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Genome-wide association mapping identifies an SNF4 ortholog that impacts biomass and sugar yield in sorghum and sugarcane

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Relation http://oar.icrisat.org/12371/
https://academic.oup.com/jxb/article/73/11/3584/6549043
https://doi.org/10.1093/jxb/erac110
 
Title Genome-wide association mapping identifies an SNF4 ortholog that impacts biomass and sugar yield in sorghum and sugarcane
 
Creator Upadhyaya, H D
Wang, L
Prakash, C S
Liu, Y
Gao, L
Meng, R
Seetharam, K
Gowda, C L L
Ganesamurthy, K
Singh, S K
Kumar, R
Li, J
Wang, Y
 
Subject Crop Yield
Sorghum
 
Description Sorghum is a feed/industrial crop in developed countries and a staple food elsewhere in the world. This study evaluated the sorghum mini core collection for days to 50% flowering (DF), biomass, plant height (PH), soluble solid content (SSC), and juice weight (JW), and the sorghum reference set for DF and PH, in 7–12 testing environments. We also performed genome-wide association mapping with 6 094 317 and 265 500 single nucleotide polymorphism markers in the mini core collection and the reference set, respectively. In the mini core panel we identified three quantitative trait loci for DF, two for JW, one for PH, and one for biomass. In the reference set panel we identified another quantitative trait locus for PH on chromosome 6 that was also associated with biomass, DF, JW, and SSC in the mini core panel. Transgenic studies of three genes selected from the locus revealed that Sobic.006G061100 (SbSNF4-2) increased biomass, SSC, JW, and PH when overexpressed in both sorghum and sugarcane, and delayed flowering in transgenic sorghum. SbSNF4-2 encodes a γ subunit of the evolutionarily conserved AMPK/SNF1/SnRK1 heterotrimeric complexes. SbSNF4-2 and its orthologs will be valuable in genetic enhancement of biomass and sugar yield in plants.
 
Publisher Oxford University Press
 
Date 2022-03-15
 
Type Article
PeerReviewed
 
Format application/pdf
 
Language en
 
Rights cc_attribution
 
Identifier http://oar.icrisat.org/12371/1/Journal%20of%20Experimental%20Botany_73_11_3584%E2%80%933596_2022.pdf
Upadhyaya, H D and Wang, L and Prakash, C S and Liu, Y and Gao, L and Meng, R and Seetharam, K and Gowda, C L L and Ganesamurthy, K and Singh, S K and Kumar, R and Li, J and Wang, Y (2022) Genome-wide association mapping identifies an SNF4 ortholog that impacts biomass and sugar yield in sorghum and sugarcane. Journal of Experimental Botany, 73 (11). pp. 3584-3596. ISSN 1460-2431