Confirmation of the hybrid origin of Eupatorium x truncatum (Asteraceae) using nuclear and plastid markers
Confirmation of the hybrid origin of Eupatorium x truncatum (Asteraceae) using nuclear and plastid markers
Eupatorium ×truncatum (Asteraceae) is distributed throughout the eastern United States and is thought to have originated from interspecific hybridization between E. perfoliatum and E. serotinum. This study confirms the hybrid origin of one E. ×truncatum population in central Indiana through analysis of DNA sequence data from nuclear ITS and corroborates the morphology-based hypothesis that E. perfoliatum and E. serotinum are its progenitors. Moreover, two single-copy nuclear loci showing fixed differences between the parents were in the heterozygous form in all hybrids analyzed, suggesting that these are all F1 hybrids. Plastid psbA-trnH intergenic spacer sequences identify E. serotinum as the maternal progenitor of all sampled hybrids.
381-387
McKain, M.R.
d26281f7-e46a-48b6-b853-3cf7b974afba
Chapman, M.A.
8bac4a92-bfa7-4c3c-af29-9af852ef6383
Ingram, A.L.
7f85a072-3769-4611-9b0b-8b2a563b0e0f
2010
McKain, M.R.
d26281f7-e46a-48b6-b853-3cf7b974afba
Chapman, M.A.
8bac4a92-bfa7-4c3c-af29-9af852ef6383
Ingram, A.L.
7f85a072-3769-4611-9b0b-8b2a563b0e0f
McKain, M.R., Chapman, M.A. and Ingram, A.L.
(2010)
Confirmation of the hybrid origin of Eupatorium x truncatum (Asteraceae) using nuclear and plastid markers.
Castanea, 75 (3), .
(doi:10.2179/09-043.1).
Abstract
Eupatorium ×truncatum (Asteraceae) is distributed throughout the eastern United States and is thought to have originated from interspecific hybridization between E. perfoliatum and E. serotinum. This study confirms the hybrid origin of one E. ×truncatum population in central Indiana through analysis of DNA sequence data from nuclear ITS and corroborates the morphology-based hypothesis that E. perfoliatum and E. serotinum are its progenitors. Moreover, two single-copy nuclear loci showing fixed differences between the parents were in the heterozygous form in all hybrids analyzed, suggesting that these are all F1 hybrids. Plastid psbA-trnH intergenic spacer sequences identify E. serotinum as the maternal progenitor of all sampled hybrids.
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Published date: 2010
Organisations:
Biomedicine
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Local EPrints ID: 352754
URI: http://eprints.soton.ac.uk/id/eprint/352754
ISSN: 0008-7475
PURE UUID: 78fe88c2-7b96-4f1d-adcc-b2dd880d7ddf
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Date deposited: 20 May 2013 14:22
Last modified: 15 Mar 2024 03:46
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Author:
M.R. McKain
Author:
A.L. Ingram
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