Interplay of starch debranching enzyme and its inhibitor is mediated by Redox-Activated SPL transcription factor

Kadoll, Sukhjiwan K.; Zhou, Zhou; Dhindsa, Rajinder S.; Lemaux, Peggy G.; Buchanan, Bob B.; Singh, Jaswinder

doi:10.1016/j.csbj.2022.09.027

Cited by 1 publication

(1 citation statement)

References 40 publications

(46 reference statements)

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“…So far, 16 AtSPLs in Arabidopsis thaliana 9 , 56 TaSPLs in wheat 11 , 19 OsSPLs in rice 12 , 17 HvSPLs in barley 13 and 18 BdSBPs in Brachypodium distachyon 14 have been reported. SPL genes regulate various developmental processes, including panicle architecture 15 , vegetative to reproductive phase change 16 , embryogenesis 17 , fertility 18 , hormonal signalling 19 , flowering 20 , copper homeostasis 21 and germination and starch debranching 22 .…”

Section: Introductionmentioning

confidence: 99%

Differential expression and global analysis of miR156/SQUAMOSA promoter binding-like proteins (SPL) module in oat

Mehtab-Singh,

Tripathi,

Bekele

et al. 2024

Sci Rep

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SQUAMOSA promoter binding-like proteins (SPLs) are important transcription factors that influence growth phase transition and reproduction in plants. SPLs are targeted by miR156 but the SPL/miR156 module is completely unknown in oat. We identified 28 oat SPL genes (AsSPLs) distributed across all 21 oat chromosomes except for 4C and 6D. The oat- SPL gene family represented six of eight SPL phylogenetic groups, with no AsSPLs in groups 3 and 7. A novel oat miR156 (AsmiR156) family with 21 precursors divided into 7 groups was characterized. A total of 16 AsSPLs were found to be targeted by AsmiR156. Intriguingly, AsSPL3s showed high transcript abundance during early inflorescence (GS-54), as compared to the lower abundance of AsmiR156, indicating their role in reproductive development. Unravelling the SPL/miR156 regulatory hub and alterations in expression patterns of AsSPLs could provide an essential toolbox for genetic improvement in the cultivated oat.

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