Application of MABC for introgression of Genes/QTL into elite plant variety
Three backcrosses were conducted and Saltol alleles was successfully transferred from FL478 into BT7. The hybrid plants IL-30 and IL-32 in BC3F1 population showed recurrent genome recovery up to 99.3% and 100%, respectively. These selected lines that carried the Saltol allele were screened in field for their agronomic traits. All improved lines had Saltol allele similar to the donor parent line FL478, whereas their agronomic performances were the same as the original BT7. We show here the improving of rice salt tolerance by MABC and the high efficiency of selection in early generations. In the present study, MABC has accelerated the development of superior qualities in the genetic background of BT7.