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Hybridisation and detection of a hybrid zone between mesic and desert ragworts (Senecio) across an aridity gradient in the eastern Mediterranean

Research output: Contribution to journalArticlepeer-review

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Hybridisation and detection of a hybrid zone between mesic and desert ragworts (Senecio) across an aridity gradient in the eastern Mediterranean. / Abbott, Richard J.; Comes, Hans P; Goodwin, Zoe A; Brennan, Adrian C.

In: Plant Ecology & Diversity, Vol. 11, No. 3, 2018, p. 267-281.

Research output: Contribution to journalArticlepeer-review

Harvard

Abbott, RJ, Comes, HP, Goodwin, ZA & Brennan, AC 2018, 'Hybridisation and detection of a hybrid zone between mesic and desert ragworts (Senecio) across an aridity gradient in the eastern Mediterranean', Plant Ecology & Diversity, vol. 11, no. 3, pp. 267-281. https://doi.org/10.1080/17550874.2018.1496366

APA

Abbott, R. J., Comes, H. P., Goodwin, Z. A., & Brennan, A. C. (2018). Hybridisation and detection of a hybrid zone between mesic and desert ragworts (Senecio) across an aridity gradient in the eastern Mediterranean. Plant Ecology & Diversity, 11(3), 267-281. https://doi.org/10.1080/17550874.2018.1496366

Vancouver

Abbott RJ, Comes HP, Goodwin ZA, Brennan AC. Hybridisation and detection of a hybrid zone between mesic and desert ragworts (Senecio) across an aridity gradient in the eastern Mediterranean. Plant Ecology & Diversity. 2018;11(3):267-281. https://doi.org/10.1080/17550874.2018.1496366

Author

Abbott, Richard J. ; Comes, Hans P ; Goodwin, Zoe A ; Brennan, Adrian C. / Hybridisation and detection of a hybrid zone between mesic and desert ragworts (Senecio) across an aridity gradient in the eastern Mediterranean. In: Plant Ecology & Diversity. 2018 ; Vol. 11, No. 3. pp. 267-281.

Bibtex - Download

@article{8186badc41614933ab141ff7c50feb52,
title = "Hybridisation and detection of a hybrid zone between mesic and desert ragworts (Senecio) across an aridity gradient in the eastern Mediterranean",
abstract = "Background: Hybrid zones provide excellent opportunities for studying plant adaptation and speciation.Aims: We tested whether two herbaceous species of Senecio, S. vernalis and S. glaucus, hybridise in the eastern Mediterranean region and form a hybrid zone across an aridity gradient in the Jordan Rift Valley.Methods: Allozyme variation surveyed across both species was analysed by the programme STRUCTURE to assign individuals to genetic groups and determine levels of admixture. Populations in the Jordan Rift Valley were subsequently subjected to a cline analysis.Results: STRUCTURE showed that interspecific hybrids were produced at low frequency along the Israeli coastal plain where S. glaucus is represented by ssp. glaucus. In contrast, hybrids were more commonly produced in central populations of the Jordan Rift Valley. Here, the two species form a hybrid zone with S. vernalis occurring in mesic sites to the north and S. glaucus (ssp. coronopifolius) in arid sites to the south. Cline analysis showed that the hybrid zone is centred towards the northern end of the Dead Sea, but the analysis failed to distinguish how it is maintained.Conclusions: Future detailed genetic and ecological analysis of the Senecio hybrid zone should improve our understanding of plant adaptation and speciation across aridity gradients.",
keywords = "Aridity gradient, Cline analysis, Gene flow, Hybridisation, Hybrid zone, Reproductive isolation, Senecio, Speciation",
author = "Abbott, {Richard J.} and Comes, {Hans P} and Goodwin, {Zoe A} and Brennan, {Adrian C}",
year = "2018",
doi = "10.1080/17550874.2018.1496366",
language = "English",
volume = "11",
pages = "267--281",
journal = "Plant Ecology & Diversity",
issn = "1755-0874",
publisher = "Routledge",
number = "3",

}

RIS (suitable for import to EndNote) - Download

TY - JOUR

T1 - Hybridisation and detection of a hybrid zone between mesic and desert ragworts (Senecio) across an aridity gradient in the eastern Mediterranean

AU - Abbott, Richard J.

AU - Comes, Hans P

AU - Goodwin, Zoe A

AU - Brennan, Adrian C

PY - 2018

Y1 - 2018

N2 - Background: Hybrid zones provide excellent opportunities for studying plant adaptation and speciation.Aims: We tested whether two herbaceous species of Senecio, S. vernalis and S. glaucus, hybridise in the eastern Mediterranean region and form a hybrid zone across an aridity gradient in the Jordan Rift Valley.Methods: Allozyme variation surveyed across both species was analysed by the programme STRUCTURE to assign individuals to genetic groups and determine levels of admixture. Populations in the Jordan Rift Valley were subsequently subjected to a cline analysis.Results: STRUCTURE showed that interspecific hybrids were produced at low frequency along the Israeli coastal plain where S. glaucus is represented by ssp. glaucus. In contrast, hybrids were more commonly produced in central populations of the Jordan Rift Valley. Here, the two species form a hybrid zone with S. vernalis occurring in mesic sites to the north and S. glaucus (ssp. coronopifolius) in arid sites to the south. Cline analysis showed that the hybrid zone is centred towards the northern end of the Dead Sea, but the analysis failed to distinguish how it is maintained.Conclusions: Future detailed genetic and ecological analysis of the Senecio hybrid zone should improve our understanding of plant adaptation and speciation across aridity gradients.

AB - Background: Hybrid zones provide excellent opportunities for studying plant adaptation and speciation.Aims: We tested whether two herbaceous species of Senecio, S. vernalis and S. glaucus, hybridise in the eastern Mediterranean region and form a hybrid zone across an aridity gradient in the Jordan Rift Valley.Methods: Allozyme variation surveyed across both species was analysed by the programme STRUCTURE to assign individuals to genetic groups and determine levels of admixture. Populations in the Jordan Rift Valley were subsequently subjected to a cline analysis.Results: STRUCTURE showed that interspecific hybrids were produced at low frequency along the Israeli coastal plain where S. glaucus is represented by ssp. glaucus. In contrast, hybrids were more commonly produced in central populations of the Jordan Rift Valley. Here, the two species form a hybrid zone with S. vernalis occurring in mesic sites to the north and S. glaucus (ssp. coronopifolius) in arid sites to the south. Cline analysis showed that the hybrid zone is centred towards the northern end of the Dead Sea, but the analysis failed to distinguish how it is maintained.Conclusions: Future detailed genetic and ecological analysis of the Senecio hybrid zone should improve our understanding of plant adaptation and speciation across aridity gradients.

KW - Aridity gradient

KW - Cline analysis

KW - Gene flow

KW - Hybridisation

KW - Hybrid zone

KW - Reproductive isolation

KW - Senecio

KW - Speciation

U2 - 10.1080/17550874.2018.1496366

DO - 10.1080/17550874.2018.1496366

M3 - Article

VL - 11

SP - 267

EP - 281

JO - Plant Ecology & Diversity

JF - Plant Ecology & Diversity

SN - 1755-0874

IS - 3

ER -

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