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https://locus.ufv.br//handle/123456789/22118
Tipo: | Artigo |
Título: | Genetic characterization of anthracnose resistance genes Co-4 3 and Co-9 in common bean cultivar tlalnepantla 64 (PI 207262) |
Autor(es): | Marin, Ana Lilia Alzate Souza, Krystyano Almeida de Silva, Marcelo Geraldo de Morais Oliveira, Eder Jorge de Moreira, Maurilio Alves Barros, Everaldo Gonçalves de |
Abstract: | Tlalnepantla 64 (PI 207262) is an important source of genes for resistance to common bean anthracnose, caused by Colletotrichum lindemuthianum. However, these genes have not been fully characterized. Inheritance studies using crosses involving PI 207262 show that two independent genes confer resistance to anthracnose. Allelism tests showed that the genes are located at distinct loci from the previously identified resistance genes Co-1, Co-2, Co-3, Co-5, Co-6, and Co-10. Also, no segregation was observed in relation to Co-4, Co-4 2, Co-9, and to the gene present in cultivar Widusa, indicating that PI 207262 harbors alleles of these genes. We conclude that PI 207262 harbors two anthracnose resistance genes, Co-4 and Co-9. The Co-4 allele of PI 207262 would be different from Co-4 and Co-4 2 and it is proposed Co-4 3 as the genetic symbol for this resistance allele. As PI 207262 is the parent of BAT 93, the Co-9 symbol represents the gene of both cultivars. Also, one allele of Co-9 gene was detected in cultivar Widusa. |
Palavras-chave: | Anthracnose Colletotrichum lindemuthianum Differential cultivars Phaseolus vulgaris Resistance genes |
Editor: | Euphytica |
Tipo de Acesso: | Kluwer Academic Publishers |
URI: | https://doi.org/10.1007/s10681-006-9253-x http://www.locus.ufv.br/handle/123456789/22118 |
Data do documento: | 1-Fev-2007 |
Aparece nas coleções: | Fitotecnia - Artigos |
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artigo.pdf Until 2100-12-31 | Texto completo | 194,46 kB | Adobe PDF | Visualizar/Abrir ACESSO RESTRITO |
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