Sources of resistance to Colletotrichum lindemuthianum in the secondary gene pool of Phaseolus vulgaris and in crosses of primary and secondary gene pools
Use of genetic resistance is the most practical and economic way to manage anthracnose of common bean. Colletotrichum lindemuthianum, the causal agent of bean anthracnose, is a highly variabile pathogen, and there are no host resistance genes that are effective against all known races of the pathoge...
| Autores principales: | , , , |
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| Formato: | Journal Article |
| Lenguaje: | Inglés |
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Scientific Societies
2002
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| Acceso en línea: | https://hdl.handle.net/10568/44121 |
| _version_ | 1855536187466317824 |
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| author | Mahuku, George S. Jara, Carlos E. Cajiao V., César Hernando Beebe, Stephen E. |
| author_browse | Beebe, Stephen E. Cajiao V., César Hernando Jara, Carlos E. Mahuku, George S. |
| author_facet | Mahuku, George S. Jara, Carlos E. Cajiao V., César Hernando Beebe, Stephen E. |
| author_sort | Mahuku, George S. |
| collection | Repository of Agricultural Research Outputs (CGSpace) |
| description | Use of genetic resistance is the most practical and economic way to manage anthracnose of common bean. Colletotrichum lindemuthianum, the causal agent of bean anthracnose, is a highly variabile pathogen, and there are no host resistance genes that are effective against all known races of the pathogen. To diversify sources of resistance, we screened the core collection of the secondary gene pool of Phaseolus spp. and interspecific lines derived from simple and complex crosses of primary and secondary genotypes for their resistance to anthracnose. High levels of resistance were observed in the secondary gene pool. None of the 162 accessions tested was susceptible to C. lindemuthianum. Of the two species composing the secondary gene pool, P. polyanthus displayed higher levels of resistance than P. coccineus, and all accessions tested were resistant. The response of P. coccineus was more variable, with six genotypes showing an intermediate reaction. Among the 75 lines from interspecific crosses, 49 were resistant to the three races (races 6, 15, and 3481) used in this study, and higher levels of resistance were found in lines that had P. polyanthus as one of the parents in the crosses than in the lines derived from P. coccineus. These lines constitute a valuable source of resistance and may aid in the development of stable resistance to anthracnose. |
| format | Journal Article |
| id | CGSpace44121 |
| institution | CGIAR Consortium |
| language | Inglés |
| publishDate | 2002 |
| publishDateRange | 2002 |
| publishDateSort | 2002 |
| publisher | Scientific Societies |
| publisherStr | Scientific Societies |
| record_format | dspace |
| spelling | CGSpace441212024-04-25T06:01:36Z Sources of resistance to Colletotrichum lindemuthianum in the secondary gene pool of Phaseolus vulgaris and in crosses of primary and secondary gene pools Mahuku, George S. Jara, Carlos E. Cajiao V., César Hernando Beebe, Stephen E. colletotrichum lindemuthianum phaseolus vulgaris anthracnosis phaseolus polyanthus phaseolus coccineus hybridization genetic resistance pest resistance antracnosis hibridación resistencia genética resistencia a las plagas Use of genetic resistance is the most practical and economic way to manage anthracnose of common bean. Colletotrichum lindemuthianum, the causal agent of bean anthracnose, is a highly variabile pathogen, and there are no host resistance genes that are effective against all known races of the pathogen. To diversify sources of resistance, we screened the core collection of the secondary gene pool of Phaseolus spp. and interspecific lines derived from simple and complex crosses of primary and secondary genotypes for their resistance to anthracnose. High levels of resistance were observed in the secondary gene pool. None of the 162 accessions tested was susceptible to C. lindemuthianum. Of the two species composing the secondary gene pool, P. polyanthus displayed higher levels of resistance than P. coccineus, and all accessions tested were resistant. The response of P. coccineus was more variable, with six genotypes showing an intermediate reaction. Among the 75 lines from interspecific crosses, 49 were resistant to the three races (races 6, 15, and 3481) used in this study, and higher levels of resistance were found in lines that had P. polyanthus as one of the parents in the crosses than in the lines derived from P. coccineus. These lines constitute a valuable source of resistance and may aid in the development of stable resistance to anthracnose. 2002-12 2014-10-02T08:33:16Z 2014-10-02T08:33:16Z Journal Article https://hdl.handle.net/10568/44121 en Open Access Scientific Societies Mahuku, George S.; Jara, Carlos E.; Cajiao V., César Hernando; Beebe, Stephen E.. 2002. Sources of resistance to Colletotrichum lindemuthianum in the secondary gene pool of Phaseolus vulgaris and in crosses of primary and secondary gene pools . Plant Disease (USA) 86(12):1383-1387. |
| spellingShingle | colletotrichum lindemuthianum phaseolus vulgaris anthracnosis phaseolus polyanthus phaseolus coccineus hybridization genetic resistance pest resistance antracnosis hibridación resistencia genética resistencia a las plagas Mahuku, George S. Jara, Carlos E. Cajiao V., César Hernando Beebe, Stephen E. Sources of resistance to Colletotrichum lindemuthianum in the secondary gene pool of Phaseolus vulgaris and in crosses of primary and secondary gene pools |
| title | Sources of resistance to Colletotrichum lindemuthianum in the secondary gene pool of Phaseolus vulgaris and in crosses of primary and secondary gene pools |
| title_full | Sources of resistance to Colletotrichum lindemuthianum in the secondary gene pool of Phaseolus vulgaris and in crosses of primary and secondary gene pools |
| title_fullStr | Sources of resistance to Colletotrichum lindemuthianum in the secondary gene pool of Phaseolus vulgaris and in crosses of primary and secondary gene pools |
| title_full_unstemmed | Sources of resistance to Colletotrichum lindemuthianum in the secondary gene pool of Phaseolus vulgaris and in crosses of primary and secondary gene pools |
| title_short | Sources of resistance to Colletotrichum lindemuthianum in the secondary gene pool of Phaseolus vulgaris and in crosses of primary and secondary gene pools |
| title_sort | sources of resistance to colletotrichum lindemuthianum in the secondary gene pool of phaseolus vulgaris and in crosses of primary and secondary gene pools |
| topic | colletotrichum lindemuthianum phaseolus vulgaris anthracnosis phaseolus polyanthus phaseolus coccineus hybridization genetic resistance pest resistance antracnosis hibridación resistencia genética resistencia a las plagas |
| url | https://hdl.handle.net/10568/44121 |
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