A generalist–specialist trade-off between switchgrass cytotypes impacts climate adaptation and geographic range
Abstract
Polyploidy, which occurs in roughly half of all flowering plants and an even higher percentage of grasses, is thought to be a major driver of adaptation. Higher numbers of copies of each gene in polyploid genomes can increase genetic diversity, which could drive shifts in habitat preference, adaptability, and fitness. To test the effects of increased ploidy, we compared genomic diversity, environmental niche, and fitness responses across climatic gradients between tetraploid and octoploid switchgrass. We found that the octoploids contained novel combinations of the ancestral tetraploid genetic diversity, which was linked to the expansion of switchgrass into unsuitable habitats for tetraploid populations. Our experiments revealed evidence of niche divergence, differential fitness, and a generalist–specialist trade-off between cytotypes.
- Authors:
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- Univ. of Texas, Austin, TX (United States)
- HudsonAlpha Inst. for Biotechnology, Huntsville, AL (United States)
- Michigan State Univ., East Lansing, MI (United States)
- South Dakota State Univ., Brookings, SD (United States)
- US Department of Agriculture–Agricultural Research Service, Temple, TX (United States)
- Univ. of Missouri, Columbia, MO (United States)
- Argonne National Lab. (ANL), Lemont, IL (United States)
- US Department of Agriculture–Natural Resources Conservation Service, Kingsville, TX (United States)
- US Department of Agriculture–Agricultural Research Service, Lincoln, NE (United States)
- Texas A&M Univ., Overton, TX (United States)
- Oklahoma State Univ., Stillwater, OK (United States)
- Lawrence Berkeley National Lab. (LBNL), Berkeley, CA (United States)
- HudsonAlpha Inst. for Biotechnology, Huntsville, AL (United States); Lawrence Berkeley National Lab. (LBNL), Berkeley, CA (United States)
- Publication Date:
- Research Org.:
- Univ. of Wisconsin, Madison, WI (United States); Argonne National Laboratory (ANL), Argonne, IL (United States); Univ. of Texas, Austin, TX (United States); Lawrence Berkeley National Laboratory (LBNL), Berkeley, CA (United States)
- Sponsoring Org.:
- USDOE Office of Science (SC), Basic Energy Sciences (BES); USDOE Office of Science (SC), Biological and Environmental Research (BER). Biological Systems Science Division
- OSTI Identifier:
- 1863806
- Alternate Identifier(s):
- OSTI ID: 1865807; OSTI ID: 1902632; OSTI ID: 1958130
- Grant/Contract Number:
- SC0018409; SC0014156; SC0021126; SC0017883; AC02-05CH11231; AC02-06CH11357
- Resource Type:
- Accepted Manuscript
- Journal Name:
- Proceedings of the National Academy of Sciences of the United States of America
- Additional Journal Information:
- Journal Volume: 119; Journal Issue: 15; Journal ID: ISSN 0027-8424
- Publisher:
- National Academy of Sciences
- Country of Publication:
- United States
- Language:
- English
- Subject:
- 09 BIOMASS FUELS; 59 BASIC BIOLOGICAL SCIENCES; cytotypes; octoploid; panicum virgatum; cytotypes, octoploid, Panicum virgatum, switchgrass
Citation Formats
Napier, Joseph D., Grabowski, Paul P., Lovell, John T., Bonnette, Jason, Mamidi, Sujan, Gomez-Hughes, Maria Jose, VanWallendael, Acer, Weng, Xiaoyu, Handley, Lori H., Kim, Min K., Boe, Arvid R., Fay, Philip A., Fritschi, Felix B., Jastrow, Julie D., Lloyd-Reilley, John, Lowry, David B., Matamala, Roser, Mitchell, Robert B., Rouquette, Jr., Francis M., Wu, Yanqi, Webber, Jenell, Jones, Teresa, Barry, Kerrie, Grimwood, Jane, Schmutz, Jeremy, and Juenger, Thomas E. A generalist–specialist trade-off between switchgrass cytotypes impacts climate adaptation and geographic range. United States: N. p., 2022.
