Clc genetics chapter 4

Part 8: Apply molecular assisted selection (MAS) markers for improved rice varieties in rice, student seminar LECTURE OUTLINE 1.  MARKER ASSISTED SELECTION: THEORY AND PRACTICE 2.  MAS BREEDING SCHEMES 3.  CURRENT STATUS OF MAS SECTION MARKER ASSISTED SELECTION (MAS): THEORY AND PRACTICE Definition: Marker assisted selection (MAS) refers to the use of DNA markers that are tightly-linked to target loci as a substitute for or to assist phenotypic screening Assumption: DNA markers can reliably predict phenotype CONVENTIONAL  PLANT  BREEDING   P1 x P2 Donor   Recipient   F1 F2 large populations consisting of thousands of plants PHENOTYPIC SELECTION Salinity  screening  in  phytotron   Glasshouse trials Phosphorus  deficiency  plot   Bacterial  blight  screening   Field trials MARKER-­‐ASSISTED  BREEDING   P1 x Suscep