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Genetic and genomic resources, and breeding for accelerating improvement of small millets: current status and future interventions

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Relation http://oar.icrisat.org/11546/
https://doi.org/10.1007/s13237-020-00322-3
doi:10.1007/s13237-020-00322-3
 
Title Genetic and genomic resources, and breeding for accelerating improvement of small millets: current status and future interventions
 
Creator Vetriventhan, M
Azevedo, V C R
Upadhyaya, H D
Nirmalakumari, A
Kane-Potaka, J
Anitha, S
Ceasar, S A
Muthamilarasan, M
Bhat, B V
Hariprasanna, K
Bellundagi, A
Cheruku, D
Backiyalakshmi, C
Santra, D
Vanniarajan, C
Tonapi, V A
 
Subject Plant Breeding
Finger Millet
Foxtail Millet
Climate Resilient Technologies
Genetics and Genomics
Food and Nutrition
Germplasm
 
Description Current agricultural and food systems encourage research and development on major crops, neglecting regionally important
minor crops. Small millets include a group of small- seeded cereal crops of the grass family Poaceae. This includes
finger millet, foxtail millet, proso millet, barnyard millet, kodo millet, little millet, teff, fonio, job’s tears, guinea millet,
and browntop millet. Small millets are an excellent choice to supplement major staple foods for crop and dietary diversity
because of their diverse adaptation on marginal lands, less water requirement, lesser susceptibility to stresses, and nutritional
superiority compared to major cereal staples. Growing interest among consumers about healthy diets together with
climate-resilient features of small millets underline the necessity of directing more research and development towards these
crops. Except for finger millet and foxtail millet, and to some extent proso millet and teff, other small millets have received
minimal research attention in terms of development of genetic and genomic resources and breeding for yield enhancement.
Considerable breeding efforts were made in finger millet and foxtail millet in India and China, respectively, proso millet in
the United States of America, and teff in Ethiopia. So far, five genomes, namely foxtail millet, finger millet, proso millet,
teff, and Japanese barnyard millet, have been sequenced, and genome of foxtail millet is the smallest (423-510 Mb) while
the largest one is finger millet (1.5 Gb). Recent advances in phenotyping and genomics technologies, together with available
germplasm diversity, could be utilized in small millets improvement. This review provides a comprehensive insight into
the importance of small millets, the global status of their germplasm, diversity, promising germplasm resources, and breeding
approaches (conventional and genomic approaches) to accelerate climate-resilient and nutrient-dense small millets for
sustainable agriculture, environment, and healthy food systems.
 
Publisher Springer
 
Date 2020-07
 
Type Article
PeerReviewed
 
Format application/pdf
 
Language en
 
Identifier http://oar.icrisat.org/11546/1/Vetriventhan2020_Article_GeneticAndGenomicResourcesAndB.pdf
Vetriventhan, M and Azevedo, V C R and Upadhyaya, H D and Nirmalakumari, A and Kane-Potaka, J and Anitha, S and Ceasar, S A and Muthamilarasan, M and Bhat, B V and Hariprasanna, K and Bellundagi, A and Cheruku, D and Backiyalakshmi, C and Santra, D and Vanniarajan, C and Tonapi, V A (2020) Genetic and genomic resources, and breeding for accelerating improvement of small millets: current status and future interventions. The Nucleus (TSI). ISSN 0029-568X