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1. De Novo Synthesis of the DEF-Ring Stereotriad Core of the Veratrum Alkaloids

   https://doi.org/10.1021/acs.joc.0c00685  

   Horwitz, Matthew A.; Robins, Jacob G.; Johnson, Jeffrey S. (May 2020, The Journal of Organic Chemistry)
2. The long and short of the S ‐locus in Turnera (Passifloraceae)

   https://doi.org/10.1111/nph.15970  

   Shore, Joel S.; Hamam, Hasan J.; Chafe, Paul D. J.; Labonne, Jonathan D. J.; Henning, Paige M.; McCubbin, Andrew G. (July 2019, New Phytologist)

   Summary Distyly is an intriguing floral adaptation that increases pollen transfer precision and restricts inbreeding. It has been a model system in evolutionary biology since Darwin. Although theS‐locus determines the long‐ and short‐styled morphs, the genes were unknown inTurnera. We have now identified these genes.We used deletion mapping to identify, and then sequence,BACclones and genome scaffolds to constructS/shaplotypes. We investigated candidate gene expression, hemizygosity, and used mutants, to explore gene function.Thes‐haplotype possessed 21 genes collinear with a region of chromosome 7 of grape. TheS‐haplotype possessed three additional genes and two inversions.TsSPH1was expressed in filaments and anthers,TsYUC6in anthers andTsBAHDin pistils. Long‐homostyle mutants did not possessTsBAHDand a short‐homostyle mutant did not expressTsSPH1.Three hemizygous genes appear to determine S‐morph characteristics inT. subulata. Hemizygosity is common to all distylous species investigated, yet the genes differ. The pistil candidate gene,TsBAHD, differs from that ofPrimula, but both may inactivate brassinosteroids causing short styles.TsYUC6is involved in auxin synthesis and likely determines pollen characteristics.TsSPH1is likely involved in filament elongation. We propose an incompatibility mechanism involvingTsYUC6andTsBAHD. 

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3. Revision of Batrachospermum Section Virescentia (Batrachospermales, Rhodophyta) with the Establishment of the New Genus, Virescentia Stat. nov.

   https://doi.org/10.7872/crya/v39.iss3.2018.313  

   Necchi, Orlando; Agostinho, Douglas C.; Vis, Morgan L. (August 2018, Cryptogamie, Algologie)
4. The Gaia -ESO Survey: the origin and evolution of s -process elements

   https://doi.org/10.1051/0004-6361/201832841  

   Magrini, L.; Spina, L.; Randich, S.; Friel, E.; Kordopatis, G.; Worley, C.; Pancino, E.; Bragaglia, A.; Donati, P.; Tautvaišienė, G.; et al (September 2018, Astronomy & Astrophysics)
5. The Genome Architecture of the Copepod Eurytemora carolleeae —  the Highly Invasive Atlantic Clade of the Eurytemora affinis Species Complex

   https://doi.org/10.1093/gpbjnl/qzae066  

   Du, Zhenyong; Gelembiuk, Gregory; Moss, Wynne; Tritt, Andrew; Lee, Carol Eunmi (October 2024, Genomics, Proteomics & Bioinformatics)

   Jiang, Yu (Ed.)

   Abstract Copepods are among the most abundant organisms on the planet and play critical functions in aquatic ecosystems. Among copepods, populations of the Eurytemora affinis species complex are numerically dominant in many coastal habitats and serve as food sources for major fisheries. Intriguingly, certain populations possess the unusual capacity to invade novel salinities on rapid time scales. Despite their ecological importance, high-quality genomic resources have been absent for calanoid copepods, limiting our ability to comprehensively dissect the genome architecture underlying the highly invasive and adaptive capacity of certain populations. Here, we present the first chromosome-level genome of a calanoid copepod, from the Atlantic clade (Eurytemora carolleeae) of the E. affinis species complex. This genome was assembled using high-coverage PacBio long-read and Hi-C sequences of an inbred line, generated through 30 generations of full-sib mating. This genome, consisting of 529.3 Mb (contig N50 = 4.2 Mb, scaffold N50 = 140.6 Mb), was anchored onto four chromosomes. Genome annotation predicted 20,262 protein-coding genes, of which ion transport-related gene families were substantially expanded based on comparative analyses of 12 additional arthropod genomes. Also, we found genome-wide signatures of historical gene body methylation of the ion transport-related genes and the significant clustering of these genes on each chromosome. This genome represents one of the most contiguous copepod genomes to date and is among the highest quality marine invertebrate genomes. As such, this genome provides an invaluable resource to help yield fundamental insights into the ability of this copepod to adapt to rapidly changing environments. 

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