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Molecular Mapping of Wheat Leaf Rust Resistance Gene Lr42
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| Zeitschriftentitel: | Crop Science |
|---|---|
| Personen und Körperschaften: | , , , |
| In: | Crop Science, 50, 2010, 1, S. 59-66 |
| Format: | E-Article |
| Sprache: | Englisch |
| veröffentlicht: |
Wiley
|
| Schlagwörter: |
| author_facet |
Sun, Xiaochun Bai, Guihua Carver, Brett F. Bowden, Robert Sun, Xiaochun Bai, Guihua Carver, Brett F. Bowden, Robert |
|---|---|
| author |
Sun, Xiaochun Bai, Guihua Carver, Brett F. Bowden, Robert |
| spellingShingle |
Sun, Xiaochun Bai, Guihua Carver, Brett F. Bowden, Robert Crop Science Molecular Mapping of Wheat Leaf Rust Resistance Gene Lr42 Agronomy and Crop Science |
| author_sort |
sun, xiaochun |
| spelling |
Sun, Xiaochun Bai, Guihua Carver, Brett F. Bowden, Robert 0011-183X 1435-0653 Wiley Agronomy and Crop Science http://dx.doi.org/10.2135/cropsci2009.01.0049 <jats:title>ABSTRACT</jats:title><jats:p>Leaf rust, caused by <jats:italic>Puccinia triticina</jats:italic> Eriks., is an important foliar disease of wheat (<jats:italic>Triticum aestivum</jats:italic> L.) worldwide. Leaf rust resistance gene <jats:italic>Lr42</jats:italic> from <jats:italic>Aegilops tauschii</jats:italic> Coss. has been used as a source of rust resistance in breeding programs. To identify molecular markers closely linked to <jats:italic>Lr42</jats:italic>, a segregating population of near‐isogenic lines contrasting for the presence of <jats:italic>Lr42</jats:italic> was developed in the hard winter wheat cultivar Century background and evaluated for rust infection type at both seedling and adult‐plant stages. Simple sequence repeat (SSR) markers were screened using bulked‐segregant analysis. Two markers closely linked to <jats:italic>Lr42</jats:italic> were identified on chromosome 1DS. The closest marker, <jats:italic>Xwmc432</jats:italic>, is about 0.8 cM from <jats:italic>Lr42</jats:italic>. Physical mapping of both SSR markers using Chinese Spring nullitetrasomic and ditelosomic genetic stocks confirmed that the markers linked to <jats:italic>Lr42</jats:italic> were on 1DS. Markers for <jats:italic>Lr42</jats:italic> were highly polymorphic between parents and among a diverse set of wheat germplasm collected from several countries, indicating that these markers are useful for marker‐assisted selection for <jats:italic>Lr42</jats:italic>.</jats:p> Molecular Mapping of Wheat Leaf Rust Resistance Gene <i>Lr42</i> Crop Science |
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10.2135/cropsci2009.01.0049 |
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Wiley, 2010 |
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| title |
Molecular Mapping of Wheat Leaf Rust Resistance Gene Lr42 |
| title_unstemmed |
Molecular Mapping of Wheat Leaf Rust Resistance Gene Lr42 |
| title_full |
Molecular Mapping of Wheat Leaf Rust Resistance Gene Lr42 |
| title_fullStr |
Molecular Mapping of Wheat Leaf Rust Resistance Gene Lr42 |
| title_full_unstemmed |
Molecular Mapping of Wheat Leaf Rust Resistance Gene Lr42 |
| title_short |
Molecular Mapping of Wheat Leaf Rust Resistance Gene Lr42 |
| title_sort |
molecular mapping of wheat leaf rust resistance gene <i>lr42</i> |
| topic |
Agronomy and Crop Science |
| url |
http://dx.doi.org/10.2135/cropsci2009.01.0049 |
| publishDate |
2010 |
| physical |
59-66 |
| description |
<jats:title>ABSTRACT</jats:title><jats:p>Leaf rust, caused by <jats:italic>Puccinia triticina</jats:italic> Eriks., is an important foliar disease of wheat (<jats:italic>Triticum aestivum</jats:italic> L.) worldwide. Leaf rust resistance gene <jats:italic>Lr42</jats:italic> from <jats:italic>Aegilops tauschii</jats:italic> Coss. has been used as a source of rust resistance in breeding programs. To identify molecular markers closely linked to <jats:italic>Lr42</jats:italic>, a segregating population of near‐isogenic lines contrasting for the presence of <jats:italic>Lr42</jats:italic> was developed in the hard winter wheat cultivar Century background and evaluated for rust infection type at both seedling and adult‐plant stages. Simple sequence repeat (SSR) markers were screened using bulked‐segregant analysis. Two markers closely linked to <jats:italic>Lr42</jats:italic> were identified on chromosome 1DS. The closest marker, <jats:italic>Xwmc432</jats:italic>, is about 0.8 cM from <jats:italic>Lr42</jats:italic>. Physical mapping of both SSR markers using Chinese Spring nullitetrasomic and ditelosomic genetic stocks confirmed that the markers linked to <jats:italic>Lr42</jats:italic> were on 1DS. Markers for <jats:italic>Lr42</jats:italic> were highly polymorphic between parents and among a diverse set of wheat germplasm collected from several countries, indicating that these markers are useful for marker‐assisted selection for <jats:italic>Lr42</jats:italic>.</jats:p> |
