Investigating the Role of Genomic Material Costs in Ecological, Evolutionary, and Invasion Dynamics Using the Solidago Gigantea (Giant Goldenrod) Polyploid Complex

Walczyk, Angela M.

doi:10.37099/mtu.dc.etdr/1428

Cited by 2 publications

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“…For example, numerous studies have shown that a wide variety of traits can differ between polyploids and their diploid progenitors and while some differences appear to be idiosyncratic, others are consistent across study systems (Porturas et al 2019, Bomblies 2020, Mortier et al 2024, Streher et al 2024. These changes can have many downstream ecological consequences that might impact the ability of polyploids to live in more extreme or stressful environments (Rice et al 2019, Van de Peer et al 2021, Yang et al 2024, shift into new ecological niches (Baniaga et al 2020, Bürki et al 2024, Mortier et al 2024, Zielinska et al 2024, or expand their range sizes (Hijmans et al 2007, Wu et al 2010, Cheng et al 2021, potentially even becoming invasive (Parshuram et al 2023, Walczyk andHersch-Green 2024). Changes in niche or the ability to live in stressful environments could lead to polyploid establishment.…”

Section: Lessons Learnedmentioning

confidence: 99%

“…In addition to differences in interactions that relate to reproductive isolation, other types of interactions may also be altered in ways that confer an advantage to polyploids over diploids. Reductions in parasites (Walczyk and Hersch-Green 2024), resistance to pathogens (Hagen and Mason 2024), increased competitive ability (Castro et al 2024), and specialized interactions with mutualists (Gerstner et al 2024) could give polyploids an edge that facilitates their establishment.…”

Section: Lessons Learnedmentioning

confidence: 99%

“…As a case in point, polyploids may be more stress resilient than their diploid counterparts (Van de Peer et al 2021), for example, polyploids have been shown to be better able to handle the presence of pollutants in the environment (Turcotte et al 2024). Likewise, changes in plasticity and ecophysiological traits (Walczyk andHersch-Green 2024, Yang et al 2024) may allow polyploids to persist better in anthropogenically disturbed environments. If so, we might predict that polyploid taxa will dominate in locations that have experienced human disturbance (Van Drunen and Johnson 2022).…”

Section: Emerging Frontiersmentioning

confidence: 99%

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Special issue.: The role of whole genome duplication in evolutionary ecology

Segraves,

Anneberg

2024

Oikos

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Polyploid organisms are common and can be found across the tree of life. A key question is to understand how and why these polyploid lineages become established and persist in populations, particularly since they are predicted to have a low probability of success. While the collection of papers in this special issue addresses broad questions on the evolutionary ecology of polyploids, ultimately, these studies also highlight the myriad ways that we are examining what drives the success of polyploid lineages. In this paper we consider where we've been and the challenges that we face, and then propose several directions that will allow us to continue to propel the field towards our ultimate goal of understanding the rules that govern the establishment and persistence of polyploid populations. We conclude that developing this rule set will require a combination of model systems for which we have detailed knowledge of the phylogenetic and population genetic history, expanding our perspective beyond plants to include greater taxonomic breadth, and conducting studies in ecologically relevant settings. Additionally, we argue that future research on the evolutionary ecology of polyploidy should focus on integrating theory and empirical research, providing mechanistic linkages between the effects of whole genome duplication and population demography, and build a predictive framework to understand how anthropogenic change will impact polyploid organisms.

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Section: Lessons Learnedmentioning

confidence: 99%

Section: Lessons Learnedmentioning

confidence: 99%

Section: Emerging Frontiersmentioning

confidence: 99%

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Special issue.: The role of whole genome duplication in evolutionary ecology

Segraves,

Anneberg

2024

Oikos

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“…Data files used in statistical analyses will be available from the Dryad Digital Repository: https://doi.org/10.5061/dryad. 931zcrjrm (Walczyk and Hersch-Green, 2023).…”

Section: Acknowledgmentsmentioning

confidence: 99%

“…Specifically, we predicted that because photosynthesis and terpenes (a defensive compound within Solidago; Bohlmann et al, 1998;Bustamante et al, 2020;Ninkuu et al, 2021) both directly or indirectly (from precursor production) require N and P, that photosynthetic rates and terpene concentrations would be (1) higher under nutrient enrichments, (2) lower for larger GS cytotypes (due to material cost and photosynthesis/defense trade-offs), and (3) more similar among cytotypes under nutrient enrichments because larger GS cytotypes should be less constrained by material costs. (H5) Because stomatal density is negatively correlated with ploidy level in S. gigantea (Walczyk and Hersch-Green, 2022;Walczyk, 2022), larger GS cytotypes have lower transpiration rates and combined with how GS and nutrient availability influences photosynthesis (see H4) will also be more water-use efficient (able to assimilate more carbon from photosynthesis than water lost from transpiration) than smaller GS cytotypes, especially under nutrient-limiting conditions. (H6) Larger GS cytotypes are more nutrient-use efficient under nutrient limiting conditions, thereby minimizing increased material-cost constraints.…”

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confidence: 99%

Genome‐material costs and functional trade‐offs in the autopolyploid Solidago gigantea (giant goldenrod) series

Walczyk

Hersch‐Green

2023

American J of Botany

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Premise of studyIncreased genomic “material costs” of nitrogen (N) and phosphorus (P) atoms inherent to organisms with larger genome sizes (GS) has been proposed to limit growth under nutrient scarcities and promote growth under nutrient enrichments. Such responsiveness may reflect a nutrient‐dependent diploid versus polyploid advantage that could have vast ecological and evolutionary implications, but direct evidence that material costs increase with ploidy‐level and/or influence cytotype‐dependent growth, metabolic, and/or resource‐use tradeoffs is limited.MethodsWe grew diploid, auto‐tetraploid, and auto‐hexaploid Solidago gigantea plants under one of four ambient and enriched N:P treatments and measured traits related to material costs, primary and secondary metabolism, and resource‐use.Key resultsRelative to diploids, polyploids invested more N and P into cells and tetraploids grew more following N‐enrichments, suggesting that material costs increase with ploidy‐level. Polyploids also generally exhibited strategies that could minimize material‐cost‐constraints over both long (reduced monoploid GS) and short (more extreme transcriptome downsizing, reduced photosynthesis rates and terpene concentrations, enhanced N‐use efficiencies) evolutionary time periods. Furthermore, polyploids had lower transpiration rates but higher water‐use‐efficiencies than diploids, both of which were more pronounced under nutrient‐limiting conditions.ConclusionsCollectively we found that NP material costs increase with ploidy‐level but that material‐cost‐constraints might be lessened by organismal resource allocation/investment mechanisms that can also alter ecological dynamics and selection. Our results enhance mechanistic understanding of how global increases in nutrients might provide a release from material‐cost‐constraints in polyploids that could impact ploidy (or GS)‐specific performances, cytogeographic patterning, and multispecies community structuring.This article is protected by copyright. All rights reserved.

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Investigating the Role of Genomic Material Costs in Ecological, Evolutionary, and Invasion Dynamics Using the Solidago Gigantea (Giant Goldenrod) Polyploid Complex

Cited by 2 publications

References 0 publications

Special issue.: The role of whole genome duplication in evolutionary ecology

Special issue.: The role of whole genome duplication in evolutionary ecology

Genome‐material costs and functional trade‐offs in the autopolyploid Solidago gigantea (giant goldenrod) series

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