Authors:

Jeremy Ledesma Vicioso

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Anthracnose disease, caused by Colletotrichum sublineola, results in considerable yield loss of sorghum globally, especially in regions where wet and humid conditions prevail. Genetic studies of natural variants of sorghum have defined many anthracnose resistance loci. Sorghum differential lines have been used as sources of resistance to strains of the fungus and also to define new emerging strains of the pathogen. Here, we evaluated the response of eighteen sorghum differential lines to inoculation by Colletotrichum sublineola strain Cs29. Four-week-old seedlings of the sorghum differential lines were inoculated with 106 spores/mL of Cs 29. Results suggest that some sorghum lines such as Brandes and Theis are resistant to Colletotrichum Cs 29 whereas TAM428 is susceptible to the pathogen. Thus, current results highlight the potential to identify new resistance genes in these sorghum lines and to introgress resistance traits into susceptible cultivars that otherwise have other desirable traits. Keywords: Anthracnose; C. sublineola; Sorghum; Differential Lines

Source:

Purdue University / 2024

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Co-authors:

Jeremy Ledesma Vicioso