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231225s2021 xx |||||o 00| ||eng c |
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|a 10.1270/jsbbs.21014
|2 doi
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|a eng
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1 |
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|a Kawasaki, Mitsuyo
|e verfasserin
|4 aut
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| 245 |
1 |
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|a Development of novel clubroot resistant rapeseed lines (Brassica napus L.) effective against Japanese field isolates by marker assisted selection
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|c 2021
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|a Text
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|a ƒaComputermedien
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|a ƒa Online-Ressource
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|a Date Revised 29.01.2022
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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 Clubroot is an important disease infectible to cruciferous plants and a major threat to rapeseed production in Japan. However, no clubroot resistant rapeseed cultivars have been released. We surveyed pathotype variation of six isolates collected from rapeseed fields and found they were classified as pathotype groups 2 and 4 using Japanese F1 Chinese cabbage cultivars. We produced the resynthesized clubroot resistant Brassica napus harboring two resistant loci, Crr1 and Crr2, by interspecific crossing and developed resistant rapeseed lines for southern and northern regions by marker-assisted selection and backcrossing. We improved the DNA marker for erucic acid content to remove linkage drag between Crr1 and high erucic acid content and successfully selected lines with clubroot resistance and zero erucic acid for northern regions. A novel line, 'Tohoku No. 106', suitable for southern regions showed stable resistance against all six isolates and high performance in infested fields. We conclude that Crr1 and Crr2 are important genes for CR rapeseed breeding and marker-assisted selection is effective in improving clubroot resistance
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|a Journal Article
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|a Brassica napus
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| 650 |
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|a clubroot
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| 650 |
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|a disease resistance
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| 650 |
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4 |
|a erucic acid
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| 650 |
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4 |
|a rapeseed
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| 700 |
1 |
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|a Ohara, Takayoshi
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Ishida, Masahiko
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Takahata, Yoshihito
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Hatakeyama, Katsunori
|e verfasserin
|4 aut
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| 773 |
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|i Enthalten in
|t Breeding science
|d 1998
|g 71(2021), 5 vom: 25. Dez., Seite 528-537
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|x 1344-7610
|7 nnas
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|g volume:71
|g year:2021
|g number:5
|g day:25
|g month:12
|g pages:528-537
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|u http://dx.doi.org/10.1270/jsbbs.21014
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