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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
Sato, Kazuhiro Okayama Univ, Res Inst Bioresources Kaken ID
Steffenson, Brian Univ Minnesota, Dept Plant Pathol
Toojinda, Theerayuth Kasetsart Univ, Rice Gene Discovery Unit, Natl Res Ctr Genet Engn & Biotechnol
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.
キーワード
rice blast
barley
resistance gene
QTL mapping
near-isolines
発行日
2009-12
出版物タイトル
Breeding Science
59巻
4号
開始ページ
341
終了ページ
349
ISSN
1344-7610
資料タイプ
学術雑誌論文
言語
English
著作権者
Copyright © 2009 by JAPANESE SOCIETY OF BREEDING
論文のバージョン
publisher
査読
有り
DOI
Web of Science KeyUT