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R-gene variation across Arabidopsis lyrata subspecies: effects of population structure, selection and mating system

Overview of attention for article published in BMC Ecology and Evolution, May 2016
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Title
R-gene variation across Arabidopsis lyrata subspecies: effects of population structure, selection and mating system
Published in
BMC Ecology and Evolution, May 2016
DOI 10.1186/s12862-016-0665-5
Pubmed ID
Authors

James Buckley, Elizabeth Kilbride, Volkan Cevik, Joana G. Vicente, Eric B. Holub, Barbara K. Mable

Abstract

Examining allelic variation of R-genes in closely related perennial species of Arabidopsis thaliana is critical to understanding how population structure and ecology interact with selection to shape the evolution of innate immunity in plants. We finely sampled natural populations of Arabidopsis lyrata from the Great Lakes region of North America (A. l. lyrata) and broadly sampled six European countries (A. l. petraea) to investigate allelic variation of two R-genes (RPM1 and WRR4) and neutral genetic markers (Restriction Associated DNA sequences and microsatellites) in relation to mating system, phylogeographic structure and subspecies divergence. Fine-scale sampling of populations revealed strong effects of mating system and population structure on patterns of polymorphism for both neutral loci and R-genes, with no strong evidence for selection. Broad geographic sampling revealed evidence of balancing selection maintaining polymorphism in R-genes, with elevated heterozygosity and diversity compared to neutral expectations and sharing of alleles among diverged subspecies. Codon-based tests detected both positive and purifying selection for both R-genes, as commonly found for animal immune genes. Our results highlight that combining fine and broad-scale sampling strategies can reveal the multiple factors influencing polymorphism and divergence at potentially adaptive genes such as R-genes.

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Mendeley readers

Mendeley readers

The data shown below were compiled from readership statistics for 37 Mendeley readers of this research output. Click here to see the associated Mendeley record.

Geographical breakdown

Country Count As %
United States 1 3%
Unknown 36 97%

Demographic breakdown

Readers by professional status Count As %
Student > Ph. D. Student 8 22%
Researcher 8 22%
Student > Master 4 11%
Student > Bachelor 3 8%
Student > Doctoral Student 2 5%
Other 6 16%
Unknown 6 16%
Readers by discipline Count As %
Agricultural and Biological Sciences 19 51%
Biochemistry, Genetics and Molecular Biology 5 14%
Environmental Science 2 5%
Economics, Econometrics and Finance 2 5%
Medicine and Dentistry 1 3%
Other 0 0%
Unknown 8 22%
Attention Score in Context

Attention Score in Context

This research output has an Altmetric Attention Score of 3. This is our high-level measure of the quality and quantity of online attention that it has received. This Attention Score, as well as the ranking and number of research outputs shown below, was calculated when the research output was last mentioned on 07 April 2017.
All research outputs
#8,533,995
of 25,371,288 outputs
Outputs from BMC Ecology and Evolution
#1,997
of 3,714 outputs
Outputs of similar age
#114,212
of 312,450 outputs
Outputs of similar age from BMC Ecology and Evolution
#49
of 79 outputs
Altmetric has tracked 25,371,288 research outputs across all sources so far. This one is in the 43rd percentile – i.e., 43% of other outputs scored the same or lower than it.
So far Altmetric has tracked 3,714 research outputs from this source. They typically receive a lot more attention than average, with a mean Attention Score of 12.5. This one is in the 35th percentile – i.e., 35% of its peers scored the same or lower than it.
Older research outputs will score higher simply because they've had more time to accumulate mentions. To account for age we can compare this Altmetric Attention Score to the 312,450 tracked outputs that were published within six weeks on either side of this one in any source. This one has gotten more attention than average, scoring higher than 53% of its contemporaries.
We're also able to compare this research output to 79 others from the same source and published within six weeks on either side of this one. This one is in the 36th percentile – i.e., 36% of its contemporaries scored the same or lower than it.