Resistance to pre-harvest aflatoxin contamination in ICRISAT’s groundnut mini core collection

Abstract

Aflatoxin contamination in groundnut byAspergillus flavus has assumed global significance and is considered a potential threat to human and animal health. The present study focused on the screening and identification of stable and reliable resistance sources to pre-harvest aflatoxin contamination in ICRISAT's groundnut mini core germplasm accessions. . In total, 31 accessions had less aflatoxin accumulation than the resistant check, 55-437. The seven best accessions, ICGs 13,603, 1415ICGs 13,603, , 14,630, 3584, 5195, 6703 and 6888, over six years (2008ICGs 13,603, -2013 consistently accumulated very low levels of aflatoxin (<4 μg kg −1). These seven accessions could be potential sources for understanding the resistant mechanisms and can be further used in developing resistant cultivars or introgressing resistance in popular released varieties.

Aspergillus flavus infection triggered immune responses and host-pathogen cross-talks in groundnut during in-vitro seed colonization

“…However, the aflatoxin is produced only in the cotyledons of groundnut kernels after fungal infection 9 . Sources of resistance to these mechanisms were identified independently 7 , 10 , 11 . Therefore, there is a need to understand the molecular mechanisms of resistance to aflatoxin contamination.…”

Advances in Crop Improvement and Delivery Research for Nutritional Quality and Health Benefits of Groundnut (Arachis hypogaea L.)

“…Similarly, in ICRISAT-Mali, screening of ICRISAT's groundnut mini core accessions was conducted between 2008 and 2013 resulting in identification of low aflatoxin (Waliyar et al, 2016). Some of these materials have been used in population generation with, more than 130 populations developed between 2015 and 2018.…”

Pulse Crops for Sustainable Farms in Sub-Saharan Africa

“…and it is exacerbated by poor grain storage in hot, humid environment. A few varieties of groundnut have been developed, and plant breeding continues to address, genetic control of aflatoxin (Waliyar et al, 2016; Table 2). Currently, agronomic management and post-harvest storage are important means to achieve control (Johnson, Atherstone, and Grace, 2015).…”