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Publication Details
AFRICAN RESEARCH NEXUS
SHINING A SPOTLIGHT ON AFRICAN RESEARCH
agricultural and biological sciences
The genetic ghost of an invasion past: Colonization and extinction revealed by historical hybridization in Senecio
Molecular Ecology, Volume 21, No. 2, Year 2012
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Description
Hybridization is an important evolutionary factor in the diversification of many plant and animal species. Of particular interest is that historical hybridization resulting in the origin of new species or introgressants has occurred between species now geographically separated by great distances. Here, we report that Senecio massaicus, a tetraploid species native to Morocco and the Canary Islands, contains genetic material of two distinct, geographically separated lineages: a Mediterranean lineage and a mainly southern African lineage. A time-calibrated internal transcribed spacer phylogeny indicates that the hybridization event took place up to 6.18 Ma. Because the southern African lineage has never been recorded from Morocco or the Canary Islands, we hypothesize that it reached this area in the distant past, but never became permanently established. Interestingly, the southern African lineage includes S. inaequidens, a highly invasive species that has recently become widespread throughout Europe and was introduced at the end of the 19th century as a 'wool alien'. Our results suggest that this more recent invasion of Europe by S. inaequidens represents the second arrival of this lineage into the region. © 2011 Blackwell Publishing Ltd.
Authors & Co-Authors
Pelser, Pieter B.
New Zealand, Christchurch
University of Canterbury
Abbott, RICHARD J.
United Kingdom, St Andrews
University of st Andrews
Comes, Hans P.
Austria, Salzburg
Universität Salzburg
Milton, Joseph J.
United Kingdom, St Andrews
University of st Andrews
Mãller, Michael
United Kingdom, Edinburgh
Royal Botanic Garden Edinburgh
Looseley, Mark E.
United Kingdom, Aberdeen
The James Hutton Institute
Cron, Glynis Valerie
South Africa, Johannesburg
University of the Witwatersrand
Barcelona, Julie F.
New Zealand, Christchurch
University of Canterbury
Kennedy, Aaron H.
United States, Beltsville
Usda Ars Beltsville Agricultural Research Center
Watson, Linda E.
United States, Stillwater
Oklahoma State University
Barone, Rubén
Spain, Santa Cruz de Tenerife
Museo de Ciencias Naturales
Hernãndez, Fabiãn
Unknown Affiliation
Kadereit, Joachim W.
Germany, Mainz
Johannes Gutenberg-universität Mainz
Statistics
Citations: 38
Authors: 13
Affiliations: 10
Identifiers
Doi:
10.1111/j.1365-294X.2011.05399.x
ISSN:
09621083
e-ISSN:
1365294X
Research Areas
Genetics And Genomics
Study Locations
Morocco