TITLE:
Applying Molecular Breeding to Improve Soybean Rust Resistance in Vietnamese Elite Soybean
AUTHORS:
Tran Dang Khanh, Truong Quoc Anh, Bui Chi Buu, Tran Dang Xuan
KEYWORDS:
Rust Resistant Gene; Soybean; Marker Assisted Selection; Molecular Marker
JOURNAL NAME:
American Journal of Plant Sciences,
Vol.4 No.1,
January
30,
2013
ABSTRACT: Soybean production in Vietnam has recently been threatened by the widespread dissemination of soybean rust (SBR) caused by the fungus Phakopsora pachyrhizi. Application of molecular breeding is considered as a feasible method to improve soybean rust resistance and minimize the adverse effects from overuse fungicides in this country. In this study, we have successfully applied molecular markers in a backcross breeding program to introgress the Rpp5 gene of SBR resistance into HL203, an elite Vietnamese soybean variety, from two donor lines of DT2000 and Stuart 99084B-28. The plants in BC4F1 generation had maximum contribution from the recurrent parents and retained SBR resistance gene.