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Floral buds are closed structures that protect reproductive organs. Here the authors find that differential growth prescribes transverse tensile stress and growth arrest at the sepal tip, which in turn curve it and form a rigid hook to seal the floral bud.
The researchers have uncovered that the phase separation ability of plant heterochromatin protein ADCP1 variants defines the formation of heterochromatic condensates (chromocenters) in different plant species.
This study reveals the transition of move and evolve strategies and their interaction with niche opportunity and trait innovation throughout the diversification of the grape family—a globally distributed plant group originated in the Cretaceous.
This proteomic landscape study reveals proteins associated with the functional specificity of rice tissues, and further multi-omics analysis shows that N6-methyladenosine in untranslated regions is negatively correlated with protein abundance.
Martre et al. found that to achieve the full yield potential of improved wheat varieties, nitrogen fertilizer use would need to increase fourfold over current use, which would unavoidably increase the environmental impacts of wheat production.
Fossil seeds (60 to 20 million years old) from Colombia, Panama and Perú show previously unrecognized patterns of diversity and local extinctions of grapes in the New World. These also support a tentative origin of Vitis in the New World.
To enhance cross-species single-cell analysis, the authors find gene pairs with similar expression patterns across 13 species. These coexpression proxies serve as common features in datasets, improving integrative and comparative cell-type analysis.
Parallel degradome sequencing and DMS-MaPseq pinpoint the first cleavage sites on bona fide pri-miRNAs, decode their in vivo structure and provide better interpretation of the cleavage modes and impact of DCL1 cofactors in the process in Arabidopsis.
Marks et al. explore the repeated evolution of desiccation tolerance in grasses. Their analysis of diverse resurrection grasses reveals significant genetic convergence and parallel evolution, suggesting a shared foundation for adapting to extreme drought.
The wheat powdery mildew resistance gene Pm4 also confers resistance to wheat blast carrying the effector AVR-Rmg8. The authors propose the Pm4f allele as the most effective allele to deploy in Bangladesh and Zambia.
Rmg8 and Rmg7, genes for resistance to wheat blast, proved to be a homoeologue and an allele of Pm4, a gene for resistance to powdery mildew. Their functional homologues were also found in Aegilops spp., suggesting that their origin dates back to the time before differentiation of Triticum and Aegilops.
Gene drive elements spread linked traits and can be used to change the composition or fate of populations. Here Oberhofer and colleagues engineer gene drive in the plant Arabidopsis thaliana. Applications include genetic biocontrol and conservation.
Researchers have developed a synthetic gene drive in Arabidopsis, demonstrating a proof of concept for biasing inheritance that could enable rapid genetic modifications or population suppression in wild plants.
The rice protein Ptr defends against blast disease by detecting the effector AVR-Pita in an allele-specific manner. The immune receptor Pi-ta proved to have no function in this process, contrary to what was previously reported.
In Marchantia polymorpha, sperm cells are released from the antheridium into the surroundings. The process is facilitated by MpMLO1, which initiates Ca2+-dependent programmed cell death of tip jacket cells of the mature antheridium, enabling water to enter and ultimately resulting in the bursting of the antheridium and the discharge of sperm.
The manual-labour-intensive hybrid seed production process is a limiting step for fully mechanized hybrid rice breeding. This work demonstrates that the use of ideal small-grain alleles of GSE3 enables fully mechanized hybrid rice breeding.
This study reports the structure of a photosystem I assembly intermediate isolated from greening oat seedlings. It defines PsaF as a regulatory checkpoint promoting the association of LHCI that couples biogenesis to function.
Analyses of three newly sequenced modern cultivar cotton genomes revealed sequence and structural variation alongside traces of ancient and ongoing introgressions. Moreover, transcriptome analysis pointed at unique fibre quality traits of cultivars.