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Genes
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Genetic Adaptation to Climate Change in Plants
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Genetic Adaptation to Climate Change in Plants

A special issue of Genes (ISSN 2073-4425). This special issue belongs to the section "Plant Genetics and Genomics".

Deadline for manuscript submissions: closed (21 October 2019) | Viewed by 9171

Special Issue Editor

Dr. Delphine Grivet

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Guest Editor
Department of Forest Ecology and Genetics INIA- CIFOR (Forest Research Centre), 28040 Madrid, Spain
Special Issues, Collections and Topics in MDPI journals

Special Issue Information

Dear Colleagues,

Rapid climate change is likely to impose strong selection pressures on plant populations.  One way for populations to respond to ongoing climate change is to adapt through the process of evolution by means of genetic changes. Studying how climate-mediated selection acts as a driver of evolutionary change in the genome allows linking evolutionary processes (natural selection) and the evolutionary response to selection (adaptation).

This special issue on Genetic Adaptation to Climate Change in Plants focuses on studies demonstrating that adaptive genetic changes have occurred and that climate change has been the causal force. Approaches based on experimental or natural settings are considered, as well as those contemplating spatial or temporal responses to climate change. Submission of both research articles and reviews are welcomed. The objective is to provide more empirical evidences for adaptive evolutionary responses to climate in plants, and thereby to better understand what are the drivers and mechanisms behind plant adaptation to new environments.

Dr. Delphine Grivet
Guest Editor

Manuscript Submission Information

Manuscripts should be submitted online at www.mdpi.com by registering and logging in to this website. Once you are registered, click here to go to the submission form. Manuscripts can be submitted until the deadline. All submissions that pass pre-check are peer-reviewed. Accepted papers will be published continuously in the journal (as soon as accepted) and will be listed together on the special issue website. Research articles, review articles as well as short communications are invited. For planned papers, a title and short abstract (about 100 words) can be sent to the Editorial Office for announcement on this website.

Submitted manuscripts should not have been published previously, nor be under consideration for publication elsewhere (except conference proceedings papers). All manuscripts are thoroughly refereed through a single-blind peer-review process. A guide for authors and other relevant information for submission of manuscripts is available on the Instructions for Authors page. Genes is an international peer-reviewed open access monthly journal published by MDPI.

Please visit the Instructions for Authors page before submitting a manuscript. The Article Processing Charge (APC) for publication in this open access journal is 2600 CHF (Swiss Francs). Submitted papers should be well formatted and use good English. Authors may use MDPI's English editing service prior to publication or during author revisions.

Keywords

  • adaptive genetic changes
  • climate change
  • common-gardens
  • transplant experiments
  • natural populations
  • environmental associations

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Published Papers (2 papers)

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Research

16 pages, 1721 KiB  
Article
Looking for Local Adaptation: Convergent Microevolution in Aleppo Pine (Pinus halepensis)
by Rose Ruiz Daniels, Richard S. Taylor, Santiago C. González-Martínez, Giovanni G. Vendramin, Bruno Fady, Sylvie Oddou-Muratorio, Andrea Piotti, Guillaume Simioni, Delphine Grivet and Mark A. Beaumont
Genes 2019, 10(9), 673; https://doi.org/10.3390/genes10090673 - 4 Sep 2019
Cited by 13 | Viewed by 4787
Abstract
Finding outlier loci underlying local adaptation is challenging and is best approached by suitable sampling design and rigorous method selection. In this study, we aimed to detect outlier loci (single nucleotide polymorphisms, SNPs) at the local scale by using Aleppo pine (Pinus [...] Read more.
Finding outlier loci underlying local adaptation is challenging and is best approached by suitable sampling design and rigorous method selection. In this study, we aimed to detect outlier loci (single nucleotide polymorphisms, SNPs) at the local scale by using Aleppo pine (Pinus halepensis), a drought resistant conifer that has colonized many habitats in the Mediterranean Basin, as the model species. We used a nested sampling approach that considered replicated altitudinal gradients for three contrasting sites. We genotyped samples at 294 SNPs located in genomic regions selected to maximize outlier detection. We then applied three different statistical methodologies—Two Bayesian outlier methods and one latent factor principal component method—To identify outlier loci. No SNP was an outlier for all three methods, while eight SNPs were detected by at least two methods and 17 were detected only by one method. From the intersection of outlier SNPs, only one presented an allelic frequency pattern associated with the elevational gradient across the three sites. In a context of multiple populations under similar selective pressures, our results underline the need for careful examination of outliers detected in genomic scans before considering them as candidates for convergent adaptation. Full article
(This article belongs to the Special Issue Genetic Adaptation to Climate Change in Plants)
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15 pages, 3063 KiB  
Article
Gene Flow and Genetic Variation Explain Signatures of Selection across a Climate Gradient in Two Riparian Species
by Tara Hopley and Margaret Byrne
Genes 2019, 10(8), 579; https://doi.org/10.3390/genes10080579 - 31 Jul 2019
Cited by 13 | Viewed by 3525
Abstract
Many species occur across environmental gradients and it is expected that these species will exhibit some signals of adaptation as heterogeneous environments and localized gene flow may facilitate local adaptation. While riparian zones can cross climate gradients, many of which are being impacted [...] Read more.
Many species occur across environmental gradients and it is expected that these species will exhibit some signals of adaptation as heterogeneous environments and localized gene flow may facilitate local adaptation. While riparian zones can cross climate gradients, many of which are being impacted by climate change, they also create microclimates for the vegetation, reducing environmental heterogeneity. Species with differing distributions in these environments provide an opportunity to investigate the importance of genetic connectivity in influencing signals of adaptation over relatively short geographical distance. Association analysis with genomic data was used to compare signals of selection to climate variables in two species that have differing distributions along a river traversing a climate gradient. Results demonstrate links between connectivity, standing genetic variation, and the development of signals of selection. In the restricted species, the combination of high gene flow in the middle and lower catchment and occurrence in a microclimate created along riverbanks likely mitigated the development of selection to most climatic variables. In contrast the more widely distributed species with low gene flow showed a stronger signal of selection. Together these results strengthen our knowledge of the drivers and scale of adaptation and reinforce the importance of connectivity across a landscape to maintain adaptive potential of plant species. Full article
(This article belongs to the Special Issue Genetic Adaptation to Climate Change in Plants)
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