Genomic mechanisms of climate adaptation in polyploid bioenergy switchgrass
| Autor: | Aren Ewing, Kathrine D. Behrman, Jenell Webber, Katrien M. Devos, Philip A. Fay, Rod A. Wing, A. Boe, Manoj Sharma, Alice MacQueen, Sandra Thibivillier, Jerry Jenkins, Christopher A. Saski, Roser Matamala, Adam Healey, Christian M. Tobias, Shengqiang Shu, Juan Manuel Martínez-Reyna, Avinash Sreedasyam, Christopher Plott, John Lloyd-Reilley, Lori Beth Boston, Jeremy Schmutz, Robert B. Mitchell, Rita Sharma, Stacy A. Bonos, Guohong Albert Wu, Matthew Zane, Thomas E. Juenger, Daniel S. Rokhsar, Jane Grimwood, Malay C. Saha, Jiming Jiang, Thomas H. Pendergast, Jason Bonnette, Felix B. Fritschi, Anna Lipzen, Michael K. Udvardi, Xiaoyu Weng, Kerrie Barry, Melissa Williams, Francis M. Rouquette, Julie D. Jastrow, Vasanth R. Singan, Peng Qi, Pamela C. Ronald, Eugene V. Shakirov, Christopher Daum, Li Zhang, Adam M. Session, Yuhong Tang, Taslima Haque, Shweta Deshpande, Dave Kudrna, Joseph D. Napier, Laura E. Bartley, Ada Stewart, John T. Lovell, Ji-Yi Zhang, David B. Lowry, Paul P. Grabowski, Melanie Harrison, Yanqi Wu, Yuko Yoshinaga, David W. Sims, Sujan Mamidi, Michael D. Casler |
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| Rok vydání: | 2021 |
| Předmět: |
Gene Flow
Bioalcohols Evolution General Science & Technology Acclimatization Climate change Introgression Genomics Panicum Genetic Introgression Global Warming Article Evolutionary genetics Plant breeding Gene flow Evolution Molecular Polyploidy Genetics Genetic variation Biomass Ecotype Genetic diversity Multidisciplinary Genome biology Ecology Human Genome food and beverages Molecular Molecular Sequence Annotation Gene Pool Plant biology.organism_classification United States Genome evolution Climate Action Biofuels Panicum virgatum Gene pool Adaptation Genome Plant |
| Zdroj: | Nature, vol 590, iss 7846 Nature |
| Popis: | Long-term climate change and periodic environmental extremes threaten food and fuel security1 and global crop productivity2–4. Although molecular and adaptive breeding strategies can buffer the effects of climatic stress and improve crop resilience5, these approaches require sufficient knowledge of the genes that underlie productivity and adaptation6—knowledge that has been limited to a small number of well-studied model systems. Here we present the assembly and annotation of the large and complex genome of the polyploid bioenergy crop switchgrass (Panicum virgatum). Analysis of biomass and survival among 732 resequenced genotypes, which were grown across 10 common gardens that span 1,800 km of latitude, jointly revealed extensive genomic evidence of climate adaptation. Climate–gene–biomass associations were abundant but varied considerably among deeply diverged gene pools. Furthermore, we found that gene flow accelerated climate adaptation during the postglacial colonization of northern habitats through introgression of alleles from a pre-adapted northern gene pool. The polyploid nature of switchgrass also enhanced adaptive potential through the fractionation of gene function, as there was an increased level of heritable genetic diversity on the nondominant subgenome. In addition to investigating patterns of climate adaptation, the genome resources and gene–trait associations developed here provide breeders with the necessary tools to increase switchgrass yield for the sustainable production of bioenergy. The genome of the biofuel crop switchgrass (Panicum virgatum) reveals climate–gene–biomass associations that underlie adaptation in nature and will facilitate improvements of the yield of this crop for bioenergy production. |
| Databáze: | OpenAIRE |
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