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Author: search.filters.author.Bandyopadhyay, TirthankarSubject: search.filters.subject.Foxtail Millet

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    Genome-wide association study of major agronomic traits in foxtail millet (Setaria italica L.) using ddRAD sequencing
    (Springer Nature, 2019) Jaiswal, Vandana; Gupta, Sarika; Gahlaut, Vijay; Muthamilarasan, Mehanathan; Bandyopadhyay, Tirthankar; Ramchiary, Nirala; Prasad, Manoj
    Foxtail millet (Setaria italica), the second largest cultivated millet crop after pearl millet, is utilized for food and forage globally. Further, it is also considered as a model crop for studying agronomic, nutritional and biofuel traits. In the present study, a genome-wide association study (GWAS) was performed for ten important agronomic traits in 142 foxtail millet core eco-geographically diverse genotypes using 10 K SNPs developed through GBS-ddRAD approach. Number of SNPs on individual chromosome ranged from 844 (chromosome 5) to 2153 (chromosome 8) with an average SNP frequency of 25.9 per Mb. The pairwise linkage disequilibrium (LD) estimated using the squared-allele frequency correlations was found to decay rapidly with the genetic distance of 177 Kb. However, for individual chromosome, LD decay distance ranged from 76 Kb (chromosome 6) to 357 Kb (chromosome 4). GWAS identified 81 MTAs (marker-trait associations) for ten traits across the genome. High confidence MTAs for three important agronomic traits including FLW (flag leaf width), GY (grain yield) and TGW (thousand-grain weight) were identified. Significant pyramiding effect of identified MTAs further supplemented its importance in breeding programs. Desirable alleles and superior genotypes identified in the present study may prove valuable for foxtail millet improvement through marker-assisted selection.
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    Nutrition potential of foxtail millet in comparison to other millets and major cereals
    (Springer, 2017) Bandyopadhyay, Tirthankar; Jaiswal, Vandana; Prasad, Manoj
    Global population is burgeoning at an alarming rate and is expected to reach 9.7 billion by 2050 and 11.2 billion by the end of this century. This has led to immense pressure on global agriculture, compounded by dwindling productivity of the existing systems and acreage because of climate change, resulting in ever-increasing input costs for the cultivation of most resource-intensive cereal crops such as rice, wheat, and maize. Ironically, the most affected populations are those with least resources to mitigate the problem—those belonging to Asian and Sub-Saharan Africa. It is against this backdrop that there is an ever-increasing need for adopting cereal crops that are easy to cultivate, less resource hungry, climate resilient, and importantly, that meet the major nutritional requirement of the feeding population. Foxtail millet is a perfect cereal crop in this light and stands to help significantly global endeavors toward food security and nutrition. The present chapter provides a comparative nutritional assessment of foxtail millet with other cereal crops, summarizes the major scientific approaches currently being undertaken for its biofortification and highlights potential avenues of crop improvement using conventional breeding, genomics, and other interdisciplinary “omic” tools.