Effects of glaciation and whole genome duplication on the distribution of the Campanula rotundifolia polyploid complex
Premise Of The Study Both intrinsic and extrinsic factors contribute to a species distribution. Among plants, the extrinsic effects of glaciation and intrinsic effects of whole genome duplication are powerful drivers of biogeographical patterns, but the interplay of these factors is poorly understoo...
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crwiley:10.1002/ajb2.1162 2024-09-15T18:00:52+00:00 Effects of glaciation and whole genome duplication on the distribution of the Campanula rotundifolia polyploid complex Sutherland, Brittany L. Galloway, Laura F. 2018 http://dx.doi.org/10.1002/ajb2.1162 https://api.wiley.com/onlinelibrary/tdm/v1/articles/10.1002%2Fajb2.1162 http://onlinelibrary.wiley.com/wol1/doi/10.1002/ajb2.1162/fullpdf en eng Wiley http://onlinelibrary.wiley.com/termsAndConditions#vor American Journal of Botany volume 105, issue 10, page 1760-1770 ISSN 0002-9122 1537-2197 journal-article 2018 crwiley https://doi.org/10.1002/ajb2.1162 2024-08-27T04:26:37Z Premise Of The Study Both intrinsic and extrinsic factors contribute to a species distribution. Among plants, the extrinsic effects of glaciation and intrinsic effects of whole genome duplication are powerful drivers of biogeographical patterns, but the interplay of these factors is poorly understood. Here, we investigate the roles glaciation and whole‐genome duplication have played in the evolution of the widespread polyploid complex Campanula rotundifolia . Methods We assessed the cytotype of 37 populations that spanned the geographic and cytotypic range of the C. rotundifolia complex. We constructed a chloroplast phylogeny for these populations and used RAD‐seq to create nuclear phylogenies and networks for a subset of 23 populations; and estimated divergence times of major clades using Bayesian estimation of substitution rates. Key Results Campanula rotundifolia originated in south‐central Europe and underwent range expansion throughout much of Europe and North America. Multiple genome duplications have occurred in C. rotundifolia —at least two tetraploid and three hexaploid formations. Conclusions Nuclear and chloroplast phylogenies are largely congruent with a history of populations surviving glacial maxima in known Pleistocene refugia in Europe and North America. Divergent European clades are consistent with two disjunct glacial refugia within Europe. North America was colonized by hexaploids derived from Western European lineages. A glacial refugium in Midwestern North America likely facilitated post‐glacial recolonization of North America and limited genetic divergence. These results implicate both glaciation and whole‐genome duplication as contributing factors to the extant biogeography of C. rotundifolia . Article in Journal/Newspaper Campanula rotundifolia Wiley Online Library American Journal of Botany 105 10 1760 1770 |
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language |
English |
description |
Premise Of The Study Both intrinsic and extrinsic factors contribute to a species distribution. Among plants, the extrinsic effects of glaciation and intrinsic effects of whole genome duplication are powerful drivers of biogeographical patterns, but the interplay of these factors is poorly understood. Here, we investigate the roles glaciation and whole‐genome duplication have played in the evolution of the widespread polyploid complex Campanula rotundifolia . Methods We assessed the cytotype of 37 populations that spanned the geographic and cytotypic range of the C. rotundifolia complex. We constructed a chloroplast phylogeny for these populations and used RAD‐seq to create nuclear phylogenies and networks for a subset of 23 populations; and estimated divergence times of major clades using Bayesian estimation of substitution rates. Key Results Campanula rotundifolia originated in south‐central Europe and underwent range expansion throughout much of Europe and North America. Multiple genome duplications have occurred in C. rotundifolia —at least two tetraploid and three hexaploid formations. Conclusions Nuclear and chloroplast phylogenies are largely congruent with a history of populations surviving glacial maxima in known Pleistocene refugia in Europe and North America. Divergent European clades are consistent with two disjunct glacial refugia within Europe. North America was colonized by hexaploids derived from Western European lineages. A glacial refugium in Midwestern North America likely facilitated post‐glacial recolonization of North America and limited genetic divergence. These results implicate both glaciation and whole‐genome duplication as contributing factors to the extant biogeography of C. rotundifolia . |
format |
Article in Journal/Newspaper |
author |
Sutherland, Brittany L. Galloway, Laura F. |
spellingShingle |
Sutherland, Brittany L. Galloway, Laura F. Effects of glaciation and whole genome duplication on the distribution of the Campanula rotundifolia polyploid complex |
author_facet |
Sutherland, Brittany L. Galloway, Laura F. |
author_sort |
Sutherland, Brittany L. |
title |
Effects of glaciation and whole genome duplication on the distribution of the Campanula rotundifolia polyploid complex |
title_short |
Effects of glaciation and whole genome duplication on the distribution of the Campanula rotundifolia polyploid complex |
title_full |
Effects of glaciation and whole genome duplication on the distribution of the Campanula rotundifolia polyploid complex |
title_fullStr |
Effects of glaciation and whole genome duplication on the distribution of the Campanula rotundifolia polyploid complex |
title_full_unstemmed |
Effects of glaciation and whole genome duplication on the distribution of the Campanula rotundifolia polyploid complex |
title_sort |
effects of glaciation and whole genome duplication on the distribution of the campanula rotundifolia polyploid complex |
publisher |
Wiley |
publishDate |
2018 |
url |
http://dx.doi.org/10.1002/ajb2.1162 https://api.wiley.com/onlinelibrary/tdm/v1/articles/10.1002%2Fajb2.1162 http://onlinelibrary.wiley.com/wol1/doi/10.1002/ajb2.1162/fullpdf |
genre |
Campanula rotundifolia |
genre_facet |
Campanula rotundifolia |
op_source |
American Journal of Botany volume 105, issue 10, page 1760-1770 ISSN 0002-9122 1537-2197 |
op_rights |
http://onlinelibrary.wiley.com/termsAndConditions#vor |
op_doi |
https://doi.org/10.1002/ajb2.1162 |
container_title |
American Journal of Botany |
container_volume |
105 |
container_issue |
10 |
container_start_page |
1760 |
op_container_end_page |
1770 |
_version_ |
1810438070532571136 |