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231225s2021 xx |||||o 00| ||eng c |
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|a 10.1270/jsbbs.21015
|2 doi
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|a pubmed24n1114.xml
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|a (DE-627)NLM334484030
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|a (NLM)34912176
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|a DE-627
|b ger
|c DE-627
|e rakwb
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|a eng
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| 100 |
1 |
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|a Ota, Yuya
|e verfasserin
|4 aut
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| 245 |
1 |
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|a QTL analysis for brown spot resistance in American rice cultivar 'Dawn'
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|c 2021
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| 336 |
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|a Text
|b txt
|2 rdacontent
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|a ƒaComputermedien
|b c
|2 rdamedia
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| 338 |
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|a ƒa Online-Ressource
|b cr
|2 rdacarrier
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|a Date Revised 17.12.2021
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|a published: Print-Electronic
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|a Citation Status PubMed-not-MEDLINE
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|a Copyright © 2021 by JAPANESE SOCIETY OF BREEDING.
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|a Rice brown spot (BS), caused by Bipolaris oryzae, causes yield loss and deterioration of grain quality. Using single-nucleotide polymorphism (SNP) markers, we conducted quantitative trait locus (QTL) analysis of BS resistance in backcross inbred lines (BILs) from a cross between an American rice cultivar, 'Dawn' (resistant), and 'Koshihikari' (susceptible). Four QTLs for BS resistance were detected in a three-year field evaluation, and 'Dawn' contributed the resistance alleles at all QTLs. The QTL with the greatest effect, qBSR6-kd, explained 15.1% to 20.3% of the total phenotypic variation. Although disease score and days to heading (DTH) were negatively correlated in all three years, qBSR6-kd was located near a QTL for DTH at which the 'Dawn' allele promoted heading. Another BS resistance QTL (qBSR3.1-kd) was unlinked to the QTLs for DTH. Therefore, these two QTLs are likely to be useful for breeding BS-resistant varieties without delaying heading. The other two BS resistance QTLs (qBSR3.2-kd and qBSR7-kd) were located near DTH QTLs at which the 'Dawn' alleles delayed heading. The QTLs reported here will be good candidates for developing BS-resistant cultivars
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4 |
|a Journal Article
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| 650 |
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4 |
|a Bipolaris oryzae
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| 650 |
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4 |
|a Oryza sativa L.
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| 650 |
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4 |
|a QTL analysis
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| 650 |
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4 |
|a brown spot
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| 650 |
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4 |
|a heading date
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| 650 |
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4 |
|a resistance
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| 650 |
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4 |
|a rice
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| 700 |
1 |
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|a Matsumoto, Kengo
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Nakayama, Yukinori
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Yamakawa, Tomohiro
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Ohno, Teppei
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Mizobuchi, Ritsuko
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Sato, Hiroyuki
|e verfasserin
|4 aut
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| 773 |
0 |
8 |
|i Enthalten in
|t Breeding science
|d 1998
|g 71(2021), 4 vom: 15. Sept., Seite 491-495
|w (DE-627)NLM098238299
|x 1344-7610
|7 nnns
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| 773 |
1 |
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|g volume:71
|g year:2021
|g number:4
|g day:15
|g month:09
|g pages:491-495
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|u http://dx.doi.org/10.1270/jsbbs.21015
|3 Volltext
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|d 71
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|e 4
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|h 491-495
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