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The plasticity of NBS resistance genes in sorghum is driven by multiple evolutionary processes

Overview of attention for article published in BMC Plant Biology, September 2014
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Title
The plasticity of NBS resistance genes in sorghum is driven by multiple evolutionary processes
Published in
BMC Plant Biology, September 2014
DOI 10.1186/s12870-014-0253-z
Pubmed ID
Authors

Emma Mace, Shuaishuai Tai, David Innes, Ian Godwin, Wushu Hu, Bradley Campbell, Edward Gilding, Alan Cruickshank, Peter Prentis, Jun Wang, David Jordan

Abstract

Increased disease resistance is a key target of cereal breeding programs, with disease outbreaks continuing to threaten global food production, particularly in Africa. Of the disease resistance gene families, the nucleotide-binding site plus leucine-rich repeat (NBS-LRR) family is the most prevalent and ancient and is also one of the largest gene families known in plants. The sequence diversity in NBS-encoding genes was explored in sorghum, a critical food staple in Africa, with comparisons to rice and maize and with comparisons to fungal pathogen resistance QTL. In sorghum, NBS-encoding genes had significantly higher diversity in comparison to non NBS-encoding genes and were significantly enriched in regions of the genome under purifying and balancing selection, both through domestication and improvement. Ancestral genes, pre-dating species divergence, were more abundant in regions with signatures of selection than in regions not under selection. Sorghum NBS-encoding genes were also significantly enriched in the regions of the genome containing fungal pathogen disease resistance QTL; with the diversity of the NBS-encoding genes influenced by the type of co-locating biotic stress resistance QTL. NBS-encoding genes are under strong selection pressure in sorghum, through the contrasting evolutionary processes of purifying and balancing selection. Such contrasting evolutionary processes have impacted ancestral genes more than species-specific genes. Fungal disease resistance hot-spots in the genome, with resistance against multiple pathogens, provides further insight into the mechanisms that cereals use in the "arms race" with rapidly evolving pathogens in addition to providing plant breeders with selection targets for fast-tracking the development of high performing varieties with more durable pathogen resistance.

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Mendeley readers

Mendeley readers

The data shown below were compiled from readership statistics for 68 Mendeley readers of this research output. Click here to see the associated Mendeley record.

Geographical breakdown

Country Count As %
Spain 1 1%
Ethiopia 1 1%
France 1 1%
Unknown 65 96%

Demographic breakdown

Readers by professional status Count As %
Student > Ph. D. Student 23 34%
Researcher 12 18%
Student > Master 7 10%
Student > Doctoral Student 5 7%
Professor 2 3%
Other 5 7%
Unknown 14 21%
Readers by discipline Count As %
Agricultural and Biological Sciences 43 63%
Biochemistry, Genetics and Molecular Biology 7 10%
Arts and Humanities 2 3%
Unspecified 1 1%
Chemistry 1 1%
Other 0 0%
Unknown 14 21%
Attention Score in Context

Attention Score in Context

This research output has an Altmetric Attention Score of 2. 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 04 August 2015.
All research outputs
#14,225,412
of 22,805,349 outputs
Outputs from BMC Plant Biology
#1,156
of 3,244 outputs
Outputs of similar age
#130,521
of 252,372 outputs
Outputs of similar age from BMC Plant Biology
#16
of 61 outputs
Altmetric has tracked 22,805,349 research outputs across all sources so far. This one is in the 35th percentile – i.e., 35% of other outputs scored the same or lower than it.
So far Altmetric has tracked 3,244 research outputs from this source. They receive a mean Attention Score of 3.0. This one has gotten more attention than average, scoring higher than 61% of its peers.
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 252,372 tracked outputs that were published within six weeks on either side of this one in any source. This one is in the 45th percentile – i.e., 45% of its contemporaries scored the same or lower than it.
We're also able to compare this research output to 61 others from the same source and published within six weeks on either side of this one. This one has gotten more attention than average, scoring higher than 67% of its contemporaries.