Scientia Agricultura Sinica ›› 2005, Vol. 38 ›› Issue (09): 1796-1800 .

• PLANT PROTECTION • Previous Articles     Next Articles

Identification of AFLP Markers Linked to Lr19 Resistance to Wheat Leaf Rust

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  1. 河北农业大学植物病理系
  • Received:2005-03-20 Revised:1900-01-01 Online:2005-09-10 Published:2005-09-10

Abstract: AFLP analysis was carried out on Thatcher, twenty three near?isogenic lines and F2 generation of Tclr19×Thatcher and developed molecular markers for gene Lr19 resistance to wheat leaf rust. Seven markers linked to Lr19 resistance traits were obtained, which were P-AGT/M-GAG289bp (3.3cM), P-ACA/M-GGT102bp (4.1cM), P-ACA/M-GGT106bp (4.1cM), P-AAC/M- CAG123bp (4.9cM), P-AAC/M-GGT203bp (5.0cM), P-ACA/M-GGT290bp (5.7cM), and P-ATC/M-GAG293bp (9.6cM). All of these specific fragments were isolated from the polyacrylamide gels, re-amplified, cloned and sequenced. The research may facilitate genetic mapping, physical mapping, and eventual cloning of Lr19 gene.

Key words: wheat, Lr19, molecular marker, AFLP

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