Quantifying temporal change in plant population attributes: insights from a resurrection approach

Gómez, Rocío; Méndez‐Vigo, Belén; Marcer, Arnald; Alonso‐Blanco, Carlos; Picó, F. Xavier

doi:10.1093/aobpla/ply063

Cited by 18 publications

(29 citation statements)

References 101 publications

(150 reference statements)

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“…However, we need to deal with the latter to understand the former. In this sense, recent resurrection studies showed that natural A. thaliana populations exhibited substantial changes in their genetic composition in just a decade [77,78]. The extent of temporal genetic variation in A. thaliana represents a reminder that populations are not static, and that the geographic distribution of genetic diversity within and among-populations is changing too.…”

Section: Discussionmentioning

confidence: 99%

“…Natural A. thaliana populations are made of patches of individuals widely differing in size and density, which is important when it comes to design a sampling scheme to study the spatio-temporal distribution of genetic diversity in A. thaliana [49,57,65,77]. For each population and whenever possible, we collected seeds from several individuals from different patches (separated 1-20 m from each other) representing well each study population.…”

Section: Source Populationsmentioning

confidence: 99%

“…This choice was also based on a previous large-scale study exploring the within-and among-population partitioning of genetic diversity in A. thaliana, which yielded interpretable results with four individuals per population [40]. Besides, other studies using more individuals per population and different markers, albeit at smaller geographical scales, also found populations with no or very low genetic diversity (see below), indicating that is not unusual in A. thaliana [40,41,49,64,65,77].…”

Section: Source Populationsmentioning

confidence: 99%

“…To make sure that historical factors were not an issue in this study, we estimated the temporal landscape dynamics of all study populations. We examined all aerial orthophotographs available for each population (spanning between 1945 and 2016), which were retrieved from different public regional administrations in Spain [77] with a tool specifically developed for this purpose. We excluded up to 15 populations because aerial orthophotographs were not available.…”

Section: Historical Factorsmentioning

confidence: 99%

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Ecological, genetic and evolutionary drivers of regional genetic differentiation in Arabidopsis thaliana

et al. 2020

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Background: Disentangling the drivers of genetic differentiation is one of the cornerstones in evolution. This is because genetic diversity, and the way in which it is partitioned within and among populations across space, is an important asset for the ability of populations to adapt and persist in changing environments. We tested three major hypotheses accounting for genetic differentiation-isolation-by-distance (IBD), isolation-by-environment (IBE) and isolation-by-resistance (IBR)-in the annual plant Arabidopsis thaliana across the Iberian Peninsula, the region with the largest genomic diversity. To that end, we sampled, genotyped with genome-wide SNPs, and analyzed 1772 individuals from 278 populations distributed across the Iberian Peninsula. Results: IBD, and to a lesser extent IBE, were the most important drivers of genetic differentiation in A. thaliana. In other words, dispersal limitation, genetic drift, and to a lesser extent local adaptation to environmental gradients, accounted for the within-and among-population distribution of genetic diversity. Analyses applied to the four Iberian genetic clusters, which represent the joint outcome of the long demographic and adaptive history of the species in the region, showed similar results except for one cluster, in which IBR (a function of landscape heterogeneity) was the most important driver of genetic differentiation. Using spatial hierarchical Bayesian models, we found that precipitation seasonality and topsoil pH chiefly accounted for the geographic distribution of genetic diversity in Iberian A. thaliana. Conclusions: Overall, the interplay between the influence of precipitation seasonality on genetic diversity and the effect of restricted dispersal and genetic drift on genetic differentiation emerges as the major forces underlying the evolutionary trajectory of Iberian A. thaliana.

