作者
Ranjith K Ellur, Apurva Khanna, Ashutosh Yadav, Sandeep Pathania, H Rajashekara, Vikas K Singh, S Gopala Krishnan, Prolay K Bhowmick, M Nagarajan, KK Vinod, G Prakash, Kalyan K Mondal, Nagendra K Singh, K Vinod Prabhu, Ashok K Singh
发表日期
2016/1/1
期刊
Plant Science
卷号
242
页码范围
330-341
出版商
Elsevier
简介
Marker assisted backcross breeding was employed to incorporate the blast resistance genes, Pi2 and Pi54 and bacterial blight (BB) resistance genes xa13 and Xa21 into the genetic background of Pusa Basmati 1121 (PB1121) and Pusa Basmati 6. Foreground selection for target gene(s) was followed by arduous phenotypic and background selection which fast-tracked the recovery of recurrent parent genome (RPG) to an extent of 95.8% in one of the near-isogenic lines (NILs) namely, Pusa 1728-23-33-31-56, which also showed high degree of resemblance to recurrent parent, PB6 in phenotype. The phenotypic selection prior to background selection provided an additional opportunity for identifying the novel recombinants viz., Pusa 1884-9-12-14 and Pusa 1884-3-9-175, superior to parental lines in terms of early maturity, higher yield and improved quality parameters. There was no significant difference between …
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