Affiliations 

  • 1 Faculty of Science and Technology, Universiti Kebangsaan Malaysia, 43600, Bangi, Selangor, Malaysia. nora_aziz@ukm.edu.my
  • 2 International Rice Research Institute, Los Banos, DAPO BOX 7777, Metro Manila, Philippines. m.swamy@irri.org
  • 3 Faculty of Science and Technology, Universiti Kebangsaan Malaysia, 43600, Bangi, Selangor, Malaysia. wicki@ukm.edu.my
  • 4 International Rice Research Institute, Los Banos, DAPO BOX 7777, Metro Manila, Philippines. m.stacruz@irri.org
  • 5 International Rice Research Institute, Los Banos, DAPO BOX 7777, Metro Manila, Philippines. a.raman@irri.org
  • 6 International Rice Research Institute, Los Banos, DAPO BOX 7777, Metro Manila, Philippines. a.kumar@irri.org
BMC Genet, 2016;17:30.
PMID: 26818269 DOI: 10.1186/s12863-016-0334-0

Abstract

Three drought yield QTLs, qDTY 2.2, qDTY 3.1, and qDTY 12.1 with consistent effect on grain yield under reproductive stage drought stress were pyramided through marker assisted breeding with the objective of improving the grain yield of the elite Malaysian rice cultivar MR219 under reproductive stage drought stress. Foreground selection using QTL specific markers, recombinant selection using flanking markers, and background selection were performed. BC1F3-derived lines with different combinations of qDTY 2.2 , qDTY 3.1, and qDTY 12.1 were evaluated under both reproductive stage drought stress and non-stress during the dry seasons of 2013 and 2014 at IRRI.

* Title and MeSH Headings from MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine.