Marker-assisted selection (MAS) and genomic selection (GS) breeding have greatly improved the efficiency of rice breeding. Due to the influence of epistasis and gene pleiotropy, how to ensure the actual breeding effect of MAS and GS is still a difficult problem to overcome. In this study, 113 indica rice varieties (V) and their 565 testcross hybrids (TC) were used as materials to investigate the genetic basis of 12 quality traits and 9 agronomic traits. The original traits and general combining ability of parents, as well as the original traits and mid-parent heterosis of testcross hybrids wer...
