Uncovering the genomic regions underlying grain iron and zinc content using genome-wide association mapping in finger millet

Chandra, Ajay Kumar; Pandey, Dinesh; Sood, Salej; Joshi, Dinesh Chandra; Tiwari, Apoorv; Sharma, Divya; Gururani, Kavita; Kumar, Anil

doi:10.1007/s13205-023-03889-1

Cited by 4 publications

(1 citation statement)

References 31 publications

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“…Marker-trait association (MTA) studies in finger millet have been undertaken using whole genome SNP markers from different skim- sequencing techniques. Through GWAS, SNP markers associated with flowering days (Sharma et al, 2018;Sood, Joshi, Rajashekara, et al, 2023), grain yield (Sharma et al, 2018;Sood, Joshi, Rajashekara, et al, 2023;Tiwari et al, 2020), neck blast (Sood, Joshi, Rajashekara, et al, 2023), micronutrient (Chandra et al, 2024;Puranik et al, 2020;Sharma et al, 2022) and protein contents (Tiwari et al, 2020) were reported. Studies at the University of Georgia have characterized a bi-parental interspecific population (MD-20 Â Okhale 1) (Qi et al, 2018) to map for days to flowering, plant height, panicle number per plant and blast disease resistance (Pendergast et al, 2022), and colouration of stigma and anthers (Devos et al, 2023).…”

Section: Molecular Markers and Quantitative Trait Loci (Qtl) Mapping ...mentioning

confidence: 99%

Finger millet (Eleusine coracana) improvement: Challenges and prospects—A review

Gebreyohannes,

Shimelis,

Mashilo

et al. 2024

Plant Breeding

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Finger millet is a climate‐resilient and highly nutritious small grain crop widely grown in the semi‐arid tropics. It has multiple uses, including for food, feed and beverage preparations. However, finger millet is an under‐utilized and under‐researched crop with a mean yield of <1.0 t/ha despite a potential productivity of up to 8 t/ha. The yield gap is attributed to several production constraints, such as biotic and abiotic stresses, a lack of access to improved seeds and production inputs and poor agronomic management practices. There are valuable genetic resources and genetic variability of finger millet in its centres of diversity and global gene banks for variety design, product development and commercialization. The genetic variability can be harnessed further to integrate essential traits into candidate varieties through conventional and modern breeding methods. Breeding and genetic innovations such as genomics‐assisted breeding, mutation breeding and genome editing would accelerate finger millet breeding and new variety design and deployment. The objective of this review was to document the opportunities, challenges and prospects of finger millet improvement as a guide for variety development and deployment with enhanced grain yield and nutritional contents. The first section describes global production status and yield gains, major production and productivity challenges in finger millet. This is followed by an in‐depth presentation on breeding and genetic progress on variety development with improved agronomic and nutritional quality traits, drought and salinity tolerance, and fungal diseases, weeds and insect pest resistance. Further, the review summarized finger millet's genetic and genomic resources, reference genomes, whole genome re‐sequencing and transcriptomics of finger millet technologies, genetic engineering and genome editing and their integration with conventional breeding methods for variety design with desired end‐use traits. The review provides foundational information to expedite the development of new‐generation finger millet cultivars with desirable product profiles, including high grain yield potential, early maturity, desirable seed colour, compact head type, food and feed nutrients quality and high marketability through modern breeding approaches.

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