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QTL mapping of adult-plant resistances to stripe rust and leaf rust in Chinese wheat cultivar Bainong 64.
Theor Appl Genet. 2012 Oct; 125(6):1253-62.TA

Abstract

Stripe rust and leaf rust, caused by Puccinia striiformis Westend. f. sp. tritici Erikss. and P. triticina, respectively, are devastating fungal diseases of common wheat (Triticum aestivum L.). Chinese wheat cultivar Bainong 64 has maintained acceptable adult-plant resistance (APR) to stripe rust, leaf rust and powdery mildew for more than 10 years. The aim of this study was to identify quantitative trait loci/locus (QTL) for resistance to the two rusts in a population of 179 doubled haploid (DH) lines derived from Bainong 64 × Jingshuang 16. The DH lines were planted in randomized complete blocks with three replicates at four locations. Stripe rust tests were conducted using a mixture of currently prevalent P. striiformis races, and leaf rust tests were performed with P. triticina race THTT. Leaf rust severities were scored two or three times, whereas maximum disease severities (MDS) were recorded for stripe rust. Using bulked segregant analysis (BSA) and simple sequence repeat (SSR) markers, five independent loci for APR to two rusts were detected. The QTL on chromosomes 1BL and 6BS contributed by Bainong 64 conferred resistance to both diseases. The loci identified on chromosomes 7AS and 4DL had minor effects on stripe rust response, whereas another locus, close to the centromere on chromosome 6BS, had a significant effect only on leaf rust response. The loci located on chromosomes 1BL and 4DL also had significant effects on powdery mildew response. These were located at the same positions as the Yr29/Lr46 and Yr46/Lr67 genes, respectively. The multiple disease resistance locus for APR on chromosome 6BS appears to be new. All three genes and their closely linked molecular markers could be used in breeding wheat cultivars with durable resistance to multiple diseases.

Authors+Show Affiliations

Institute of Crop Science, National Wheat Improvement Center/The National Key Facility for Crop Gene Resources and Genetic Improvement, Chinese Academy of Agricultural Sciences (CAAS), 12 Zhongguancun South Street, Beijing, 100081, China.No affiliation info availableNo affiliation info availableNo affiliation info availableNo affiliation info availableNo affiliation info availableNo affiliation info availableNo affiliation info availableNo affiliation info availableNo affiliation info available

Pub Type(s)

Journal Article
Research Support, Non-U.S. Gov't

Language

eng

PubMed ID

22806327

Citation

Ren, Yan, et al. "QTL Mapping of Adult-plant Resistances to Stripe Rust and Leaf Rust in Chinese Wheat Cultivar Bainong 64." TAG. Theoretical and Applied Genetics. Theoretische Und Angewandte Genetik, vol. 125, no. 6, 2012, pp. 1253-62.
Ren Y, Li Z, He Z, et al. QTL mapping of adult-plant resistances to stripe rust and leaf rust in Chinese wheat cultivar Bainong 64. Theor Appl Genet. 2012;125(6):1253-62.
Ren, Y., Li, Z., He, Z., Wu, L., Bai, B., Lan, C., Wang, C., Zhou, G., Zhu, H., & Xia, X. (2012). QTL mapping of adult-plant resistances to stripe rust and leaf rust in Chinese wheat cultivar Bainong 64. TAG. Theoretical and Applied Genetics. Theoretische Und Angewandte Genetik, 125(6), 1253-62. https://doi.org/10.1007/s00122-012-1910-y
Ren Y, et al. QTL Mapping of Adult-plant Resistances to Stripe Rust and Leaf Rust in Chinese Wheat Cultivar Bainong 64. Theor Appl Genet. 2012;125(6):1253-62. PubMed PMID: 22806327.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - QTL mapping of adult-plant resistances to stripe rust and leaf rust in Chinese wheat cultivar Bainong 64. AU - Ren,Yan, AU - Li,Zaifeng, AU - He,Zhonghu, AU - Wu,Ling, AU - Bai,Bin, AU - Lan,Caixia, AU - Wang,Cuifen, AU - Zhou,Gang, AU - Zhu,Huazhong, AU - Xia,Xianchun, Y1 - 2012/07/18/ PY - 2012/03/15/received PY - 2012/05/25/accepted PY - 2012/7/19/entrez PY - 2012/7/19/pubmed PY - 2013/2/9/medline SP - 1253 EP - 62 JF - TAG. Theoretical and applied genetics. Theoretische und angewandte Genetik JO - Theor. Appl. Genet. VL - 125 IS - 6 N2 - Stripe rust and leaf rust, caused by Puccinia striiformis Westend. f. sp. tritici Erikss. and P. triticina, respectively, are devastating fungal diseases of common wheat (Triticum aestivum L.). Chinese wheat cultivar Bainong 64 has maintained acceptable adult-plant resistance (APR) to stripe rust, leaf rust and powdery mildew for more than 10 years. The aim of this study was to identify quantitative trait loci/locus (QTL) for resistance to the two rusts in a population of 179 doubled haploid (DH) lines derived from Bainong 64 × Jingshuang 16. The DH lines were planted in randomized complete blocks with three replicates at four locations. Stripe rust tests were conducted using a mixture of currently prevalent P. striiformis races, and leaf rust tests were performed with P. triticina race THTT. Leaf rust severities were scored two or three times, whereas maximum disease severities (MDS) were recorded for stripe rust. Using bulked segregant analysis (BSA) and simple sequence repeat (SSR) markers, five independent loci for APR to two rusts were detected. The QTL on chromosomes 1BL and 6BS contributed by Bainong 64 conferred resistance to both diseases. The loci identified on chromosomes 7AS and 4DL had minor effects on stripe rust response, whereas another locus, close to the centromere on chromosome 6BS, had a significant effect only on leaf rust response. The loci located on chromosomes 1BL and 4DL also had significant effects on powdery mildew response. These were located at the same positions as the Yr29/Lr46 and Yr46/Lr67 genes, respectively. The multiple disease resistance locus for APR on chromosome 6BS appears to be new. All three genes and their closely linked molecular markers could be used in breeding wheat cultivars with durable resistance to multiple diseases. SN - 1432-2242 UR - https://www.unboundmedicine.com/medline/citation/22806327/QTL_mapping_of_adult_plant_resistances_to_stripe_rust_and_leaf_rust_in_Chinese_wheat_cultivar_Bainong_64_ L2 - https://dx.doi.org/10.1007/s00122-012-1910-y DB - PRIME DP - Unbound Medicine ER -