Web. doi:10.1073/pnas.2118879119.
Napier, Joseph D., Grabowski, Paul P., Lovell, John T., Bonnette, Jason, Mamidi, Sujan, Gomez-Hughes, Maria Jose, VanWallendael, Acer, Weng, Xiaoyu, Handley, Lori H., Kim, Min K., Boe, Arvid R., Fay, Philip A., Fritschi, Felix B., Jastrow, Julie D., Lloyd-Reilley, John, Lowry, David B., Matamala, Roser, Mitchell, Robert B., Rouquette, Jr., Francis M., Wu, Yanqi, Webber, Jenell, Jones, Teresa, Barry, Kerrie, Grimwood, Jane, Schmutz, Jeremy, & Juenger, Thomas E. A generalist–specialist trade-off between switchgrass cytotypes impacts climate adaptation and geographic range. United States. https://doi.org/10.1073/pnas.2118879119
Napier, Joseph D., Grabowski, Paul P., Lovell, John T., Bonnette, Jason, Mamidi, Sujan, Gomez-Hughes, Maria Jose, VanWallendael, Acer, Weng, Xiaoyu, Handley, Lori H., Kim, Min K., Boe, Arvid R., Fay, Philip A., Fritschi, Felix B., Jastrow, Julie D., Lloyd-Reilley, John, Lowry, David B., Matamala, Roser, Mitchell, Robert B., Rouquette, Jr., Francis M., Wu, Yanqi, Webber, Jenell, Jones, Teresa, Barry, Kerrie, Grimwood, Jane, Schmutz, Jeremy, and Juenger, Thomas E. Mon .
"A generalist–specialist trade-off between switchgrass cytotypes impacts climate adaptation and geographic range". United States. https://doi.org/10.1073/pnas.2118879119. https://www.osti.gov/servlets/purl/1863806.
@article{osti_1863806,
title = {A generalist–specialist trade-off between switchgrass cytotypes impacts climate adaptation and geographic range},
author = {Napier, Joseph D. and Grabowski, Paul P. and Lovell, John T. and Bonnette, Jason and Mamidi, Sujan and Gomez-Hughes, Maria Jose and VanWallendael, Acer and Weng, Xiaoyu and Handley, Lori H. and Kim, Min K. and Boe, Arvid R. and Fay, Philip A. and Fritschi, Felix B. and Jastrow, Julie D. and Lloyd-Reilley, John and Lowry, David B. and Matamala, Roser and Mitchell, Robert B. and Rouquette, Jr., Francis M. and Wu, Yanqi and Webber, Jenell and Jones, Teresa and Barry, Kerrie and Grimwood, Jane and Schmutz, Jeremy and Juenger, Thomas E.},
abstractNote = {Polyploidy, which occurs in roughly half of all flowering plants and an even higher percentage of grasses, is thought to be a major driver of adaptation. Higher numbers of copies of each gene in polyploid genomes can increase genetic diversity, which could drive shifts in habitat preference, adaptability, and fitness. To test the effects of increased ploidy, we compared genomic diversity, environmental niche, and fitness responses across climatic gradients between tetraploid and octoploid switchgrass. We found that the octoploids contained novel combinations of the ancestral tetraploid genetic diversity, which was linked to the expansion of switchgrass into unsuitable habitats for tetraploid populations. Our experiments revealed evidence of niche divergence, differential fitness, and a generalist–specialist trade-off between cytotypes.},
doi = {10.1073/pnas.2118879119},
journal = {Proceedings of the National Academy of Sciences of the United States of America},
number = 15,
volume = 119,
place = {United States},
year = {Mon Apr 04 00:00:00 EDT 2022},
month = {Mon Apr 04 00:00:00 EDT 2022}
}
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