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- W4309153006 endingPage "14114" @default.
- W4309153006 startingPage "14114" @default.
- W4309153006 abstract "LEAFY plant-specific transcription factors, which are key regulators of flower meristem identity and floral patterning, also contribute to meristem activity. Notably, in some legumes, LFY orthologs such as Medicago truncatula SINGLE LEAFLET (SGL1) are essential in maintaining an undifferentiated and proliferating fate required for leaflet formation. This function contrasts with most other species, in which leaf dissection depends on the reactivation of KNOTTED-like class I homeobox genes (KNOXI). KNOXI and SGL1 genes appear to induce leaf complexity through conserved downstream genes such as the meristematic and boundary CUP-SHAPED COTYLEDON genes. Here, we compare in M. truncatula the function of SGL1 with that of the Arabidopsis thaliana KNOXI gene, SHOOT MERISTEMLESS (AtSTM). Our data show that AtSTM can substitute for SGL1 to form complex leaves when ectopically expressed in M. truncatula. The shared function between AtSTM and SGL1 extended to the major contribution of SGL1 during floral development as ectopic AtSTM expression could promote floral organ identity gene expression in sgl1 flowers and restore sepal shape and petal formation. Together, our work reveals a function for AtSTM in floral organ identity and a higher level of interchangeability between meristematic and floral identity functions for the AtSTM and SGL1 transcription factors than previously thought." @default.
- W4309153006 created "2022-11-24" @default.
- W4309153006 creator A5009960787 @default.
- W4309153006 creator A5024519570 @default.
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- W4309153006 creator A5056968032 @default.
- W4309153006 creator A5061547263 @default.
- W4309153006 creator A5066068514 @default.
- W4309153006 creator A5090001860 @default.
- W4309153006 date "2022-11-15" @default.
- W4309153006 modified "2023-10-18" @default.
- W4309153006 title "Arabidopsis thaliana SHOOT MERISTEMLESS Substitutes for Medicago truncatula SINGLE LEAFLET1 to Form Complex Leaves and Petals" @default.
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- W4309153006 doi "https://doi.org/10.3390/ijms232214114" @default.