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Reproductive isolation of a new hybrid species, Senecio eboracensis Abbott

Overview of attention for article published in Heredity, March 2004
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  • In the top 25% of all research outputs scored by Altmetric
  • High Attention Score compared to outputs of the same age (93rd percentile)
  • Above-average Attention Score compared to outputs of the same age and source (62nd percentile)

Mentioned by

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1 news outlet
wikipedia
2 Wikipedia pages

Citations

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48 Dimensions

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60 Mendeley
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Title
Reproductive isolation of a new hybrid species, Senecio eboracensis Abbott & Lowe (Asteraceae)
Published in
Heredity, March 2004
DOI 10.1038/sj.hdy.6800432
Pubmed ID
Authors

A J Lowe, R J Abbott

Abstract

The nature and extent of reproductive isolation was examined between a new self-compatible hybrid species Senecio eboracensis (2n=40) and its parents, self-incompatible S. squalidus (2n=20) and self-compatible S. vulgaris (2n=40). The triploid F(1) of S. eboracensis x S. squalidus exhibited very low seed set (x=0.63%), and F(2) and F(3) progeny were able to recover nominal levels of fertility (x=23.9 and 9.7%), while F(1) and F(2) offspring of S. eboracensis x S. vulgaris showed reduced seed set (x=63.8 and 58.8%). In both cases, evidence from previous work indicates that reduced fertility is associated with meiotic chromosome mispairing, and is a likely consequence of recombining both parental genomes within this new taxon. No hybrid offspring between S. eboracensis and S. squalidus were found in the wild, and only one such hybrid was recorded among 769 progeny produced by S. eboracensis surrounded by S. squalidus on an experimental plot. Natural crossing between S. eboracensis and S. vulgaris was recorded to be very low (between 0 and 1.46%) in the wild, but rose to 18.3% when individuals of S. eboracensis were surrounded by plants of S. vulgaris. It was concluded that strong breeding barriers exist between the new hybrid species and its two parents. Prezygotic isolation between S. eboracensis and S. vulgaris is likely to be largely due to both species reproducing by predominant self-fertilisation. However, differences recorded for germination, seedling survival, time of flowering and characters associated with pollinator attraction, plus significant clumping of juvenile and adult conspecifics in the wild, probably also contribute to reproductive isolation and ecological differentiation.

Mendeley readers

Mendeley readers

The data shown below were compiled from readership statistics for 60 Mendeley readers of this research output. Click here to see the associated Mendeley record.

Geographical breakdown

Country Count As %
United Kingdom 2 3%
Spain 1 2%
United States 1 2%
Brazil 1 2%
Unknown 55 92%

Demographic breakdown

Readers by professional status Count As %
Researcher 15 25%
Student > Ph. D. Student 14 23%
Professor > Associate Professor 6 10%
Student > Bachelor 4 7%
Student > Doctoral Student 3 5%
Other 9 15%
Unknown 9 15%
Readers by discipline Count As %
Agricultural and Biological Sciences 47 78%
Biochemistry, Genetics and Molecular Biology 3 5%
Environmental Science 1 2%
Social Sciences 1 2%
Neuroscience 1 2%
Other 0 0%
Unknown 7 12%
Attention Score in Context

Attention Score in Context

This research output has an Altmetric Attention Score of 13. 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 28 November 2019.
All research outputs
#2,267,542
of 22,687,320 outputs
Outputs from Heredity
#321
of 2,152 outputs
Outputs of similar age
#3,226
of 54,417 outputs
Outputs of similar age from Heredity
#3
of 8 outputs
Altmetric has tracked 22,687,320 research outputs across all sources so far. Compared to these this one has done well and is in the 89th percentile: it's in the top 25% of all research outputs ever tracked by Altmetric.
So far Altmetric has tracked 2,152 research outputs from this source. They typically receive more attention than average, with a mean Attention Score of 9.0. This one has done well, scoring higher than 84% 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 54,417 tracked outputs that were published within six weeks on either side of this one in any source. This one has done particularly well, scoring higher than 93% of its contemporaries.
We're also able to compare this research output to 8 others from the same source and published within six weeks on either side of this one. This one has scored higher than 5 of them.