Identification of QTL for adult-plant resistance to powdery mildew in Chinese wheat landrace Pingyuan 50
Powdery mildew caused by Blumeria graminis f. sp. tritici is one of the major wheat diseases worldwide. The Chinese wheat landrace Pingyuan 50 has shown adult-plant resistance (APR) to powdery mildew in the field for over 60 years. To dissect the genetic basis of APR to powdery mildew in this cultiv...
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KeAi Communications Co., Ltd.
2014-10-01
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| Series: | Crop Journal |
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| Online Access: | http://www.sciencedirect.com/science/article/pii/S2214514114000415 |
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| author | Muhammad Azeem Asad Bin Bai Caixia Lan Jun Yan Xianchun Xia Yong Zhang Zhonghu He |
| author_facet | Muhammad Azeem Asad Bin Bai Caixia Lan Jun Yan Xianchun Xia Yong Zhang Zhonghu He |
| author_sort | Muhammad Azeem Asad |
| collection | DOAJ |
| description | Powdery mildew caused by Blumeria graminis f. sp. tritici is one of the major wheat diseases worldwide. The Chinese wheat landrace Pingyuan 50 has shown adult-plant resistance (APR) to powdery mildew in the field for over 60 years. To dissect the genetic basis of APR to powdery mildew in this cultivar, a mapping population of 137 double haploid (DH) lines derived from Pingyuan 50/Mingxian 169 was evaluated in replicated field trials for two years in Beijing (2009–2010 and 2010–2011) and one year in Anyang (2009–2010). A total of 540 polymorphic SSR markers were genotyped on the entire population for construction of a linkage map and QTL analysis. Three QTL were mapped on chromosomes 2BS (QPm.caas-2BS.2), 3BS (QPm.caas-3BS), and 5AL (QPm.caas-5AL) with the resistance alleles contributed by Pingyuan 50 explaining 5.3%, 10.2%, and 9.1% of the phenotypic variances, respectively, and one QTL on chromosome 3BL (QPm.caas-3BL) derived from Mingxian 169 accounting for 18.1% of the phenotypic variance. QPm.caas-3BS, QPm.caas-3BL, and QPm.caas-5AL appear to be new powdery mildew APR loci. QPm.caas-2BS.2 and QPm.caas-5AL are possibly pleiotropic or closely linked resistance loci to stripe rust resistance QTL. Pingyuan 50 could be a potential genetic resource to facilitate breeding for improved APR to both powdery mildew and stripe rust. |
| first_indexed | 2024-12-19T23:40:36Z |
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| issn | 2095-5421 2214-5141 |
| language | English |
| last_indexed | 2024-12-19T23:40:36Z |
| publishDate | 2014-10-01 |
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| series | Crop Journal |
| spelling | doaj.art-6ab039e504e74f2c9958aefc3825b3ab2022-12-21T20:01:28ZengKeAi Communications Co., Ltd.Crop Journal2095-54212214-51412014-10-0125308314doi:10.1016/j.cj.2014.04.009Identification of QTL for adult-plant resistance to powdery mildew in Chinese wheat landrace Pingyuan 50Muhammad Azeem Asad0Bin Bai1Caixia Lan2Jun Yan3Xianchun Xia4Yong Zhang5Zhonghu He6Institute of Crop Science, National Wheat Improvement Center/The National Key Facility for Crop Gene Resources and Genetic Improvement, Chinese Academy of Agricultural Sciences (CAAS), Beijing 100081, ChinaWheat Research Institute, Gansu Academy of Agricultural Sciences, Lanzhou 730070, ChinaInstitute of Crop Science, National Wheat Improvement Center/The National Key Facility for Crop Gene Resources and Genetic Improvement, Chinese Academy of Agricultural Sciences (CAAS), Beijing 100081, ChinaCotton Research Institute, Chinese Academy of Agricultural Sciences (CAAS), Anyang 455000, ChinaInstitute of Crop Science, National Wheat Improvement Center/The National Key Facility for Crop Gene Resources and Genetic Improvement, Chinese Academy of Agricultural Sciences (CAAS), Beijing 100081, ChinaInstitute of Crop Science, National Wheat Improvement Center/The National Key Facility for Crop Gene Resources and Genetic Improvement, Chinese Academy of Agricultural Sciences (CAAS), Beijing 100081, ChinaInstitute of Crop Science, National Wheat Improvement Center/The National Key Facility for Crop Gene Resources and Genetic Improvement, Chinese Academy of Agricultural Sciences (CAAS), Beijing 100081, China;International Maize and Wheat Improvement Center (CIMMYT), China Office, c/o CAAS, Beijing 100081, ChinaPowdery mildew caused by Blumeria graminis f. sp. tritici is one of the major wheat diseases worldwide. The Chinese wheat landrace Pingyuan 50 has shown adult-plant resistance (APR) to powdery mildew in the field for over 60 years. To dissect the genetic basis of APR to powdery mildew in this cultivar, a mapping population of 137 double haploid (DH) lines derived from Pingyuan 50/Mingxian 169 was evaluated in replicated field trials for two years in Beijing (2009–2010 and 2010–2011) and one year in Anyang (2009–2010). A total of 540 polymorphic SSR markers were genotyped on the entire population for construction of a linkage map and QTL analysis. Three QTL were mapped on chromosomes 2BS (QPm.caas-2BS.2), 3BS (QPm.caas-3BS), and 5AL (QPm.caas-5AL) with the resistance alleles contributed by Pingyuan 50 explaining 5.3%, 10.2%, and 9.1% of the phenotypic variances, respectively, and one QTL on chromosome 3BL (QPm.caas-3BL) derived from Mingxian 169 accounting for 18.1% of the phenotypic variance. QPm.caas-3BS, QPm.caas-3BL, and QPm.caas-5AL appear to be new powdery mildew APR loci. QPm.caas-2BS.2 and QPm.caas-5AL are possibly pleiotropic or closely linked resistance loci to stripe rust resistance QTL. Pingyuan 50 could be a potential genetic resource to facilitate breeding for improved APR to both powdery mildew and stripe rust.http://www.sciencedirect.com/science/article/pii/S2214514114000415Triticum aestivum LBlumeria graminis f. sp. triticiDisease resistanceQuantitative trait loci |
| spellingShingle | Muhammad Azeem Asad Bin Bai Caixia Lan Jun Yan Xianchun Xia Yong Zhang Zhonghu He Identification of QTL for adult-plant resistance to powdery mildew in Chinese wheat landrace Pingyuan 50 Crop Journal Triticum aestivum L Blumeria graminis f. sp. tritici Disease resistance Quantitative trait loci |
| title | Identification of QTL for adult-plant resistance to powdery mildew in Chinese wheat landrace Pingyuan 50 |
| title_full | Identification of QTL for adult-plant resistance to powdery mildew in Chinese wheat landrace Pingyuan 50 |
| title_fullStr | Identification of QTL for adult-plant resistance to powdery mildew in Chinese wheat landrace Pingyuan 50 |
| title_full_unstemmed | Identification of QTL for adult-plant resistance to powdery mildew in Chinese wheat landrace Pingyuan 50 |
| title_short | Identification of QTL for adult-plant resistance to powdery mildew in Chinese wheat landrace Pingyuan 50 |
| title_sort | identification of qtl for adult plant resistance to powdery mildew in chinese wheat landrace pingyuan 50 |
| topic | Triticum aestivum L Blumeria graminis f. sp. tritici Disease resistance Quantitative trait loci |
| url | http://www.sciencedirect.com/science/article/pii/S2214514114000415 |
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