Boreotropical migration explains hybridization between geographically distant lineages in the pantropical clade Sideroxyleae (Sapotaceae)

To determine whether the fragmented pantropical distribution of present day Sideroxyleae primarily is the result of long‐distance dispersals or represents the remnants of a once continuous distribution in the northern hemisphere, the boreotropical flora, we used phylogenetic analyses of chloroplast...

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Published in:American Journal of Botany
Main Authors: Smedmark, Jenny E. E., Anderberg, Arne A.
Other Authors: Vetenskapsrådet
Format: Article in Journal/Newspaper
Language:English
Published: Wiley 2007
Subjects:
Online Access:http://dx.doi.org/10.3732/ajb.94.9.1491
https://onlinelibrary.wiley.com/doi/full/10.3732/ajb.94.9.1491
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spelling crwiley:10.3732/ajb.94.9.1491 2024-04-28T08:30:48+00:00 Boreotropical migration explains hybridization between geographically distant lineages in the pantropical clade Sideroxyleae (Sapotaceae) Smedmark, Jenny E. E. Anderberg, Arne A. Vetenskapsrådet 2007 http://dx.doi.org/10.3732/ajb.94.9.1491 https://onlinelibrary.wiley.com/doi/full/10.3732/ajb.94.9.1491 en eng Wiley http://onlinelibrary.wiley.com/termsAndConditions#vor American Journal of Botany volume 94, issue 9, page 1491-1505 ISSN 0002-9122 1537-2197 Plant Science Genetics Ecology, Evolution, Behavior and Systematics journal-article 2007 crwiley https://doi.org/10.3732/ajb.94.9.1491 2024-04-08T06:52:59Z To determine whether the fragmented pantropical distribution of present day Sideroxyleae primarily is the result of long‐distance dispersals or represents the remnants of a once continuous distribution in the northern hemisphere, the boreotropical flora, we used phylogenetic analyses of chloroplast and nuclear ribosomal DNA data, Bayesian molecular dating, and Bayesian estimation of ancestral areas. Incongruence between the two data sets was examined with a nuclear low copy gene phylogeny to discover any occurrences of reticulate evolution. The Pacific clade Nesoluma was shown to have two distinct copies of the nuclear low copy gene AAT , one from an African and one from an American ancestral lineage, indicating that it is of allopolyploid origin. We conclude that Sideroxyleae, including the ancestral lineages of Nesoluma , were part of the boreotropical flora and entered the New World via the north Atlantic land bridge. We also suggest that the distribution of extant species resulted from the cooling climate at the end of the Eocene. Sideroxylon oxyacanthum is shown not to belong in the group, but in Chrysophylloideae. A classification reflecting phylogenetic relationships, as well as new combinations for the species in Nesoluma under Sideroxylon , is presented. Article in Journal/Newspaper North Atlantic Wiley Online Library American Journal of Botany 94 9 1491 1505
institution Open Polar
collection Wiley Online Library
op_collection_id crwiley
language English
topic Plant Science
Genetics
Ecology, Evolution, Behavior and Systematics
spellingShingle Plant Science
Genetics
Ecology, Evolution, Behavior and Systematics
Smedmark, Jenny E. E.
Anderberg, Arne A.
Boreotropical migration explains hybridization between geographically distant lineages in the pantropical clade Sideroxyleae (Sapotaceae)
topic_facet Plant Science
Genetics
Ecology, Evolution, Behavior and Systematics
description To determine whether the fragmented pantropical distribution of present day Sideroxyleae primarily is the result of long‐distance dispersals or represents the remnants of a once continuous distribution in the northern hemisphere, the boreotropical flora, we used phylogenetic analyses of chloroplast and nuclear ribosomal DNA data, Bayesian molecular dating, and Bayesian estimation of ancestral areas. Incongruence between the two data sets was examined with a nuclear low copy gene phylogeny to discover any occurrences of reticulate evolution. The Pacific clade Nesoluma was shown to have two distinct copies of the nuclear low copy gene AAT , one from an African and one from an American ancestral lineage, indicating that it is of allopolyploid origin. We conclude that Sideroxyleae, including the ancestral lineages of Nesoluma , were part of the boreotropical flora and entered the New World via the north Atlantic land bridge. We also suggest that the distribution of extant species resulted from the cooling climate at the end of the Eocene. Sideroxylon oxyacanthum is shown not to belong in the group, but in Chrysophylloideae. A classification reflecting phylogenetic relationships, as well as new combinations for the species in Nesoluma under Sideroxylon , is presented.
author2 Vetenskapsrådet
format Article in Journal/Newspaper
author Smedmark, Jenny E. E.
Anderberg, Arne A.
author_facet Smedmark, Jenny E. E.
Anderberg, Arne A.
author_sort Smedmark, Jenny E. E.
title Boreotropical migration explains hybridization between geographically distant lineages in the pantropical clade Sideroxyleae (Sapotaceae)
title_short Boreotropical migration explains hybridization between geographically distant lineages in the pantropical clade Sideroxyleae (Sapotaceae)
title_full Boreotropical migration explains hybridization between geographically distant lineages in the pantropical clade Sideroxyleae (Sapotaceae)
title_fullStr Boreotropical migration explains hybridization between geographically distant lineages in the pantropical clade Sideroxyleae (Sapotaceae)
title_full_unstemmed Boreotropical migration explains hybridization between geographically distant lineages in the pantropical clade Sideroxyleae (Sapotaceae)
title_sort boreotropical migration explains hybridization between geographically distant lineages in the pantropical clade sideroxyleae (sapotaceae)
publisher Wiley
publishDate 2007
url http://dx.doi.org/10.3732/ajb.94.9.1491
https://onlinelibrary.wiley.com/doi/full/10.3732/ajb.94.9.1491
genre North Atlantic
genre_facet North Atlantic
op_source American Journal of Botany
volume 94, issue 9, page 1491-1505
ISSN 0002-9122 1537-2197
op_rights http://onlinelibrary.wiley.com/termsAndConditions#vor
op_doi https://doi.org/10.3732/ajb.94.9.1491
container_title American Journal of Botany
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container_issue 9
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