{"title":"Biovar-specific and broad-spectrum sources of resistance to bacterial wilt (Ralstonia solanacearum) in Capsicum","authors":"C. A. Lopes, L. Boiteux","doi":"10.12702/1984-7033.V04N03A14","DOIUrl":null,"url":null,"abstract":"No report has so far investigated either the biovar-specific or broad-spectrum reaction to Ralstonia solanacearum (RS) in Capsicum germplasm. Twenty-three accessions described as resistant to RS in different countries were challenged with Brazilian biovar I and biovar III isolates. Differences were observed among accessions and within biovar III isolates. In addition, isolates of biovar III were more aggressive than biovar I, reinforcing field observations which indicated that RS biovar III is predominant and more virulent and aggressive than biovar I isolates on Capsicum. Accessions previously reported as extremely resistant to RS in Asia exhibited slight wilt symptoms when challenged with Brazilian isolates. However, the high resistance levels in the inbred lines ‘MC-4’, ‘PBC 631’, ‘PBC 066’, ‘PBC 1347’, and ‘PBC 473’ make these accessions suitable for breeding programs aiming to develop pungent and/or sweet cultivars with a stable, broad-spectrum RS-resistance.","PeriodicalId":49085,"journal":{"name":"Crop Breeding and Applied Biotechnology","volume":"82 1","pages":"350-355"},"PeriodicalIF":1.1000,"publicationDate":"2004-09-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"18","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Crop Breeding and Applied Biotechnology","FirstCategoryId":"97","ListUrlMain":"https://doi.org/10.12702/1984-7033.V04N03A14","RegionNum":4,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q3","JCRName":"AGRONOMY","Score":null,"Total":0}
引用次数: 18
Abstract
No report has so far investigated either the biovar-specific or broad-spectrum reaction to Ralstonia solanacearum (RS) in Capsicum germplasm. Twenty-three accessions described as resistant to RS in different countries were challenged with Brazilian biovar I and biovar III isolates. Differences were observed among accessions and within biovar III isolates. In addition, isolates of biovar III were more aggressive than biovar I, reinforcing field observations which indicated that RS biovar III is predominant and more virulent and aggressive than biovar I isolates on Capsicum. Accessions previously reported as extremely resistant to RS in Asia exhibited slight wilt symptoms when challenged with Brazilian isolates. However, the high resistance levels in the inbred lines ‘MC-4’, ‘PBC 631’, ‘PBC 066’, ‘PBC 1347’, and ‘PBC 473’ make these accessions suitable for breeding programs aiming to develop pungent and/or sweet cultivars with a stable, broad-spectrum RS-resistance.
期刊介绍：
The CBAB – CROP BREEDING AND APPLIED BIOTECHNOLOGY (ISSN 1984-7033) – is the official quarterly journal of the Brazilian Society of Plant Breeding, abbreviated CROP BREED APPL BIOTECHNOL.
It publishes original scientific articles, which contribute to the scientific and technological development of plant breeding and agriculture. Articles should be to do with basic and applied research on improvement of perennial and annual plants, within the fields of genetics, conservation of germplasm, biotechnology, genomics, cytogenetics, experimental statistics, seeds, food quality, biotic and abiotic stress, and correlated areas. The article must be unpublished. Simultaneous submitting to another periodical is ruled out. Authors are held solely responsible for the opinions and ideas expressed, which do not necessarily reflect the view of the Editorial board. However, the Editorial board reserves the right to suggest or ask for any modifications required. The journal adopts the Ithenticate software for identification of plagiarism. Complete or partial reproduction of articles is permitted, provided the source is cited. All content of the journal, except where identified, is licensed under a Creative Commons attribution-type BY. All articles are published free of charge. This is an open access journal.
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