scholarly journals Hurricanes overcome migration lag and shape intraspecific genetic variation beyond a poleward mangrove range limit

2020 ◽  
Vol 29 (14) ◽  
pp. 2583-2597
Author(s):  
John Paul Kennedy ◽  
Emily M. Dangremond ◽  
Matthew A. Hayes ◽  
Richard F. Preziosi ◽  
Jennifer K. Rowntree ◽  
...  
Keyword(s):  
Genetic Variation ◽  
Range Limit ◽  
Intraspecific Genetic Variation

Soybean intraspecific genetic variation in response to elevated CO2

2019 ◽  
Vol 65 (12) ◽  
pp. 1733-1744 ◽  
Author(s):  
Li ◽  
Yu ◽  
Yang ◽  
Jin ◽  
Wang ◽  
...  
Keyword(s):  
Genetic Variation ◽  
Elevated Co2 ◽  
Intraspecific Genetic Variation

scholarly journals Genetic specificity of a plant–insect food web: Implications for linking genetic variation to network complexity

2016 ◽  
Vol 113 (8) ◽  
pp. 2128-2133 ◽  
Author(s):  
Matthew A. Barbour ◽  
Miguel A. Fortuna ◽  
Jordi Bascompte ◽  
Joshua R. Nicholson ◽  
Riitta Julkunen-Tiitto ◽  
...  
Keyword(s):  
Genetic Variation ◽  
Food Web ◽  
Host Plant ◽  
Trophic Interactions ◽  
Common Garden ◽  
Ecological Networks ◽  
Experimental Population ◽  
Trait Variation ◽  
Intraspecific Genetic Variation ◽  
Food Web Complexity

Theory predicts that intraspecific genetic variation can increase the complexity of an ecological network. To date, however, we are lacking empirical knowledge of the extent to which genetic variation determines the assembly of ecological networks, as well as how the gain or loss of genetic variation will affect network structure. To address this knowledge gap, we used a common garden experiment to quantify the extent to which heritable trait variation in a host plant determines the assembly of its associated insect food web (network of trophic interactions). We then used a resampling procedure to simulate the additive effects of genetic variation on overall food-web complexity. We found that trait variation among host-plant genotypes was associated with resistance to insect herbivores, which indirectly affected interactions between herbivores and their insect parasitoids. Direct and indirect genetic effects resulted in distinct compositions of trophic interactions associated with each host-plant genotype. Moreover, our simulations suggest that food-web complexity would increase by 20% over the range of genetic variation in the experimental population of host plants. Taken together, our results indicate that intraspecific genetic variation can play a key role in structuring ecological networks, which may in turn affect network persistence.

scholarly journals Intraspecific genetic variation in complex assemblages from mitochondrial metagenomics: comparison with DNA barcodes

2016 ◽  
Vol 8 (2) ◽  
pp. 248-256 ◽  
Author(s):  
Carola Gómez‐Rodríguez ◽  
Martijn J. T. N. Timmermans ◽  
Alex Crampton‐Platt ◽  
Alfried P. Vogler
Keyword(s):  
Genetic Variation ◽  
Dna Barcodes ◽  
Intraspecific Genetic Variation

Marine Macrophyte Detritus and Degradation: the Role of Intraspecific Genetic Variation

2017 ◽  
Vol 41 (5) ◽  
pp. 1223-1233
Author(s):  
Susan L. Williams ◽  
Jessica M. Abbott ◽  
Laura K. Reynolds ◽  
John J. Stachowicz
Keyword(s):  
Genetic Variation ◽  
Intraspecific Genetic Variation

scholarly journals PyroClean: Denoising Pyrosequences from Protein-Coding Amplicons for the Recovery of Interspecific and Intraspecific Genetic Variation

PLoS ONE ◽  
2013 ◽  
Vol 8 (3) ◽  
pp. e57615 ◽  
Author(s):  
Ricardo Ramirez-Gonzalez ◽  
Douglas W. Yu ◽  
Catharine Bruce ◽  
Darren Heavens ◽  
Mario Caccamo ◽  
...  
Keyword(s):  
Genetic Variation ◽  
Protein Coding ◽  
Intraspecific Genetic Variation

scholarly journals High-Level Genetic Diversity but No Population Structure Inferred from Nuclear and Mitochondrial Markers of the Peritrichous Ciliate Carchesium polypinum in the Grand River Basin (North America)

2009 ◽  
Vol 75 (10) ◽  
pp. 3187-3195 ◽  
Author(s):  
E. Gentekaki ◽  
D. H. Lynn
Keyword(s):  
Genetic Diversity ◽  
Population Structure ◽  
Genetic Variation ◽  
River Basin ◽  
Large Subunit ◽  
Population Level ◽  
Nuclear Markers ◽  
Mitochondrial Markers ◽  
Intraspecific Genetic Variation ◽  
Grand River

ABSTRACT Studies that assess intraspecific genetic variation in ciliates are few and quite recent. Consequently, knowledge of the subject and understanding of the processes that underlie it are limited. We sought to assess the degree of intraspecific genetic variation in Carchesium polypinum (Ciliophora: Peritrichia), a cosmopolitan, freshwater ciliate. We isolated colonies of C. polypinum from locations in the Grand River basin in Southwestern Ontario, Canada. We then used the nuclear markers—ITS1, ITS2, and the hypervariable regions of the large subunit rRNA—and an 819-bp fragment of the mitochondrial cytochrome c oxidase I gene (cox-1) to investigate the intraspecific genetic variation of C. polypinum and the degree of resolution of the above-mentioned markers at the population level. We also sought to determine whether the organism demonstrated any population structure that mapped onto the geography of the region. Our study shows that there is a high degree of genetic diversity at the isolate level, revealed by the mitochondrial markers but not the nuclear markers. Furthermore, our results indicate that C. polypinum is likely not a single morphospecies as previously thought.

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