Common bean germplasm resistant to races 73 and 2047 of Colletotrichum lindemuthianum
| Autor: | Heloisa Helena Pastre, Claudete Rosa da Silva, Maria Celeste Gonçalves-Vidigal, Adriana Gonela, L. M. Darben, Haroldo Tavares Elias |
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| Rok vydání: | 2017 |
| Předmět: |
0106 biological sciences
0301 basic medicine Germplasm Germplasm Bank Colletotrichum lindemuthianum food and beverages Biology biology.organism_classification 01 natural sciences Applied Microbiology and Biotechnology 03 medical and health sciences Race (biology) chemistry.chemical_compound Horticulture 030104 developmental biology chemistry Molecular marker Genetics Allele Phaseolus Agronomy and Crop Science Molecular Biology Gene 010606 plant biology & botany Biotechnology |
| Zdroj: | African Journal of Biotechnology. 16:1142-1149 |
| ISSN: | 1684-5315 |
| DOI: | 10.5897/ajb2016.15751 |
| Popis: | The present work aims to identify common bean accessions resistant to anthracnose by incompatibility reaction evaluations to races 73 and 2047 of C. lindemuthianum, associated with using of SF101072 and SAS13950 molecular markers linked, respectively, to gene Co-10 and allele Co-42. A total of 75 common bean accessions from Common Bean Germplasm Bank (CBGB) of Nucleo de Pesquisa Aplicada a Agricultura (Nupagri) were evaluated. The results showed that 14 accessions were resistant to both races 73 and 2047 of C. lindemuthianum, 36 exhibited resistances only to race 2047, and 25 revealed incompatibility reaction to race 73. Joint analysis between incompatibility phenotypic reactions and the presence of markers allowed identifying 13 resistant accessions to races 73 and 21 to race 2047, indicating the occurrence of Co-10 (renamed Co-34) and Co-42, respectively. A total of 32 accessions were resistant without the presence of markers. Among the 75 common bean accessions evaluated, important sources of resistance to C. lindemuthianum, from Andean and Mesoamerican regions, were identified and have promising potential in breeding programs. Key words: Phaseolus vulgaris, anthracnose, molecular marker, sequence characterized amplified regions for amplification of specific band (SCAR). |
| Databáze: | OpenAIRE |
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