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Fine-mapping of LrN3B on wheat chromosome arm 3BS, one of the two complementary genes for adult-plant leaf rust resistance.
Wang, Weidong; Li, Huifang; Qiu, Lina; Wang, Huifang; Pan, Wei; Yang, Zuhuan; Wei, Wenxin; Liu, Nannan; Sun, Junna; Hu, Zhaorong; Ma, Jun; Ni, Zhongfu; Li, Yinghui; Sun, Qixin; Xie, Chaojie.
Affiliation
  • Wang W; Frontiers Science Center for Molecular Design Breeding, Key Laboratory of Crop Heterosis and Utilization, Beijing Key Laboratory of Crop Genetic Improvement, China Agricultural University, Beijing, 100193, China.
  • Li H; Tongfang Knowledge Network Digital Publishing Technology Co., LTD, Taiyuan, 030006, Shanxi, China.
  • Qiu L; International Joint Center for the Mechanismic Dissection and Genetic Improvement of Crop Stress Tolerance, College of Agriculture & Resources and Environmental Sciences, Tianjin Agricultural University, Tianjin, 300392, China.
  • Wang H; Lixian Bureau of Agriculture and Rural Affairs, Baoding, 071400, Hebei, China.
  • Pan W; Frontiers Science Center for Molecular Design Breeding, Key Laboratory of Crop Heterosis and Utilization, Beijing Key Laboratory of Crop Genetic Improvement, China Agricultural University, Beijing, 100193, China.
  • Yang Z; Frontiers Science Center for Molecular Design Breeding, Key Laboratory of Crop Heterosis and Utilization, Beijing Key Laboratory of Crop Genetic Improvement, China Agricultural University, Beijing, 100193, China.
  • Wei W; Frontiers Science Center for Molecular Design Breeding, Key Laboratory of Crop Heterosis and Utilization, Beijing Key Laboratory of Crop Genetic Improvement, China Agricultural University, Beijing, 100193, China.
  • Liu N; Frontiers Science Center for Molecular Design Breeding, Key Laboratory of Crop Heterosis and Utilization, Beijing Key Laboratory of Crop Genetic Improvement, China Agricultural University, Beijing, 100193, China.
  • Sun J; Frontiers Science Center for Molecular Design Breeding, Key Laboratory of Crop Heterosis and Utilization, Beijing Key Laboratory of Crop Genetic Improvement, China Agricultural University, Beijing, 100193, China.
  • Hu Z; Frontiers Science Center for Molecular Design Breeding, Key Laboratory of Crop Heterosis and Utilization, Beijing Key Laboratory of Crop Genetic Improvement, China Agricultural University, Beijing, 100193, China.
  • Ma J; Frontiers Science Center for Molecular Design Breeding, Key Laboratory of Crop Heterosis and Utilization, Beijing Key Laboratory of Crop Genetic Improvement, China Agricultural University, Beijing, 100193, China.
  • Ni Z; Frontiers Science Center for Molecular Design Breeding, Key Laboratory of Crop Heterosis and Utilization, Beijing Key Laboratory of Crop Genetic Improvement, China Agricultural University, Beijing, 100193, China.
  • Li Y; Triticeae Research Institute, Sichuan Agricultural University, Chengdu, 611130, Sichuan, China. liyinghui@sicau.edu.cn.
  • Sun Q; Frontiers Science Center for Molecular Design Breeding, Key Laboratory of Crop Heterosis and Utilization, Beijing Key Laboratory of Crop Genetic Improvement, China Agricultural University, Beijing, 100193, China.
  • Xie C; Frontiers Science Center for Molecular Design Breeding, Key Laboratory of Crop Heterosis and Utilization, Beijing Key Laboratory of Crop Genetic Improvement, China Agricultural University, Beijing, 100193, China. xiecj127@126.com.
Theor Appl Genet ; 137(9): 203, 2024 Aug 13.
Article in En | MEDLINE | ID: mdl-39134836
ABSTRACT
The common wheat line 4N0461 showed adult-plant resistance to leaf rust. 4N0461 was crossed with susceptible cultivars Nongda4503 and Shi4185 to map the causal resistance gene(s). Segregation of leaf rust response in F2 populations from both crosses was 9 resistant7 susceptible, indicative of two complementary dominant resistance genes. The genes were located on chromosome arms 3BS and 4BL and temporarily named LrN3B and LrN4B, respectively. Subpopulations from 4N0461 × Nongda4503 with LrN3B segregating as a single allele were used to fine-map LrN3B locus. LrN3B was delineated in a genetic interval of 0.07 cM, corresponding to 106 kb based on the Chinese Spring reference genome (IWGSC RefSeq v1.1). Four genes were annotated in this region, among which TraesCS3B02G014800 and TraesCS3B02G014900 differed between resistant and susceptible genotypes, and both were required for LrN3B resistance in virus-induced gene silencing experiments. Diagnostic markers developed for checking the polymorphism of each candidate gene, can be used for marker-assisted selection in wheat breeding programs.
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Full text: 1 Collection: 01-internacional Database: MEDLINE Main subject: Plant Diseases / Basidiomycota / Triticum / Chromosome Mapping / Genes, Plant / Chromosomes, Plant / Disease Resistance Language: En Journal: Theor Appl Genet Year: 2024 Document type: Article Affiliation country: China Country of publication: Germany
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Full text: 1 Collection: 01-internacional Database: MEDLINE Main subject: Plant Diseases / Basidiomycota / Triticum / Chromosome Mapping / Genes, Plant / Chromosomes, Plant / Disease Resistance Language: En Journal: Theor Appl Genet Year: 2024 Document type: Article Affiliation country: China Country of publication: Germany