Strategies of tolerance reflected in two North American maple genomes

• DOI: 10.1101/2021.07.19.452996
• Publication Date: 2021-07-20T16:10:23Z
• Authors: Susan L. McEvoy; U. Uzay Sezen; Alexander Trouern...; Sean M. McMahon; Paul G. Schaberg; Jie Yang; Jill L. Wegrzyn; Nathan G. Swenson
• Keywords: Plant Leaves; 0301 basic medicine; Soil; 03 medical and health sciences; North America; Forestry; Acer; Original Articles; 15. Life on land

Abstract Maples (the genus Acer ) represent important and beloved forest, urban, ornamental trees distributed throughout the Northern hemisphere. They exist in a diverse array of native ranges distributions, across spectrums tolerance or decline, have varying levels susceptibility to biotic abiotic stress. Among species, several stand out their importance economic interest. Here we report first two chromosome-scale genomes for North American negundo saccharum . Both assembled contain scaffolds corresponding 13 chromosomes, with A. at length 442 Mb, N50 32 Mb 30,491 genes, 626 46 40,074 genes. No recent whole genome duplications were detected, though has local gene duplication more bursts transposable elements, as well large-scale translocation between chromosomes. Genomic comparison revealed that smaller family evolution is predominantly contracted expansions are potentially related invasive tendencies Examination expression from RNA-Seq obtained grown long-term aluminum calcium soil treatments Hubbard Brook Experimental Forest, provided insights into genes involved stress response systemic level, signs compromised processes upon deficiency, condition contributing maple decline. Significance statement The assemblies members genus, sugar ( boxelder ), transcriptomic evaluation This integrated study describes in-depth aspects each species’ approach applies current knowledge many areas plant biology physiology help convey genomic complexities underlying broadleaf tree species.