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Evaluation of major rice cultivars for resistance to bacterial seedling rot caused by Burkholderia glumae and identification of Japanese standard cultivars for resistance assessments

Burkholderia glumae causes bacterial seedling rot (BSR) and bacterial grain rot (BGR) in rice (Oryza sativa), both of which are important diseases in Japan. We previously evaluated major Japanese cultivars for BGR resistance and selected standard cultivars for resistance assessments. Here, we assess...

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Autores principales: Mizobuchi, Ritsuko, Fukuoka, Shuichi, Tsuiki, Chikako, Tsushima, Seiya, Sato, Hiroyuki
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Japanese Society of Breeding 2020
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7272248/
https://www.ncbi.nlm.nih.gov/pubmed/32523404
http://dx.doi.org/10.1270/jsbbs.19117
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author Mizobuchi, Ritsuko
Fukuoka, Shuichi
Tsuiki, Chikako
Tsushima, Seiya
Sato, Hiroyuki
author_facet Mizobuchi, Ritsuko
Fukuoka, Shuichi
Tsuiki, Chikako
Tsushima, Seiya
Sato, Hiroyuki
author_sort Mizobuchi, Ritsuko
collection PubMed
description Burkholderia glumae causes bacterial seedling rot (BSR) and bacterial grain rot (BGR) in rice (Oryza sativa), both of which are important diseases in Japan. We previously evaluated major Japanese cultivars for BGR resistance and selected standard cultivars for resistance assessments. Here, we assessed the BSR occurrence rate in cultivars from the World Rice Collection (WRC) and other sources and found wide variation in resistance. Next, we evaluated major Japanese cultivars for BSR resistance and found that two Japanese landraces, ‘Kujuu’ and ‘Aikoku’, showed “strong” resistance; most others were categorized as “medium” or “medium to weak”. We previously developed a near-isogenic line (RBG1-NIL) by introducing the genomic region containing RBG1, a quantitative trait locus (QTL) for BSR resistance, from ‘Nona Bokra’ (indica) into ‘Koshihikari’ (temperate japonica). The resistance level of RBG1-NIL was “strong”, indicating the effectiveness of RBG1 against BSR. The correlation between BSR and BGR resistance scores was low, indicating that it is necessary to introduce QTLs for resistance from different sources to develop cultivars resistant to both BSR and BGR. On the basis of the screening results, we selected standard cultivars for BSR resistance to cover a range of resistance levels.
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spelling pubmed-72722482020-06-09 Evaluation of major rice cultivars for resistance to bacterial seedling rot caused by Burkholderia glumae and identification of Japanese standard cultivars for resistance assessments Mizobuchi, Ritsuko Fukuoka, Shuichi Tsuiki, Chikako Tsushima, Seiya Sato, Hiroyuki Breed Sci Research Paper Burkholderia glumae causes bacterial seedling rot (BSR) and bacterial grain rot (BGR) in rice (Oryza sativa), both of which are important diseases in Japan. We previously evaluated major Japanese cultivars for BGR resistance and selected standard cultivars for resistance assessments. Here, we assessed the BSR occurrence rate in cultivars from the World Rice Collection (WRC) and other sources and found wide variation in resistance. Next, we evaluated major Japanese cultivars for BSR resistance and found that two Japanese landraces, ‘Kujuu’ and ‘Aikoku’, showed “strong” resistance; most others were categorized as “medium” or “medium to weak”. We previously developed a near-isogenic line (RBG1-NIL) by introducing the genomic region containing RBG1, a quantitative trait locus (QTL) for BSR resistance, from ‘Nona Bokra’ (indica) into ‘Koshihikari’ (temperate japonica). The resistance level of RBG1-NIL was “strong”, indicating the effectiveness of RBG1 against BSR. The correlation between BSR and BGR resistance scores was low, indicating that it is necessary to introduce QTLs for resistance from different sources to develop cultivars resistant to both BSR and BGR. On the basis of the screening results, we selected standard cultivars for BSR resistance to cover a range of resistance levels. Japanese Society of Breeding 2020-04 2020-03-19 /pmc/articles/PMC7272248/ /pubmed/32523404 http://dx.doi.org/10.1270/jsbbs.19117 Text en Copyright © 2020 by JAPANESE SOCIETY OF BREEDING http://creativecommons.org/licenses/by-nc-nd/3.0 This is an open access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
spellingShingle Research Paper
Mizobuchi, Ritsuko
Fukuoka, Shuichi
Tsuiki, Chikako
Tsushima, Seiya
Sato, Hiroyuki
Evaluation of major rice cultivars for resistance to bacterial seedling rot caused by Burkholderia glumae and identification of Japanese standard cultivars for resistance assessments
title Evaluation of major rice cultivars for resistance to bacterial seedling rot caused by Burkholderia glumae and identification of Japanese standard cultivars for resistance assessments
title_full Evaluation of major rice cultivars for resistance to bacterial seedling rot caused by Burkholderia glumae and identification of Japanese standard cultivars for resistance assessments
title_fullStr Evaluation of major rice cultivars for resistance to bacterial seedling rot caused by Burkholderia glumae and identification of Japanese standard cultivars for resistance assessments
title_full_unstemmed Evaluation of major rice cultivars for resistance to bacterial seedling rot caused by Burkholderia glumae and identification of Japanese standard cultivars for resistance assessments
title_short Evaluation of major rice cultivars for resistance to bacterial seedling rot caused by Burkholderia glumae and identification of Japanese standard cultivars for resistance assessments
title_sort evaluation of major rice cultivars for resistance to bacterial seedling rot caused by burkholderia glumae and identification of japanese standard cultivars for resistance assessments
topic Research Paper
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7272248/
https://www.ncbi.nlm.nih.gov/pubmed/32523404
http://dx.doi.org/10.1270/jsbbs.19117
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