The Chinese chestnut genome: a reference for species restoration
Autor: | Anna O. Conrad, Mihir K. Mandal, Jason A. Holliday, Frederick V. Hebard, Matthew Huff, Margaret Staton, Nathaniel Cannon, Emily S. Bellis, Nelson Cd, Rooksana E. Noorai, Shenghua Fan, Laura L. Georgi, Stephan C. Schuster, Zhu X, Tyler Wagner, Daniela I. Drautz-Moses, Lu Z, John E. Carlson, Nathan Henry, Charles Addo-Quaye, Jiali Yu, Jared W. Westbrook, Nicole Zembower, Tetyana Zhebentyayeva, Sun Y, Jesse R. Lasky, Catherine Bodénès, Albert G. Abbott, Stephen P. Ficklin, Christopher A. Saski, Islam-Faridi N |
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Rok vydání: | 2019 |
Předmět: |
0106 biological sciences
0303 health sciences Resistance (ecology) Ecology Introgression 15. Life on land Biology Plant disease resistance 01 natural sciences Genome 03 medical and health sciences Threatened species Blight Identification (biology) 030304 developmental biology 010606 plant biology & botany Reference genome |
Popis: | Forest tree species are increasingly subject to severe mortalities from exotic pests, diseases, and invasive organisms, accelerated by climate change. Forest health issues are threatening multiple species and ecosystem sustainability globally. While sources of resistance may be available in related species, or among surviving trees, introgression of resistance genes into threatened tree species in reasonable time frames requires genome-wide breeding tools. Asian species of chestnut (Castaneaspp.) are being employed as donors of disease resistance genes to restore native chestnut species in North America and Europe. To aid in the restoration of threatened chestnut species, we present the assembly of a reference genome with chromosome-scale sequences for Chinese chestnut (C. mollissima), the disease-resistance donor for American chestnut restoration. We also demonstrate the value of the genome as a platform for research and species restoration, including new insights into the evolution of blight resistance in Asian chestnut species, the locations in the genome of ecologically important signatures of selection differentiating American chestnut from Chinese chestnut, the identification of candidate genes for disease resistance, and preliminary comparisons of genome organization with related species. |
Databáze: | OpenAIRE |
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