*2.1. Plant Materials*

The DP30-CSSLs were developed by using the elite rice cultivar 93-11 as the recurrent parent. Guangxi common wild rice DP30 was collected from Nanning, Guangxi Province and used as the donor parent. The original habitat of DP30 was conserved during the collection of the wild rice germplasm. Refer to previous studies to reduce the impact of environment factors on QTL, materials including receptor 93-11 and CSSLs were grown in both seasons of 2018 (fall and spring) [13].
