A smaller Macadamia from a more vagile tribe: inference of phylogenetic relationships, divergence times, and diaspore evolution in Macadamia and relatives (tribe Macadamieae; Proteaceae)
Tribe Macadamieae (91 spp., 16 genera; Proteaceae) is widespread across the southern hemisphere on all major fragments of Gondwana except New Zealand and India. Macadamia is cultivated outside its natural range as a “nut” crop (notably in Hawaii, where it is the principal orchard crop). We sampled s...
Published in: | American Journal of Botany |
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crwiley:10.3732/ajb.0700006 2024-09-09T19:07:32+00:00 A smaller Macadamia from a more vagile tribe: inference of phylogenetic relationships, divergence times, and diaspore evolution in Macadamia and relatives (tribe Macadamieae; Proteaceae) Mast, Austin R. Willis, Crystal L. Jones, Eric H. Downs, Katherine M. Weston, Peter H. National Science Foundation Howard Hughes Medical Institute 2008 http://dx.doi.org/10.3732/ajb.0700006 https://api.wiley.com/onlinelibrary/tdm/v1/articles/10.3732%2Fajb.0700006 https://onlinelibrary.wiley.com/doi/pdf/10.3732/ajb.0700006 https://onlinelibrary.wiley.com/doi/full-xml/10.3732/ajb.0700006 http://api.wiley.com/onlinelibrary/chorus/v1/articles/10.3732%2Fajb.0700006 en eng Wiley http://onlinelibrary.wiley.com/termsAndConditions#vor American Journal of Botany volume 95, issue 7, page 843-870 ISSN 0002-9122 1537-2197 journal-article 2008 crwiley https://doi.org/10.3732/ajb.0700006 2024-07-25T04:21:29Z Tribe Macadamieae (91 spp., 16 genera; Proteaceae) is widespread across the southern hemisphere on all major fragments of Gondwana except New Zealand and India. Macadamia is cultivated outside its natural range as a “nut” crop (notably in Hawaii, where it is the principal orchard crop). We sampled seven DNA regions and 53 morphological characters from the tribe to infer its phylogeny and address the common assumption that the distribution of the extant diversity of the tribe arose by the rafting of ancestors on Gondwanan fragments. Macadamia proves to be paraphyletic with respect to the African genus Brabejum , the South American genus Panopsis , and the Australian species Orites megacarpus . We erect two new generic names, Nothorites and Lasjia , to produce monophyly at that rank. The earliest disjunctions in the tribe are inferred to be the result of long‐distance dispersal out of Australia (with one possible exception), rather than vicariance. Evolution of tardy fruit dehiscence is correlated with these dispersals, and the onset of the Antarctic Circumpolar Current (ACC) precedes them. We suggest that the ancestors of extant diversity arrived on their respective continents via the ACC, and we recognize that this is a mechanism precluded, rather than facilitated, by Gondwana's terrestrial continuity. Article in Journal/Newspaper Antarc* Antarctic Wiley Online Library Antarctic New Zealand The Antarctic American Journal of Botany 95 7 843 870 |
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Wiley Online Library |
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crwiley |
language |
English |
description |
Tribe Macadamieae (91 spp., 16 genera; Proteaceae) is widespread across the southern hemisphere on all major fragments of Gondwana except New Zealand and India. Macadamia is cultivated outside its natural range as a “nut” crop (notably in Hawaii, where it is the principal orchard crop). We sampled seven DNA regions and 53 morphological characters from the tribe to infer its phylogeny and address the common assumption that the distribution of the extant diversity of the tribe arose by the rafting of ancestors on Gondwanan fragments. Macadamia proves to be paraphyletic with respect to the African genus Brabejum , the South American genus Panopsis , and the Australian species Orites megacarpus . We erect two new generic names, Nothorites and Lasjia , to produce monophyly at that rank. The earliest disjunctions in the tribe are inferred to be the result of long‐distance dispersal out of Australia (with one possible exception), rather than vicariance. Evolution of tardy fruit dehiscence is correlated with these dispersals, and the onset of the Antarctic Circumpolar Current (ACC) precedes them. We suggest that the ancestors of extant diversity arrived on their respective continents via the ACC, and we recognize that this is a mechanism precluded, rather than facilitated, by Gondwana's terrestrial continuity. |
author2 |
National Science Foundation Howard Hughes Medical Institute |
format |
Article in Journal/Newspaper |
author |
Mast, Austin R. Willis, Crystal L. Jones, Eric H. Downs, Katherine M. Weston, Peter H. |
spellingShingle |
Mast, Austin R. Willis, Crystal L. Jones, Eric H. Downs, Katherine M. Weston, Peter H. A smaller Macadamia from a more vagile tribe: inference of phylogenetic relationships, divergence times, and diaspore evolution in Macadamia and relatives (tribe Macadamieae; Proteaceae) |
author_facet |
Mast, Austin R. Willis, Crystal L. Jones, Eric H. Downs, Katherine M. Weston, Peter H. |
author_sort |
Mast, Austin R. |
title |
A smaller Macadamia from a more vagile tribe: inference of phylogenetic relationships, divergence times, and diaspore evolution in Macadamia and relatives (tribe Macadamieae; Proteaceae) |
title_short |
A smaller Macadamia from a more vagile tribe: inference of phylogenetic relationships, divergence times, and diaspore evolution in Macadamia and relatives (tribe Macadamieae; Proteaceae) |
title_full |
A smaller Macadamia from a more vagile tribe: inference of phylogenetic relationships, divergence times, and diaspore evolution in Macadamia and relatives (tribe Macadamieae; Proteaceae) |
title_fullStr |
A smaller Macadamia from a more vagile tribe: inference of phylogenetic relationships, divergence times, and diaspore evolution in Macadamia and relatives (tribe Macadamieae; Proteaceae) |
title_full_unstemmed |
A smaller Macadamia from a more vagile tribe: inference of phylogenetic relationships, divergence times, and diaspore evolution in Macadamia and relatives (tribe Macadamieae; Proteaceae) |
title_sort |
smaller macadamia from a more vagile tribe: inference of phylogenetic relationships, divergence times, and diaspore evolution in macadamia and relatives (tribe macadamieae; proteaceae) |
publisher |
Wiley |
publishDate |
2008 |
url |
http://dx.doi.org/10.3732/ajb.0700006 https://api.wiley.com/onlinelibrary/tdm/v1/articles/10.3732%2Fajb.0700006 https://onlinelibrary.wiley.com/doi/pdf/10.3732/ajb.0700006 https://onlinelibrary.wiley.com/doi/full-xml/10.3732/ajb.0700006 http://api.wiley.com/onlinelibrary/chorus/v1/articles/10.3732%2Fajb.0700006 |
geographic |
Antarctic New Zealand The Antarctic |
geographic_facet |
Antarctic New Zealand The Antarctic |
genre |
Antarc* Antarctic |
genre_facet |
Antarc* Antarctic |
op_source |
American Journal of Botany volume 95, issue 7, page 843-870 ISSN 0002-9122 1537-2197 |
op_rights |
http://onlinelibrary.wiley.com/termsAndConditions#vor |
op_doi |
https://doi.org/10.3732/ajb.0700006 |
container_title |
American Journal of Botany |
container_volume |
95 |
container_issue |
7 |
container_start_page |
843 |
op_container_end_page |
870 |
_version_ |
1809821602209071104 |