Direct and legacy effects of genotypic diversity on population performance of Hydrocotyle vulgaris

Begum, Ghazala; Gao, Jun-Qin; Song, Minghua; Xue, Wei; Yu, Fei‐Hai

doi:10.1016/j.ecolind.2022.109570

Cited by 4 publications

(7 citation statements)

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“…We hypothesized a positive effect of genotypic richness on the growth of H. vulgaris population, as increasing the number of genotypes may promote the complementary utilization of resources and increase the occurrence probability of productive genotypes ( Crutsinger et al., 2006 ; Hughes et al., 2008 ; Kotowska et al., 2010 ; Begum et al., 2022 ). However, we found that genotypic richness did not influence plant growth in this study and a similar result has also been reported in several other studies ( Fridley and Grime, 2010 ; Prieto et al., 2015 ; Schöb et al., 2015 ).…”

Section: Discussionmentioning

confidence: 99%

“…Similarly, increasing genotypic richness of a plant population may also promote the complementary utilization of resources and increase probability of the presence of particularly productive genotypes, as different genotypes of the same species also vary in their abilities to acquire resources ( Fridley et al., 2007 ; Lankau and Strauss, 2007 ; Hughes et al., 2008 ; Baron et al., 2015 ). Thus, increasing genotypic richness of a plant population may increase its productivity ( Crutsinger et al., 2006 ; Lankau and Strauss, 2007 ; Fridley and Grime, 2010 ; Kotowska et al., 2010 ; Schöb et al., 2015 ; Begum et al., 2022 ) and consequently the ability to remediate the contaminated soil. However, how genotypic richness influences the population productivity in soil co-contaminated by heavy metals and organic pollutants was largely unknown.…”

Section: Introductionmentioning

confidence: 99%

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Co-contamination by heavy metal and organic pollutant alters impacts of genotypic richness on soil nutrients

et al. 2023

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Co-contamination by heavy metal and organic pollutant may negatively influence plant performance, and increasing the number of genotypes for a plant population may reduce this negative effect. To test this hypothesis, we constructed experimental populations of Hydrocotyle vulgaris consisting of single, four or eight genotypes in soils contaminated by cadmium, cypermethrin or both. Biomass, leaf area and stem internode length of H. vulgaris were significantly lower in the soil contaminated by cypermethrin and by both cadmium and cypermethrin than in the soil contaminated by cadmium only. A reverse pattern was found for specific internode length and specific leaf area. In general, genotypic richness or its interaction with soil contamination did not influence plant growth or morphology. However, soil nutrients varied in response to soil contamination and genotypic richness. Moreover, plant population growth was positively correlated to soil total nitrogen, but negatively correlated to total potassium and organic matter. We conclude that co-contamination by cadmium and cypermethrin may suppress the growth of H. vulgaris population compared to contamination by cadmium only, but genotypic richness may play little role in regulating these effects.

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Section: Discussionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Co-contamination by heavy metal and organic pollutant alters impacts of genotypic richness on soil nutrients

et al. 2023

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“…Each of these two diversity treatments was replicated five times, but the replication was at the diversity level rather than at the genotypic combination level ( Appendix Table S1 ). This approach was commonly used when testing the effect of species or genotypic diversity ( Wang et al., 2021 ; Begum et al., 2022 ; Huang et al., 2023 ). We also ensured that the frequency of occurrence of each genotype was the same.…”

Section: Methodsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

“…Besides species diversity, genetic diversity is another key component of biodiversity ( Jiang et al., 2021 ; Begum et al., 2022 ; Huang et al., 2022 ). Similar to the impact of plant species diversity, increasing plant genetic diversity can also affect population performance and ecosystem functions ( Hughes et al., 2008 ; Begum et al., 2022 ). For instance, genotypic diversity has been shown to affect plant biomass, root morphology and nutrient uptake ( Abbott and Stachowicz, 2016 ; Semchenko et al., 2021 ; Huang et al., 2022 ; Begum et al., 2023 ).…”

Section: Introductionmentioning

confidence: 99%

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Does genotypic diversity of Hydrocotyle vulgaris affect CO2 and CH4 fluxes?

Zhu,

Xue,

Gao

et al. 2023

Front. Plant Sci.

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Biodiversity plays important roles in ecosystem functions and genetic diversity is a key component of biodiversity. While effects of genetic diversity on ecosystem functions have been extensively documented, no study has tested how genetic diversity of plants influences greenhouse gas fluxes from plant-soil systems. We assembled experimental populations consisting of 1, 4 or 8 genotypes of the clonal plant Hydrocotyle vulgaris in microcosms, and measured fluxes of CO2 and CH4 from the microcosms. The fluxes of CO2 and CO2 equivalent from the microcosms with the 1-genotype populations of H. vulgaris were significantly lower than those with the 4- and 8-genotype populations, and such an effect increased significantly with increasing the growth period. The cumulative CO2 flux was significantly negatively related to the growth of the H. vulgaris populations. However, genotypic diversity did not significantly affect the flux of CH4. We conclude that genotypic diversity of plant populations can influence CO2 flux from plant-soil systems. The findings highlight the importance of genetic diversity in regulating greenhouse gas fluxes.

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Genotypic richness affects inorganic N uptake and N form preference of a clonal plant via altering soil N pools

Zhu,

Gao,

Xue

et al. 2024

Biol Fertil Soils

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Direct and legacy effects of genotypic diversity on population performance of Hydrocotyle vulgaris

Cited by 4 publications

References 58 publications

Co-contamination by heavy metal and organic pollutant alters impacts of genotypic richness on soil nutrients

Co-contamination by heavy metal and organic pollutant alters impacts of genotypic richness on soil nutrients

Does genotypic diversity of Hydrocotyle vulgaris affect CO2 and CH4 fluxes?

Genotypic richness affects inorganic N uptake and N form preference of a clonal plant via altering soil N pools

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