Interactions between Soil Habitat and Geographic Range Location Affect Plant Fitness

Stanton-Geddes, John; Shaw, Ruth G.; Tiffin, Peter

doi:10.1371/journal.pone.0036015

Cited by 30 publications

(29 citation statements)

References 41 publications

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“…New reciprocal transplant experiments are needed for commercially less-important species, which may be most threatened, but which are under-represented in existing provenance trials. Furthermore, the present provenance trials ignore the likely important early fitness components of germination and establishment – these components also need to be studied (as is being done in herbaceous plants, Huang et al ., 2010; Stanton-Geddes et al ., 2012). The new experiments should include field sites at and beyond existing range margins.…”

Section: Conclusion and Suggestions For Future Researchmentioning

confidence: 99%

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Potential for evolutionary responses to climate change – evidence from tree populations

Alberto

Aitken

Alı́a

et al. 2013

Global Change Biology

758

816

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Evolutionary responses are required for tree populations to be able to track climate change. Results of 250 years of common garden experiments show that most forest trees have evolved local adaptation, as evidenced by the adaptive differentiation of populations in quantitative traits, reflecting environmental conditions of population origins. On the basis of the patterns of quantitative variation for 19 adaptation-related traits studied in 59 tree species (mostly temperate and boreal species from the Northern hemisphere), we found that genetic differentiation between populations and clinal variation along environmental gradients were very common (respectively, 90% and 78% of cases). Thus, responding to climate change will likely require that the quantitative traits of populations again match their environments. We examine what kind of information is needed for evaluating the potential to respond, and what information is already available. We review the genetic models related to selection responses, and what is known currently about the genetic basis of the traits. We address special problems to be found at the range margins, and highlight the need for more modeling to understand specific issues at southern and northern margins. We need new common garden experiments for less known species. For extensively studied species, new experiments are needed outside the current ranges. Improving genomic information will allow better prediction of responses. Competitive and other interactions within species and interactions between species deserve more consideration. Despite the long generation times, the strong background in quantitative genetics and growing genomic resources make forest trees useful species for climate change research. The greatest adaptive response is expected when populations are large, have high genetic variability, selection is strong, and there is ecological opportunity for establishment of better adapted genotypes.

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Section: Conclusion and Suggestions For Future Researchmentioning

confidence: 99%

“…The extent and significance of adaptive phenotypic plasticity is still debated (Valladares et al ., 2007), and experimental studies on range margins are still few (Angert, 2009; Stanton-Geddes et al ., 2012). Wang et al .…”

Section: Conclusion and Suggestions For Future Researchmentioning

confidence: 99%

Potential for evolutionary responses to climate change – evidence from tree populations

Alberto

Aitken

Alı́a

et al. 2013

Global Change Biology

758

816

View full text Add to dashboard Cite

show abstract

“…, and similarly as in seed size can lead to overlooking important genetically determined properties of individuals and populations. Of the statistical approaches, probably the most robust found in the surveyed literature is that of Stanton-Geddes et al (2012). They accounted for transgenerational effects by examining plant performance at different life stages.…”

Section: Seeds Of Parents Grown For Two Generations In a Common Envirmentioning

confidence: 99%

“…They accounted for transgenerational effects by examining plant performance at different life stages. If they found a constant, significant difference among plants between early and late life-history stages, they considered the difference to be caused by something other than transgenerational effects (Stanton-Geddes et al 2012). This approach can detect and account for transgenerational effects that change during the plant lifespan (e.g.…”

Section: Seeds Of Parents Grown For Two Generations In a Common Envirmentioning

confidence: 99%

Pitfalls in ecological research – transgenerational effects

Latzel

2015

Folia Geobot

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The phenotype of an individual can be affected by the environment of its predecessors, a phenomenon commonly referred to as transgenerational effects. These effects, if not properly acknowledged and/or controlled, can impede proper interpretation of ecological studies. Using examples from more than 40 recently published studies, I discuss the most frequently used methodological approaches to deal with unwanted transgenerational effects in ecological research. In this literature, growing one generation in a common environment before the experiment or fitting seed and/or seedling size as a covariate were the most prevalent tools used to account for or even out transgenerational effects. Although these methods can efficiently control for transgenerational effects of limited generational persistence, usually just one generation of offspring, they cannot sufficiently control for effects across multiple generations. I propose that, whenever possible in ecological experiments, two generations of plants be grown in a common environment prior to the main experiment and that extreme caution should be exercised in interpreting results if the degree of transgenerational effects is not known. I also suggest that in addition to controlling for transgenerational effects in ecological research, we should actively investigate transgenerational effects as a source of plant variation.

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“…; Etterson ; Volis ; Stanton‐Geddes et al . ,b). A failure to detect local adaptation in reciprocal transplant experiments can result from several methodological constraints.…”

Section: Introductionmentioning

confidence: 99%

Role of selection and gene flow in population differentiation at the edge vs. interior of the species range differing in climatic conditions

2016

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Evaluating the relative importance of neutral and adaptive processes as determinants of population differentiation across environments is a central theme of evolutionary biology. We applied the QST-FST comparison flanked by a direct test for local adaptation to infer the role of climate-driven selection and gene flow in population differentiation of an annual grass Avena sterilis in two distinct parts of the species range, edge and interior, which represent two globally different climates, desert and Mediterranean. In a multiyear reciprocal transplant experiment, the plants of desert and Mediterranean origin demonstrated home advantage, and population differentiation in several phenotypic traits related to reproduction exceeded neutral predictions, as determined by comparisons of QST values with theoretical FST distributions. Thus, variation in these traits likely resulted from local adaptation to desert and Mediterranean environments. The two separate common garden experiments conducted with different experimental design revealed that two population comparisons, in contrast to multi-population comparisons, are likely to detect population differences in virtually every trait, but many of these differences reflect effects of local rather than regional environment. We detected a general reduction in neutral (SSR) genetic variation but not in adaptive quantitative trait variation in peripheral desert as compared with Mediterranean core populations. On the other hand, the molecular data indicated intensive gene flow from the Mediterranean core towards desert periphery. Although species range position in our study (edge vs. interior) was confounded with climate (desert vs. Mediterranean), the results suggest that the gene flow from the species core does not have negative consequences for either performance of the peripheral plants or their adaptive potential.

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Interactions between Soil Habitat and Geographic Range Location Affect Plant Fitness

Cited by 30 publications

References 41 publications

Potential for evolutionary responses to climate change – evidence from tree populations

Potential for evolutionary responses to climate change – evidence from tree populations

Pitfalls in ecological research – transgenerational effects

Role of selection and gene flow in population differentiation at the edge vs. interior of the species range differing in climatic conditions

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