Biogeography of the Gondwanan genus Lomatia (Proteaceae): vicariance at continental and intercontinental scales
Abstract Aim We tested whether the divergence of South American and Australian Lomatia was the result of the breakup of Gondwana, and assessed the date of divergence between Tasmania and mainland Australia, and across the Hunter River Valley. Location South America (Chile and Argentina) and eastern...
Published in: | Journal of Biogeography |
---|---|
Main Authors: | , , , |
Other Authors: | |
Format: | Article in Journal/Newspaper |
Language: | English |
Published: |
Wiley
2015
|
Subjects: | |
Online Access: | http://dx.doi.org/10.1111/jbi.12588 https://api.wiley.com/onlinelibrary/tdm/v1/articles/10.1111%2Fjbi.12588 https://onlinelibrary.wiley.com/doi/pdf/10.1111/jbi.12588 |
id |
crwiley:10.1111/jbi.12588 |
---|---|
record_format |
openpolar |
spelling |
crwiley:10.1111/jbi.12588 2024-04-28T07:59:30+00:00 Biogeography of the Gondwanan genus Lomatia (Proteaceae): vicariance at continental and intercontinental scales Milner, Melita L. Weston, Peter H. Rossetto, Maurizio Crisp, Michael D. The Hermon Slade Foundation 2015 http://dx.doi.org/10.1111/jbi.12588 https://api.wiley.com/onlinelibrary/tdm/v1/articles/10.1111%2Fjbi.12588 https://onlinelibrary.wiley.com/doi/pdf/10.1111/jbi.12588 en eng Wiley http://onlinelibrary.wiley.com/termsAndConditions#vor Journal of Biogeography volume 42, issue 12, page 2440-2451 ISSN 0305-0270 1365-2699 Ecology Ecology, Evolution, Behavior and Systematics journal-article 2015 crwiley https://doi.org/10.1111/jbi.12588 2024-04-08T06:49:54Z Abstract Aim We tested whether the divergence of South American and Australian Lomatia was the result of the breakup of Gondwana, and assessed the date of divergence between Tasmania and mainland Australia, and across the Hunter River Valley. Location South America (Chile and Argentina) and eastern Australia (Tasmania, Victoria, New South Wales and Queensland). Methods We sequenced one chloroplast ( psb A –trn H intergenic spacer) and two nuclear ( PHYA and ITS ) markers across all 12 species of Lomatia , five species of Telopea and Embothrium coccineum , and included sequences from GenBank for the rest of the tribe Embothrieae. Species relationships were inferred using Bayesian and maximum likelihood analyses, then divergence times estimated using the random local clock in beast . Results The chronogram is congruent with geological events: SA m ( SA m ( SA m (Tas ( NEQ ld ( SEA us north of the Hunter + SEA us south of the Hunter))))). South American and Australian species of Lomatia diverged between 35 and 64 Ma. Tasmanian species of Lomatia diverged from mainland Australian taxa c . 32 Ma. Mainland Australian species of Lomatia are mostly not corroborated as monophyletic but show a divergence either side of the Hunter River Valley, dated at 17 Ma. Main conclusions The divergence date between South American Lomatia ferruginea and Australian species cannot exclude Gondwanan vicariance; however, divergences within South America occurred prior to separation of South America and Australia from Antarctica. Tasmanian species diverged from mainland Australia in the early Oligocene. Mainland Australian species of Lomatia are not resolved but form two clades representing populations north and south of the Hunter River Valley, confirming the Hunter River Valley as a significant barrier to gene flow for plants. We suggest that drying events that divided northern and southern floras at the Hunter River Valley occurred at the same time as those that divided eastern and western floras. Article in Journal/Newspaper Antarc* Antarctica Wiley Online Library Journal of Biogeography 42 12 2440 2451 |
institution |
Open Polar |
collection |
Wiley Online Library |
op_collection_id |
crwiley |
language |
English |
topic |
Ecology Ecology, Evolution, Behavior and Systematics |
spellingShingle |
Ecology Ecology, Evolution, Behavior and Systematics Milner, Melita L. Weston, Peter H. Rossetto, Maurizio Crisp, Michael D. Biogeography of the Gondwanan genus Lomatia (Proteaceae): vicariance at continental and intercontinental scales |
topic_facet |
Ecology Ecology, Evolution, Behavior and Systematics |
description |
Abstract Aim We tested whether the divergence of South American and Australian Lomatia was the result of the breakup of Gondwana, and assessed the date of divergence between Tasmania and mainland Australia, and across the Hunter River Valley. Location South America (Chile and Argentina) and eastern Australia (Tasmania, Victoria, New South Wales and Queensland). Methods We sequenced one chloroplast ( psb A –trn H intergenic spacer) and two nuclear ( PHYA and ITS ) markers across all 12 species of Lomatia , five species of Telopea and Embothrium coccineum , and included sequences from GenBank for the rest of the tribe Embothrieae. Species relationships were inferred using Bayesian and maximum likelihood analyses, then divergence times estimated using the random local clock in beast . Results The chronogram is congruent with geological events: SA m ( SA m ( SA m (Tas ( NEQ ld ( SEA us north of the Hunter + SEA us south of the Hunter))))). South American and Australian species of Lomatia diverged between 35 and 64 Ma. Tasmanian species of Lomatia diverged from mainland Australian taxa c . 32 Ma. Mainland Australian species of Lomatia are mostly not corroborated as monophyletic but show a divergence either side of the Hunter River Valley, dated at 17 Ma. Main conclusions The divergence date between South American Lomatia ferruginea and Australian species cannot exclude Gondwanan vicariance; however, divergences within South America occurred prior to separation of South America and Australia from Antarctica. Tasmanian species diverged from mainland Australia in the early Oligocene. Mainland Australian species of Lomatia are not resolved but form two clades representing populations north and south of the Hunter River Valley, confirming the Hunter River Valley as a significant barrier to gene flow for plants. We suggest that drying events that divided northern and southern floras at the Hunter River Valley occurred at the same time as those that divided eastern and western floras. |
author2 |
The Hermon Slade Foundation |
format |
Article in Journal/Newspaper |
author |
Milner, Melita L. Weston, