Ten golden rules for reforestation to optimize carbon sequestration, biodiversity recovery and livelihood benefits
Di Sacco et al. highlight the main environmental risks of large‐scale tree planting and propose 10 golden rules, based on some of the most recent ecological research, to implement forest ecosystem restoration that maximizes rates of both carbon sequestration and biodiversity recovery while improving livelihoods.
Global Change Biology
Status and prospects of genome‐wide association studies in plants
The development of the mixed model framework for GWAS dramatically reduced the number of false positives compared with naïve methods. Building on this foundation, many methods have since been developed to increase computational speed or improve statistical power in GWAS.
The Plant Genome
Convergence of sphingolipid desaturation across over 500 million years of plant evolution
Resemann et al. suggest that adjustment of membrane fluidity evolved independently in mosses and seed plants, which diverged more than 500 million years ago.
Teosinte introgression modulates phosphatidylcholine levels and induces early maize flowering time
Rodríguez-Zapata et al. combined linkage mapping analysis with genome scans to identify High PhosphatidylCholine 1 (HPC1), a gene which encodes a phospholipase A1 enzyme, as a major driver of phospholipid variation in highland maize. Common garden experiments demonstrated strong genotype-by-environment interactions associated with variation at HPC1, with the highland HPC1 allele leading to higher fitness in highlands, possibly by hastening flowering.
UVR8 interacts with de novo DNA methyltransferase and suppresses DNA methylation in Arabidopsis
Jiang et al. uncovered a connection between ultraviolet B (UVB) signalling and DNA methylation involving UVB photoreceptor (UV RESISTANCE LOCUS 8 (UVR8)) and a de novo DNA methyltransferase (DOMAINS REARRANGED METHYLTRANSFERASE 2 (DRM2)) in Arabidopsis.
Two NLR immune receptors acquired high-affinity binding to a fungal effector through convergent evolution of their integrated domain
Białas et al. reconstructed the evolutionary history of Pik-1 and its NLR partner, Pik-2, and tested hypotheses about adaptive evolution of the HMA domain. Phylogenetic analyses revealed that the HMA domain integrated into Pik-1 before Oryzinae speciation over 15 million years ago and has been under diversifying selection.
The rise of angiosperms strengthened fire feedbacks and improved the regulation of atmospheric oxygen
Belcher et al. show, using the COPSE biogeochemical model, that angiosperm-driven alteration of fire feedbacks likely lowered atmospheric oxygen levels from ~30% to 25% by the end of the Cretaceous. This likely set the stage for the emergence of closed-canopy angiosperm tropical rainforests that they suggest would not have been possible without angiosperm enhancement of fire feedbacks.