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High-resolution mapping and characterization of xa42, a resistance gene against multiple Xanthomonas oryzae pv. oryzae races in rice (Oryza sativa L.)
Improvement of resistance against rice bacterial blight (BB) disease is an important breeding strategy in breeding programs across the world, especially in Africa and southern Asia where BB is more prevalent. This report describes a high-resolution map and characterization of xa42 at XA42 locus, a r...
Autores principales: | , , , , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
Japanese Society of Breeding
2018
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Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5982184/ https://www.ncbi.nlm.nih.gov/pubmed/29875602 http://dx.doi.org/10.1270/jsbbs.17094 |
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author | Busungu, Constantine Taura, Satoru Sakagami, Jun-Ichi Anai, Toyoaki Ichitani, Katsuyuki |
author_facet | Busungu, Constantine Taura, Satoru Sakagami, Jun-Ichi Anai, Toyoaki Ichitani, Katsuyuki |
author_sort | Busungu, Constantine |
collection | PubMed |
description | Improvement of resistance against rice bacterial blight (BB) disease is an important breeding strategy in breeding programs across the world, especially in Africa and southern Asia where BB is more prevalent. This report describes a high-resolution map and characterization of xa42 at XA42 locus, a rice BB resistance gene in XM14, a mutant line originating from IR24. The candidate gene region was narrowed down from 582 kb, which had been obtained in our previous study, to 57 kb. XM14 shows brown spots in its leaves like lesion mimic mutants. This line also shows a shorter stature than the original cultivar IR24. In XA42 gene segregating populations, homozygotes of xa42 allele were consistently resistant to the six Japanese Xanthomonas oryzae pv. oryzae races used for this study. They also showed brown spots and markedly short stature compared with the other genotypes, suggesting that xa42 gene exhibits pleiotropic effects. |
format | Online Article Text |
id | pubmed-5982184 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2018 |
publisher | Japanese Society of Breeding |
record_format | MEDLINE/PubMed |
spelling | pubmed-59821842018-06-06 High-resolution mapping and characterization of xa42, a resistance gene against multiple Xanthomonas oryzae pv. oryzae races in rice (Oryza sativa L.) Busungu, Constantine Taura, Satoru Sakagami, Jun-Ichi Anai, Toyoaki Ichitani, Katsuyuki Breed Sci Research Paper Improvement of resistance against rice bacterial blight (BB) disease is an important breeding strategy in breeding programs across the world, especially in Africa and southern Asia where BB is more prevalent. This report describes a high-resolution map and characterization of xa42 at XA42 locus, a rice BB resistance gene in XM14, a mutant line originating from IR24. The candidate gene region was narrowed down from 582 kb, which had been obtained in our previous study, to 57 kb. XM14 shows brown spots in its leaves like lesion mimic mutants. This line also shows a shorter stature than the original cultivar IR24. In XA42 gene segregating populations, homozygotes of xa42 allele were consistently resistant to the six Japanese Xanthomonas oryzae pv. oryzae races used for this study. They also showed brown spots and markedly short stature compared with the other genotypes, suggesting that xa42 gene exhibits pleiotropic effects. Japanese Society of Breeding 2018-03 2018-04-10 /pmc/articles/PMC5982184/ /pubmed/29875602 http://dx.doi.org/10.1270/jsbbs.17094 Text en Copyright © 2018 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 Busungu, Constantine Taura, Satoru Sakagami, Jun-Ichi Anai, Toyoaki Ichitani, Katsuyuki High-resolution mapping and characterization of xa42, a resistance gene against multiple Xanthomonas oryzae pv. oryzae races in rice (Oryza sativa L.) |
title | High-resolution mapping and characterization of xa42, a resistance gene against multiple Xanthomonas oryzae pv. oryzae races in rice (Oryza sativa L.) |
title_full | High-resolution mapping and characterization of xa42, a resistance gene against multiple Xanthomonas oryzae pv. oryzae races in rice (Oryza sativa L.) |
title_fullStr | High-resolution mapping and characterization of xa42, a resistance gene against multiple Xanthomonas oryzae pv. oryzae races in rice (Oryza sativa L.) |
title_full_unstemmed | High-resolution mapping and characterization of xa42, a resistance gene against multiple Xanthomonas oryzae pv. oryzae races in rice (Oryza sativa L.) |
title_short | High-resolution mapping and characterization of xa42, a resistance gene against multiple Xanthomonas oryzae pv. oryzae races in rice (Oryza sativa L.) |
title_sort | high-resolution mapping and characterization of xa42, a resistance gene against multiple xanthomonas oryzae pv. oryzae races in rice (oryza sativa l.) |
topic | Research Paper |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5982184/ https://www.ncbi.nlm.nih.gov/pubmed/29875602 http://dx.doi.org/10.1270/jsbbs.17094 |
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