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Biotechnol Biofuels. 2017 Jun 8;10:146. doi: 10.1186/s13068-017-0834-9. eCollection 2017.

Sweet sorghum as biofuel feedstock: recent advances and available resources.

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Crop Genetics & Informatics Group, School of Biotechnology, Jawaharlal Nehru University, New Delhi, India.
Indian Council of Agricultural Research-Indian Institute of Millets Research, Hyderabad, India.
Crop Genetics & Informatics Group, School of Computational and Integrative Sciences, Jawaharlal Nehru University, New Delhi, India.


Sweet sorghum is a promising target for biofuel production. It is a C4 crop with low input requirements and accumulates high levels of sugars in its stalks. However, large-scale planting on marginal lands would require improved varieties with optimized biofuel-related traits and tolerance to biotic and abiotic stresses. Considering this, many studies have been carried out to generate genetic and genomic resources for sweet sorghum. In this review, we discuss various attributes of sweet sorghum that make it an ideal candidate for biofuel feedstock, and provide an overview of genetic diversity, tools, and resources available for engineering and/or marker-assisting breeding of sweet sorghum. Finally, the progress made so far, in identification of genes/quantitative trait loci (QTLs) important for agronomic traits and ongoing molecular breeding efforts to generate improved varieties, has been discussed.


Biofuel; Feedstock; Genomics; Grass genetics; Sorghum; Sorghum breeding

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