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| author | Sun, Xiaochun, Bai, Guihua, Carver, Brett F., Bowden, Robert |
| author_facet | Sun, Xiaochun, Bai, Guihua, Carver, Brett F., Bowden, Robert, Sun, Xiaochun, Bai, Guihua, Carver, Brett F., Bowden, Robert |
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| description | <jats:title>ABSTRACT</jats:title><jats:p>Leaf rust, caused by <jats:italic>Puccinia triticina</jats:italic> Eriks., is an important foliar disease of wheat (<jats:italic>Triticum aestivum</jats:italic> L.) worldwide. Leaf rust resistance gene <jats:italic>Lr42</jats:italic> from <jats:italic>Aegilops tauschii</jats:italic> Coss. has been used as a source of rust resistance in breeding programs. To identify molecular markers closely linked to <jats:italic>Lr42</jats:italic>, a segregating population of near‐isogenic lines contrasting for the presence of <jats:italic>Lr42</jats:italic> was developed in the hard winter wheat cultivar Century background and evaluated for rust infection type at both seedling and adult‐plant stages. Simple sequence repeat (SSR) markers were screened using bulked‐segregant analysis. Two markers closely linked to <jats:italic>Lr42</jats:italic> were identified on chromosome 1DS. The closest marker, <jats:italic>Xwmc432</jats:italic>, is about 0.8 cM from <jats:italic>Lr42</jats:italic>. Physical mapping of both SSR markers using Chinese Spring nullitetrasomic and ditelosomic genetic stocks confirmed that the markers linked to <jats:italic>Lr42</jats:italic> were on 1DS. Markers for <jats:italic>Lr42</jats:italic> were highly polymorphic between parents and among a diverse set of wheat germplasm collected from several countries, indicating that these markers are useful for marker‐assisted selection for <jats:italic>Lr42</jats:italic>.</jats:p> |
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| imprint | Wiley, 2010 |
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| institution | DE-D275, DE-Bn3, DE-Brt1, DE-D161, DE-Gla1, DE-Zi4, DE-15, DE-Pl11, DE-Rs1, DE-105, DE-14, DE-Ch1, DE-L229 |
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| spelling | Sun, Xiaochun Bai, Guihua Carver, Brett F. Bowden, Robert 0011-183X 1435-0653 Wiley Agronomy and Crop Science http://dx.doi.org/10.2135/cropsci2009.01.0049 <jats:title>ABSTRACT</jats:title><jats:p>Leaf rust, caused by <jats:italic>Puccinia triticina</jats:italic> Eriks., is an important foliar disease of wheat (<jats:italic>Triticum aestivum</jats:italic> L.) worldwide. Leaf rust resistance gene <jats:italic>Lr42</jats:italic> from <jats:italic>Aegilops tauschii</jats:italic> Coss. has been used as a source of rust resistance in breeding programs. To identify molecular markers closely linked to <jats:italic>Lr42</jats:italic>, a segregating population of near‐isogenic lines contrasting for the presence of <jats:italic>Lr42</jats:italic> was developed in the hard winter wheat cultivar Century background and evaluated for rust infection type at both seedling and adult‐plant stages. Simple sequence repeat (SSR) markers were screened using bulked‐segregant analysis. Two markers closely linked to <jats:italic>Lr42</jats:italic> were identified on chromosome 1DS. The closest marker, <jats:italic>Xwmc432</jats:italic>, is about 0.8 cM from <jats:italic>Lr42</jats:italic>. Physical mapping of both SSR markers using Chinese Spring nullitetrasomic and ditelosomic genetic stocks confirmed that the markers linked to <jats:italic>Lr42</jats:italic> were on 1DS. Markers for <jats:italic>Lr42</jats:italic> were highly polymorphic between parents and among a diverse set of wheat germplasm collected from several countries, indicating that these markers are useful for marker‐assisted selection for <jats:italic>Lr42</jats:italic>.</jats:p> Molecular Mapping of Wheat Leaf Rust Resistance Gene <i>Lr42</i> Crop Science |
| spellingShingle | Sun, Xiaochun, Bai, Guihua, Carver, Brett F., Bowden, Robert, Crop Science, Molecular Mapping of Wheat Leaf Rust Resistance Gene Lr42, Agronomy and Crop Science |
| title | Molecular Mapping of Wheat Leaf Rust Resistance Gene Lr42 |
| title_full | Molecular Mapping of Wheat Leaf Rust Resistance Gene Lr42 |
| title_fullStr | Molecular Mapping of Wheat Leaf Rust Resistance Gene Lr42 |
| title_full_unstemmed | Molecular Mapping of Wheat Leaf Rust Resistance Gene Lr42 |
| title_short | Molecular Mapping of Wheat Leaf Rust Resistance Gene Lr42 |
| title_sort | molecular mapping of wheat leaf rust resistance gene <i>lr42</i> |
| title_unstemmed | Molecular Mapping of Wheat Leaf Rust Resistance Gene Lr42 |
| topic | Agronomy and Crop Science |
| url | http://dx.doi.org/10.2135/cropsci2009.01.0049 |