultural and Forestry University, Linan, Zhejiang 311300, China, Center for Statistical Genetics, The Pennsylvania State University, Hershey, PA 17033, USA. Tel.: +1 717 531 2037, Fax: +1 717 531 0480, rwu@phs.psu.edu.|The Nurturing Station for the State Key Laboratory of Subtropical Silviculture, Zhejiang Agricultural and Forestry University, Linan, Zhejiang 311300, China, Center for Statistical Genetics, The Pennsylvania State University, Hershey, PA 17033, USA. Tel.: +1 717 531 2037, Fax: +1 717 531 0480, rwu@phs.psu.edu.|The Nurturing Station for the State Key Laboratory of Subtropical Silviculture, Zhejiang Agricultural and Forestry University, Linan, Zhejiang 311300, China, Center for Statistical Genetics, The Pennsylvania State University, Hershey, PA 17033, USA. Tel.: +1 717 531 2037, Fax: +1 717 531 0480, rwu@phs.psu.edu.|The Nurturing Station for the State Key Laboratory of Subtropical Silviculture, Zhejiang Agricultural and Forestry University, Linan, Zhejiang 311300, China, Center for Statistical Genetics, The Pennsylvania State University, Hershey, PA 17033, USA. Tel.: +1 717 531 2037, Fax: +1 717 531 0480, rwu@phs.psu.edu.|The Nurturing Station for the State Key Laboratory of Subtropical Silviculture, Zhejiang Agricultural and Forestry University, Linan, Zhejiang 311300, China, Center for Statistical Genetics, The Pennsylvania State University, Hershey, PA 17033, USA. Tel.: +1 717 531 2037, Fax: +1 717 531 0480, rwu@phs.psu.edu.