Effect of cleistogamy on Fusarium head blight resistance in wheat
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- Kubo Katashi
- National Agricultural Research Center for Kyushu Okinawa Region
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- Kawada Naoyuki
- National Agricultural Research Center for Kyushu Okinawa Region
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- Fujita Masaya
- National Agricultural Research Center for Kyushu Okinawa Region
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- Hatta Koichi
- National Agricultural Research Center for Kyushu Okinawa Region
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- Oda Shunsuke
- National Institute of Crop Science
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- Nakajima Takashi
- National Agricultural Research Center for Kyushu Okinawa Region
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In wheat (Triticum aestivum L.), Fusarium head blight (FHB) resistance is an important breeding target to reduce yield losses and mycotoxin contamination. We hypothesized that cleistogamous (CL, closed flowering) cultivars have a lower risk of FHB infection than chasmogamous (CH, opened flowering) cultivars because FHB infection usually occurs in the inside of florets or extracted anthers and FHB resistance in CL cultivars decreases mycotoxin accumulation. To test these hypotheses, we produced 126 recombinant inbred lines (RILs) derived from a cross between common wheat varieties ‘U24’ (CL variety) and ‘Saikai 165’ (CH variety). Although ‘U24’ and ‘Saikai 165’ are both resistant to FHB infection, ‘U24’ is susceptible to FHB spread, grain deterioration, and mycotoxin accumulation compared with ‘Saikai 165’. Among the RILs, there were significant differences in all of the tested traits. Although the CL RILs showed less initial FHB infection than CH RILs, there were no significant differences in grain deterioration and mycotoxin accumulation between the 2 groups. An FHB-resistant quantitative trait locus (QTL) located on chromosome 3BS increased resistance to FHB spread, grain deterioration, and mycotoxin accumulation; however, not all CL RILs with this QTL accumulated less mycotoxin than ‘Saikai 165’.<br>
収録刊行物
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- Breeding Science
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Breeding Science 60 (4), 405-411, 2010
日本育種学会
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詳細情報 詳細情報について
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- CRID
- 1390001204722831744
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- NII論文ID
- 130004146250
- 10027120389
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- NII書誌ID
- AA11317194
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- ISSN
- 13473735
- 13447610
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- NDL書誌ID
- 10925590
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- 本文言語コード
- en
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- データソース種別
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- JaLC
- NDL
- Crossref
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