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Genetic variation in blast resistance in rice germplasm from West Africa

The genetic variation in resistance to blast (Pyricularia oryzae Cavara) in 195 rice accessions comprising 3 species of the AA genome complex (Asian rice [Oryza sativa L.], African rice [Oryza glaberrima Steud.] and wild rice [Oryza barthii]) was investigated based on their patterns of reaction to s...

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Autores principales: Odjo, Theophile, Koide, Yohei, Silue, Drissa, Yanagihara, Seiji, Kumashiro, Takashi, Fukuta, Yoshimichi
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Japanese Society of Breeding 2017
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5790046/
https://www.ncbi.nlm.nih.gov/pubmed/29398944
http://dx.doi.org/10.1270/jsbbs.17051
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author Odjo, Theophile
Koide, Yohei
Silue, Drissa
Yanagihara, Seiji
Kumashiro, Takashi
Fukuta, Yoshimichi
author_facet Odjo, Theophile
Koide, Yohei
Silue, Drissa
Yanagihara, Seiji
Kumashiro, Takashi
Fukuta, Yoshimichi
author_sort Odjo, Theophile
collection PubMed
description The genetic variation in resistance to blast (Pyricularia oryzae Cavara) in 195 rice accessions comprising 3 species of the AA genome complex (Asian rice [Oryza sativa L.], African rice [Oryza glaberrima Steud.] and wild rice [Oryza barthii]) was investigated based on their patterns of reaction to standard differential blast isolates (SDBIs) and SSR marker polymorphism data. Cluster analysis of the polymorphism data of 61 SSR markers identified 3 major clusters: cluster A (mainly Japonica Group or upland accessions), cluster B (mainly Indica Group or lowland accessions) and cluster C (O. glaberrima and O. barthii). The accessions were classified again into 3 resistance groups based on reactions to SDBIs: group Ia (susceptible), group Ib (middle resistance) and group II (high resistance). Group Ia included only a few differential varieties, susceptible controls and the Japonica Group cultivar Nipponbare. Accessions in clusters A and B included all 3 resistance groups and showed a wide variation in blast resistance, but cluster C contained only group Ib. These results demonstrated that variations in Asian rice (O. sativa) accessions in West Africa were skewed toward high resistance and that variations in O. glaberrima and O. barthii were limited and lower than the Asian rice accessions.
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spelling pubmed-57900462018-02-02 Genetic variation in blast resistance in rice germplasm from West Africa Odjo, Theophile Koide, Yohei Silue, Drissa Yanagihara, Seiji Kumashiro, Takashi Fukuta, Yoshimichi Breed Sci Research Paper The genetic variation in resistance to blast (Pyricularia oryzae Cavara) in 195 rice accessions comprising 3 species of the AA genome complex (Asian rice [Oryza sativa L.], African rice [Oryza glaberrima Steud.] and wild rice [Oryza barthii]) was investigated based on their patterns of reaction to standard differential blast isolates (SDBIs) and SSR marker polymorphism data. Cluster analysis of the polymorphism data of 61 SSR markers identified 3 major clusters: cluster A (mainly Japonica Group or upland accessions), cluster B (mainly Indica Group or lowland accessions) and cluster C (O. glaberrima and O. barthii). The accessions were classified again into 3 resistance groups based on reactions to SDBIs: group Ia (susceptible), group Ib (middle resistance) and group II (high resistance). Group Ia included only a few differential varieties, susceptible controls and the Japonica Group cultivar Nipponbare. Accessions in clusters A and B included all 3 resistance groups and showed a wide variation in blast resistance, but cluster C contained only group Ib. These results demonstrated that variations in Asian rice (O. sativa) accessions in West Africa were skewed toward high resistance and that variations in O. glaberrima and O. barthii were limited and lower than the Asian rice accessions. Japanese Society of Breeding 2017-12 2017-11-23 /pmc/articles/PMC5790046/ /pubmed/29398944 http://dx.doi.org/10.1270/jsbbs.17051 Text en Copyright © 2017 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
Odjo, Theophile
Koide, Yohei
Silue, Drissa
Yanagihara, Seiji
Kumashiro, Takashi
Fukuta, Yoshimichi
Genetic variation in blast resistance in rice germplasm from West Africa
title Genetic variation in blast resistance in rice germplasm from West Africa
title_full Genetic variation in blast resistance in rice germplasm from West Africa
title_fullStr Genetic variation in blast resistance in rice germplasm from West Africa
title_full_unstemmed Genetic variation in blast resistance in rice germplasm from West Africa
title_short Genetic variation in blast resistance in rice germplasm from West Africa
title_sort genetic variation in blast resistance in rice germplasm from west africa
topic Research Paper
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5790046/
https://www.ncbi.nlm.nih.gov/pubmed/29398944
http://dx.doi.org/10.1270/jsbbs.17051
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