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Genetic and Molecular Mapping of Stripe Rust Resistance Genes in Wheat Cultivar Zhongliang 12
Author(s) -
Ma Dongfang,
Peng Fei,
Fang Zhengwu,
Chao Kaixiang,
Jing Jinxue,
Zhang Changqing
Publication year - 2015
Publication title -
journal of phytopathology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.53
H-Index - 60
eISSN - 1439-0434
pISSN - 0931-1785
DOI - 10.1111/jph.12284
Subject(s) - biology , rust (programming language) , gene , genetics , cultivar , chromosome , stripe rust , marker assisted selection , genetic marker , plant disease resistance , botany , computer science , programming language
Stripe rust, caused by Puccinia striiformis f.sp. tritici ( Pst ), is one of the most widespread and destructive diseases of wheat worldwide. Resistance breeding is constantly pursued for decades to tackle the variations of prevalent Pst races. Zhongliang 12 has strong resistance to abiotic stresses, wide adaptability, higher resistance to stripe rust and excellent biological characteristics. To identify the resistance gene(s) against stripe rust, Zhongliang 12 was crossed with stripe rust susceptible genotype Mingxian 169, and F 1 , F 2 , F 2 : 3 and BC 1 progenies were tested with Chinese Pst race CYR 30 and CYR 31 in seedling stage in greenhouse. Zhongliang 12 possessed different dominant genes for resistance to each race. Linkage maps were constructed with four simple sequence repeats ( SSRs ) markers, Xwmc695 , Xcfd20 , Xbarc121 and Xbarc49 , for the gene on wheat chromosome 7 AL conferring resistance to CYR 30 (temporarily designated as Yrzhong12‐1 ) with genetic distance ranging from 3.1 to 10.8 cM and four SSR markers, Xpsp3003 , Xcfd2129 , Xwmc673 and Xwmc51 , for the gene on wheat chromosome 1 AL conferring resistance to CYR 31 (temporarily designated as Yrzhong12‐2 ) with genetic distance ranging from 3.9 cM to 9.3 cM. The molecular markers closely linked to each gene should be useful in marker‐assisted selection in breeding programmes for against stripe rust.