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Continued thread

6. 7/8 🌐📚 Future prospects: there was so little biochemical data for our specific proteins, we had to rely on genome-wide data (PBMs). We could then estimate Kd for ANY sequence. That means, also for sequence variants.

Our earlier Framework Model v2 (FMv2) and FM-Life models link the clock right up, through plant metabolism, growth, development and physiology, to seed-to-seed adaptation in real weather.

Anyone who assembles these parts gets to predict how an Arabidopsis genome sequence variant will be adapted to climatic conditions. With a full causal chain. The mechanisms of evolutionary adaptation.👀 #GoForIt

Sure it’s simplified and there’s much to validate but it’s there. DNA-binding Kd is just where we started, there’s more known biochemistry to add.

New Insights into Flowering Regulation

An international team uncovered how carbon and nitrogen signals regulate flowering in Arabidopsis thaliana. The study reveals that these pathways converge on FLOWERING LOCUS C to fine-tune flowering time, offering insights to develop resilient, resource-efficient crops for sustainable agriculture.

globalplantcouncil.org/new-ins #PlantScience #Science #Plants #PlantSci #Flowers #arabidopsis #agriculture #PlantPhysiology

Tools
"Here, we engineered tobacco rattle virus to carry the compact RNA-guided TnpB enzyme ISYmu1 and its guide RNA. This innovation allowed transgene-free editing of #Arabidopsis thaliana in a single step, with edits inherited in the subsequent generation. "
#Preprint
biorxiv.org/content/10.1101/20

bioRxiv · Viral delivery of an RNA-guided genome editor for transgene-free plant germline editingGenome editing is transforming plant biology by enabling precise DNA modifications. However, delivery of editing systems into plants remains challenging, often requiring slow, genotype-specific methods such as tissue culture or transformation. Plant viruses, which naturally infect and spread to most tissues, present a promising delivery system for editing reagents. But most viruses have limited cargo capacities, restricting their ability to carry large CRISPR-Cas systems. Here, we engineered tobacco rattle virus to carry the compact RNA-guided TnpB enzyme ISYmu1 and its guide RNA. This innovation allowed transgene-free editing of Arabidopsis thaliana in a single step, with edits inherited in the subsequent generation. By overcoming traditional reagent delivery barriers, this approach offers a novel platform for genome editing, which can greatly accelerate plant biotechnology and basic research. ### Competing Interest Statement T.W., M.K, J.A, Z.L, H.S, B.A.A., J.A.D. and S.E.J. have filed a patent covering aspects of this work.