Fine Mapping of Two Wheat Powdery Mildew Resistance Genes Located at the Pm1 Cluster
Powdery mildew caused by (DC.) f. sp. () is a globally devastating foliar disease of wheat ( L.). More than a dozen genes against this disease, identified from wheat germplasms of different ploidy levels, have been mapped to the region surrounding the locus on the long arm of chromosome 7A, which...
| Main Authors: | , , , , , |
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| Format: | Article |
| Language: | English |
| Published: |
Wiley
2016-07-01
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| Series: | The Plant Genome |
| Online Access: | https://dl.sciencesocieties.org/publications/tpg/articles/9/2/plantgenome2015.09.0084 |
| _version_ | 1819106623560351744 |
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| author | Junchao Liang Bisheng Fu Wenbin Tang Nasr U. Khan Na Li Zhengqiang Ma |
| author_facet | Junchao Liang Bisheng Fu Wenbin Tang Nasr U. Khan Na Li Zhengqiang Ma |
| author_sort | Junchao Liang |
| collection | DOAJ |
| description | Powdery mildew caused by (DC.) f. sp. () is a globally devastating foliar disease of wheat ( L.). More than a dozen genes against this disease, identified from wheat germplasms of different ploidy levels, have been mapped to the region surrounding the locus on the long arm of chromosome 7A, which forms a resistance ()-gene cluster. and from einkorn wheat ( L.) were two of the genes belonging to this cluster. This study was initiated to fine map these two genes toward map-based cloning. Comparative genomics study showed that macrocolinearity exists between L. chromosome 1 (Bd1) and the – region, which allowed us to develop markers based on the wheat sequences orthologous to genes contained in the Bd1 region. With these and other newly developed and published markers, high-resolution maps were constructed for both and using large F populations. Moreover, a physical map of was constructed through chromosome walking with bacterial artificial chromosome (BAC) clones and comparative mapping. Eventually, and were restricted to a 0.12- and 0.86-cM interval, respectively. Based on the closely linked common markers, , , and (another powdery mildew resistance gene in the cluster) were not allelic to one another. Severe recombination suppression and disruption of synteny were noted in the region encompassing . These results provided useful information for map-based cloning of the genes in the cluster and interpretation of their evolution. |
| first_indexed | 2024-12-22T02:41:05Z |
| format | Article |
| id | doaj.art-72af9760bbba4986bdca130f069df33a |
| institution | Directory Open Access Journal |
| issn | 1940-3372 |
| language | English |
| last_indexed | 2024-12-22T02:41:05Z |
| publishDate | 2016-07-01 |
| publisher | Wiley |
| record_format | Article |
| series | The Plant Genome |
| spelling | doaj.art-72af9760bbba4986bdca130f069df33a2022-12-21T18:41:38ZengWileyThe Plant Genome1940-33722016-07-019210.3835/plantgenome2015.09.0084plantgenome2015.09.0084Fine Mapping of Two Wheat Powdery Mildew Resistance Genes Located at the Pm1 ClusterJunchao LiangBisheng FuWenbin TangNasr U. KhanNa LiZhengqiang MaPowdery mildew caused by (DC.) f. sp. () is a globally devastating foliar disease of wheat ( L.). More than a dozen genes against this disease, identified from wheat germplasms of different ploidy levels, have been mapped to the region surrounding the locus on the long arm of chromosome 7A, which forms a resistance ()-gene cluster. and from einkorn wheat ( L.) were two of the genes belonging to this cluster. This study was initiated to fine map these two genes toward map-based cloning. Comparative genomics study showed that macrocolinearity exists between L. chromosome 1 (Bd1) and the – region, which allowed us to develop markers based on the wheat sequences orthologous to genes contained in the Bd1 region. With these and other newly developed and published markers, high-resolution maps were constructed for both and using large F populations. Moreover, a physical map of was constructed through chromosome walking with bacterial artificial chromosome (BAC) clones and comparative mapping. Eventually, and were restricted to a 0.12- and 0.86-cM interval, respectively. Based on the closely linked common markers, , , and (another powdery mildew resistance gene in the cluster) were not allelic to one another. Severe recombination suppression and disruption of synteny were noted in the region encompassing . These results provided useful information for map-based cloning of the genes in the cluster and interpretation of their evolution.https://dl.sciencesocieties.org/publications/tpg/articles/9/2/plantgenome2015.09.0084 |
| spellingShingle | Junchao Liang Bisheng Fu Wenbin Tang Nasr U. Khan Na Li Zhengqiang Ma Fine Mapping of Two Wheat Powdery Mildew Resistance Genes Located at the Pm1 Cluster The Plant Genome |
| title | Fine Mapping of Two Wheat Powdery Mildew Resistance Genes Located at the Pm1 Cluster |
| title_full | Fine Mapping of Two Wheat Powdery Mildew Resistance Genes Located at the Pm1 Cluster |
| title_fullStr | Fine Mapping of Two Wheat Powdery Mildew Resistance Genes Located at the Pm1 Cluster |
| title_full_unstemmed | Fine Mapping of Two Wheat Powdery Mildew Resistance Genes Located at the Pm1 Cluster |
| title_short | Fine Mapping of Two Wheat Powdery Mildew Resistance Genes Located at the Pm1 Cluster |
| title_sort | fine mapping of two wheat powdery mildew resistance genes located at the pm1 cluster |
| url | https://dl.sciencesocieties.org/publications/tpg/articles/9/2/plantgenome2015.09.0084 |
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