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Section: Discussionmentioning

confidence: 99%

Section: Source Populationsmentioning

confidence: 99%

Section: Source Populationsmentioning

confidence: 99%

Section: Historical Factorsmentioning

confidence: 99%

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Ecological, genetic and evolutionary drivers of regional genetic differentiation in Arabidopsis thaliana

et al. 2020

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“…Rapid evolution in response to conditions linked to climate change has been detected for numerous taxa in as few as a couple of generations (reviewed in Parmesan, 2006; Franks, Hamann, & Weis, 2018). One approach used to detect this rapid evolution in plants is the resurrection study, in which seeds collected at one point in time (ancestral) are grown and compared with those collected later (descendant; Etterson et al, 2016; Franks, 2011; Franks et al, 2018; Franks, Sim, & Weis, 2007; Gómez, Méndez‐Vigo, Marcer, Alonso‐Blanco, & Picó, 2018; Hamann et al, 2018; Sultan, Horgan‐Kobelski, Nichols, Riggs, & Waples, 2012; Thomann, Imbert, Engstrand, & Cheptou, 2015; Vigouroux et al, 2011). For plants, this approach is dependent on the collection and storage of seeds over a period in which an environmental change occurs.…”

Section: Introductionmentioning

confidence: 99%

Evolutionary and plastic changes in a native annual plant after a historic drought

Lambrecht

Gujral

Renshaw

et al. 2020

Ecology and Evolution

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Severe droughts are forecast to increase with global change. Approaches that enable the study of contemporary evolution, such as resurrection studies, are valuable for providing insights into the responses of populations to global change. In this study, we used a resurrection approach to study the evolution of the California native Leptosiphon bicolor (true babystars, Polemoniaceae) across populations differing in precipitation in response to the state's recent prolonged drought (2011–2017). In the Mediterranean climate region in which L. bicolor grows, this historic drought effectively shortened its growing season. We used seeds collected both before and after this drought from three populations found along a moisture availability gradient to assess contemporary evolution in a common garden greenhouse study. We coupled this with a drought experiment to examine plasticity. We found evolution toward earlier flowering after the historic drought in the wettest of the three populations, while plasticity to experimental drought was observed across all three. We also observed trade‐offs associated with earlier flowering. In the driest population, plants that flowered earlier had lower intrinsic water‐use efficiency than those flowering later, which was an expected pattern. Unexpectedly, earlier flowering plants had larger flowers. Two populations exhibited evolution and plasticity toward smaller flowers with drought. The third exhibited evolution toward larger flowers, but displayed no plasticity. Our results provide valuable insights into differences among native plant populations in response to drought.

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Population responses to a historic drought across the range of the common monkeyflower (Mimulus guttatus)

Kooyers

Morioka

Colicchio

et al. 2021

American J of Botany

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PREMISE Due to climate change, more frequent and intense periodic droughts are predicted to increasingly pose major challenges to the persistence of plant populations. When a severe drought occurs over a broad geographical region, independent responses by individual populations provide replicated natural experiments for examining the evolution of drought resistance and the potential for evolutionary rescue. METHODS We used a resurrection approach to examine trait evolution in populations of the common monkeyflower, Mimulus guttatus, exposed to a record drought in California from 2011 to 2017. Specifically, we compared variation in traits related to drought escape and avoidance from seeds collected from 37 populations pre‐ and post‐drought in a common garden. In a parallel experiment, we evaluated fitness in two populations, one which thrived and one which was nearly extirpated during the drought, under well‐watered and dry‐down conditions. RESULTS We observed substantial variation among populations in trait evolution. In the subset of populations where phenotypes changed significantly, divergence proceeded along trait correlations with some populations flowering rapidly with less vegetative tissue accumulation and others delaying flowering with greater vegetative tissue accumulation. The degree of trait evolution was only weakly correlated with drought intensity but strongly correlated with initial levels of standing variation. Fitness was higher in the post‐drought than pre‐drought accessions in both treatments for the thriving population, but lower in both treatments for the nearly extirpated population. CONCLUSIONS Together, our results indicate that evolutionary responses to drought are context dependent and reflect the standing genetic variation and genetic correlations present within populations.

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Quantifying temporal change in plant population attributes: insights from a resurrection approach

Cited by 18 publications

References 101 publications

Ecological, genetic and evolutionary drivers of regional genetic differentiation in Arabidopsis thaliana

Ecological, genetic and evolutionary drivers of regional genetic differentiation in Arabidopsis thaliana

Evolutionary and plastic changes in a native annual plant after a historic drought

Population responses to a historic drought across the range of the common monkeyflower (Mimulus guttatus)

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