Y. R. Chai, B. Lei, H. L. HuangJ. N. Li, J. M. Yin, Z. L. Tan, R. Wang and L Chen. TRANSPARENT TESTA 12 genes from Bras- sica napus and parental species cloning, evolution, and different- tial involvement in yellow seed trait. Molecular Genetics and Genom-ics, 2009, 281(1): 109-123.