The Epigenetics of Leaf Senescence
Research, The Plant Cell, The Plant Cell: In a NutshellLiu et al. explore the mechanism underlying the epigenetic reprograming of senescence-associated gene expression during leaf senescence. Plant Cell https://doi.org/10.1105/tpc.18.00693
By Peng Liu, Jing Bo Jin, and Xiaofeng Cao, Chinese Academy of Sciences, Beijing, China.
Background: Leaf…
SME1 shapes plant development and freezing tolerance
Research, The Plant Cell, The Plant Cell: In a NutshellHuertas et al. show that SME1 modulates spliceosome activity to shape plant development and tolerance to freezing temperatures. Plant Cell https://doi.org/10.1105/tpc.18.00689
By Raúl Huertas, Noble Research Institute, Admore, Oklahoma, USA. Rafael Catalá, Centro de Investigaciones Biológicas-CSIC,…
Faculty Job: Myths & Realities - an interview with Mary Heskel
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About you
Describe your journey from student to newly appointed faculty
I started my undergraduate degree somewhat begrudgingly taking introductory biology at the University of Pennsylvania. Half of that introductory course was taught by Dr. Scott Poethig, a corn geneticist, whose lectures…
Impact of Biolistic Transformation on the Genome
Research, The Plant Cell, The Plant Cell: In a NutshellLiu et al. show that biolistic transformation can cause extensive damage and rearrangements, including deletions, duplications, chromosome fusions, and copy number variations. Plant Cell https://doi.org/10.1105/tpc.18.00613
By Jianing Liu and R. Kelly Dawe, Department of Genetics, University…
Review: The metabolic response to drought (J Exp Bot) ($)
Plant Science Research WeeklyUnderstanding environmental stress in plants is undoubtedly important due to the consequences of climate change in crop productivity and survival of plants. Metabolomics based on liquid chromatography and gas chromatography coupled to mass spectrometry (LC-MS, GC-MS) allows an understanding of the metabolic…
Site-specific manipulation of Arabidopsis loci using CRISPR-Cas9 SunTag systems (Nature Comms)
Plant Science Research WeeklySteve Jacobsen’s group has been developing a broad range of synthetic biology tools to interrogate DNA-methylation in plants (see Gallego-Bartolomé et al., 2018, and Gallego-Bartolomé et al., 2019). Among them, they use the CRISPR-Cas9 SunTag system, in which the dCas9 protein is fused to SunTag,…
Review. Feeding the world: improving photosynthetic efficiency for sustainable crop production (J Exp Bot)
Plant Science Research WeeklyThe global population is estimated to rise by 2 billion by 2050 placing strains on major food crops. To sustainably feed future populations and reduce the environmental damage of intensive agriculture, crop yields must be improved without increasing the amount of cultivatable land. In this review, Simkin…
Evolutionary origins of pseudogenes and association with regulatory sequences (Plant Cell)
Plant Science Research WeeklyProtein-coding genes have undergone frameshifts, in-frame stop codons, and truncation to produce pseudogenes (Ψs), which had been thought to be non-functional. Recently, Ψs have been shown to play regulatory roles in gene expression by acting as a source of small interfering RNAs or sequestering microRNAs.…
Metabolism gene prediction using diversiform molecular features (PNAS)
Plant Science Research WeeklyAdvances in sequencing technologies enable scientists to obtain molecular features of genes in high-dimensionality. Features of individual gene like expression, methylation, histone modification, evolutionary signals and sequence itself provide high resolution for distinguishing annotated genes. In plant…