Rapid Genetic Divergence of an Invasive Species, Spartina alterniflora, in China

Xia, Lu; Geng, Qifang; An, Shuqing

doi:10.3389/fgene.2020.00284

Cited by 26 publications

(22 citation statements)

References 73 publications

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“…Our study does not find any geographically distinct clustering of S. wightiana individuals from both clusterings, PCoA by SSR scores and phylogeny by ITS markers 69 . This can be attributed to the mixing of the genotypes across the regions via gene flow between populations 70 .…”

Section: Discussioncontrasting

confidence: 67%

Genetic diversity may help evolutionary rescue in a clonal endemic plant species of Western Himalaya

Sofi

Rashid

Lone

et al. 2021

Sci Rep

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Habitat loss due to climate change may cause the extinction of the clonal species with a limited distribution range. Thus, determining the genetic diversity required for adaptability by these species in sensitive ecosystems can help infer the chances of their survival and spread in changing climate. We studied the genetic diversity and population structure of Sambucus wightiana—a clonal endemic plant species of the Himalayan region for understanding its possible survival chances in anticipated climate change. Eight polymorphic microsatellite markers were used to study the allelic/genetic diversity and population structure. In addition, ITS1–ITS4 Sanger sequencing was used for phylogeny and SNP detection. A total number of 73 alleles were scored for 37 genotypes at 17 loci for 8 SSRs markers. The population structural analysis using the SSR marker data led to identifying two sub-populations in our collection of 37 S. wightiana genotypes, with 11 genotypes having mixed ancestry. The ITS sequence data show a specific allele in higher frequency in a particular sub-population, indicating variation in different S. wightiana accessions at the sequence level. The genotypic data of SSR markers and trait data of 11 traits of S. wightiana, when analyzed together, revealed five significant Marker-Trait Associations (MTAs) through Single Marker Analysis (SMA) or regression analysis. Most of the SSR markers were found to be associated with more than one trait, indicating the usefulness of these markers for working out marker-trait associations. Moderate to high genetic diversity observed in the present study may provide insurance against climate change to S. wightiana and help its further spread.

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Section: Discussioncontrasting

confidence: 67%

Genetic diversity may help evolutionary rescue in a clonal endemic plant species of Western Himalaya

Sofi

Rashid

Lone

et al. 2021

Sci Rep

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“…The occurrence data used in this study was compiled from data collected from the Global Biodiversity Information Facility (GBIF), and from literature surveyed from the Web of Knowledge in the case of specific species: S. densiflora, S. maritima, and S. patens in the Iberian Peninsula (Caçador et al, 2013); and S. alterniflora in the coastline of China (Cheng et al, 2006;Gao et al, 2007;Liu et al, 2007;Zhang et al, 2010Zhang et al, , 2020Wang et al, 2013Wang et al, , 2015Yang et al, 2013;Jin et al, 2016;Pang et al, 2017;Maebara et al, 2020;Xia et al, 2020;Yue et al, 2021 A specific set of filters was used for all species in each dataset to limit the data retrieved. The applied filters included "Human Observation" and "Preserved specimen" (for the Basis of Record); "Has Coordinate" set as true; "Has Geospatial issue" set as false.…”

Section: Species Data and Curationmentioning

confidence: 99%

Invasion and Extirpation Potential of Native and Invasive Spartina Species Under Climate Change

et al. 2021

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Coastal areas host some of the planet’s most productive ecosystems, providing life-sustaining ecological services and several benefits to humankind, while also being some of the most threatened areas (e.g., by globalization, climate change, and biological invasion). Salt marshes are coastal habitats with a key role in food and shelter provisioning, sediment deposition, nutrient cycling and carbon storage. Spartina spp. is a genus of grass halophytes which occurs in salt marshes worldwide, and includes species with different invasive potential. We evaluated the effect of climate change in the distribution and invasion potential of five Spartina species (S. anglica, S. alterniflora, S. densiflora, S. patens, and S. maritima) at a global scale. Species distribution models (SDMs) were applied on species occurrence data and atmospheric environmental predictors (WorldClim 2.1) to project potential changes in habitat suitability and associated changes in distribution and species co-occurrence until the end of the century, across four Shared Socioeconomic Pathway scenarios (i.e., SSP1-2.6 to SSP5-8.5). Projections showed a global trend for increasing species co-occurrence, with a general range expansion potentiated by increasing pathway severity. This study suggests that Spartina species can potentially benefit from climate change, predicting poleward expansions in the Northern Hemisphere for most species, with results pointing at increased conflict and invasion potential in Northern Europe and East Asian shorelines, already under strong invasive pressure. S. anglica is projected to remain a successful invader, with more severe scenarios likely favoring greater expansions. S. alterniflora exhibits very low expansion comparatively, despite exhibiting the same northward distribution shift. SSP1-2.6 produced the smallest change to species co-occurrence, suggesting a smaller potential for invasion-related conflicts, although still registering a potential net expansion for the Genus. Despite their limitations, SDMs can help establish general trends in climate change ecology and inform policymakers and environmental agents to ensure the correct management of these habitats and, ultimately, ecosystems.

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“…Testing this hypothesis would require comparing genetic profiles between the native and invasive peppertrees. However, S. molle populations in these regions probably experienced genetic bottlenecks, as often happens when alien plants are introduced into new regions (Prentis et al 2008;Xu et al 2015;Xia et al 2020). On the other hand, significant genetic structure and a low levels of population genetic diversity were observed in an analysis of nine populations of natural occurrence in the Brazilian Pampa biome (Lemos et al 2015).…”

Section: Discussionmentioning

confidence: 99%

A global assessment of the potential distribution of naturalized and planted populations of the ornamental alien tree Schinus molle

Ramírez‐Albores¹,

Richardson²,

Stefenon³

et al. 2021

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The Peruvian Peppertree (Schinus molle L.) is an evergreen tree native to semiarid environments of Peru and Bolivia in South America. This tree has been introduced and widely planted for ornamental and forestry purposes in several semiarid regions of the world because its seedlings are easily established and have a high survival rate; it also grows quickly, and it is tolerant of dry climates. We compared the global and regional niches of naturalized and planted populations of S. molle in order to examine the invasive stages and potential distribution of this species in four regions of the world. This work provides a novel approach for understanding the invasion dynamics of S. molle in these areas and elucidates the ecological processes that bring about such invasions. Most naturalized and planted populations were found to be in equilibrium with the environment. In its native range as well as in Australia and South Africa the models of the coverage area of habitat suitability for natural populations were the highest, whereas the coverage area of planted populations was lower. For planted populations in Australia and South Africa, a large percentage of predicted presences fell within sink populations. The invasion stages of S. molle vary across regions in its adventive range; this result may be attributable to residence time as well as climatic and anthropic factors that have contributed to the spread of populations.

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Rapid Genetic Divergence of an Invasive Species, Spartina alterniflora, in China

Cited by 26 publications

References 73 publications

Genetic diversity may help evolutionary rescue in a clonal endemic plant species of Western Himalaya

Genetic diversity may help evolutionary rescue in a clonal endemic plant species of Western Himalaya

Invasion and Extirpation Potential of Native and Invasive Spartina Species Under Climate Change

A global assessment of the potential distribution of naturalized and planted populations of the ornamental alien tree Schinus molle

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