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Registros recuperados: 3
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Marker-assited screening of cotton cultivars for bacterial blight resistance gene. Repositório Alice
FAUSTINE, C.; HOFFMANN, L. V.; LUKONGE, E.; TIBAZARWA, F. I..
Bacterial blight or leaf blight is a common disease of cotton in almost all cotton growing countries, including Tanzania. Bacterial blight is caused by infection of plants with the bacteria (Xanthomonas axonopodis pv. malvacearum) and the use of resistant cultivars is the most effective long-term strategy to manage the disease. The strategy starts with identification of resistant individuals, which can be identified either phenotypically by inoculation or by use of molecular markers linked to genes that confer resistance. The B12 gene is known to confer a high level of resistance to all Xanthomonas axonopodis pv. malvacearum races found in USA and Africa. Four Brazilian and three local cultivars were screened for the presence of SSR (CIR246) and SNP...
Tipo: Artigo em periódico indexado (ALICE) Palavras-chave: Cotton; Bacterial blight; Xanthomonas axonopodis pv malvacearum; Molecular marker; Gene; Bactéria; Algodão; Germoplasma.
Ano: 2015 URL: http://www.alice.cnptia.embrapa.br/handle/doc/1041528
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Screening of selected brazilian and tanzanian cotton (Gossypium spp.) cultivars for Fusarium wilt resistance. Repositório Alice
FAUSTINE, C.; HOFFMANN, L. V.; TIBAZARWA, F. I.; LUKONGE, E..
Fusarium wilt of cotton caused by Fusarium oxysporum f.sp. vasinfectum Atk. Sny & Hans is one of the major diseases of cotton in Tanzania. Resistant varieties provide useful tools for management of this disease. Varieties developed at Lake Zone Agricultural Research and Development Institute with previous records of resistance are currently susceptible in areas with high level of inoculums warranting the need to search for additional sources of resistance. Further, cotton varieties of Brazil indicate some level of resistance against F. oxysporum f. sp. vasinfectum that can be exploited in breeding programmes. In present study, four varieties from Brazil and three from Tanzanian were screened under greenhouse conditions for resistance to Fusarium wilt....
Tipo: Artigo em periódico indexado (ALICE) Palavras-chave: Fusarium wilt resistance; Cotton cultivars; Disease severity; Brazil; Tanzania.
Ano: 2016 URL: http://www.alice.cnptia.embrapa.br/handle/doc/1065942
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Use of simple sequence repeat (SSR) markers for screening blue disease resistance in cotton germoplasm exchange. Repositório Alice
FAUSTINE, C.; HOFFMANN, L. V.; TIBAZARWA, F. I.; KUKONGE, E..
Blue disease of cotton is an economically important disease of the crop first described from the Central African Republic and spread to other countries. Brazil and other South American countries record crop losses of up to 80% from infection but no cases of the disease have been reported in Tanzania. Resistance to the disease has been found in African germplasm and transferred to crop cultivars worldwide. Molecular markers linked to blue disease resistance genes have been identified presenting useful tools to identify resistant germplasm. All plants of three Tanzanian cotton cultivars (Gossypium hirsutum L.) UK91, UK08 and UKM08 showed resistance alleles for both the simple sequence repeat (SSR) (DC20027-202 bp) and single nucleotide polymorphisms (SNP)...
Tipo: Artigo em periódico indexado (ALICE) Palavras-chave: SSR markers; Cotton blue disease; Algodão; Gene; Gossypium hirsutum; Germoplasma; Safra.
Ano: 2015 URL: http://www.alice.cnptia.embrapa.br/handle/doc/1041497
Registros recuperados: 3
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