ID | 52272 |
フルテキストURL | |
著者 |
Kongprakhon, Phinyarat
Kasetsart Univ Chalermphrakiat Sakon Nakhon Prov, Fac Nat Resources & Agro Ind
Cuesta-Marcos, Alfonso
Oregon State Univ, Dept Crop & Soil Sci
Hayes, Patrick M.
Oregon State Univ, Dept Crop & Soil Sci
Richardson, Kelley L.
ARS, USDA
Sirithunya, Pattama
Rajamangala Univ Technol Lanna, Lampang Agr Res & Training Ctr
Steffenson, Brian
Univ Minnesota, Dept Plant Pathol
Toojinda, Theerayuth
Kasetsart Univ, Rice Gene Discovery Unit, Natl Res Ctr Genet Engn & Biotechnol
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抄録 | There are prior reports of Pyricularia grisea-the causal agent of blast of rice-causing disease in barley. In order to determine the specificity of this resistance in barley, we extended our previous mapping efforts to include blast isolates from barley and rice grown in Thailand and we assessed two resistance phenotypes: leaf blast (LB) and neck blast (NB). The largest-effect resistance QTL, on chromosome I H, was associated with NB and LB and is located in a region rich in resistance genes, including QTL conferring resistance to stripe rust (incited by Puccinia striiformis f. sp. hordei) and the mildew (Blumeria graminis f. sp. hordei) resistance gene Mla. The LB, NB and mildew resistance alleles trace to one parent (Baronesse) whereas the stripe rust resistance allele traces to the other parent (BCD47) of the mapping population. Baronesse is the susceptible recurrent parent of a set of near-isogenic lines (NILs) for three stripe rust resistance QTL, including one on 1H. Unigene (EST) derived single nucleotide polymorphism haplotypes of these NILs were aligned with the blast mapping population QTL using Mla as an anchor. Baronesse and all NILs without the 1H introgression were resistant to LB and NB. However, two NILs with the I H introgression were resistant to LB and NB. Both are resistant to stripe rust. Therefore, the QTL conferring resistance to stripe rust is separable by recombination from the blast resistance QTL.
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キーワード | rice blast
barley
resistance gene
QTL mapping
near-isolines
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発行日 | 2009-12
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出版物タイトル |
Breeding Science
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巻 | 59巻
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号 | 4号
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開始ページ | 341
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終了ページ | 349
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ISSN | 1344-7610
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資料タイプ |
学術雑誌論文
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言語 |
英語
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著作権者 | Copyright © 2009 by JAPANESE SOCIETY OF BREEDING
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論文のバージョン | publisher
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査読 |
有り
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DOI | |
Web of Science KeyUT |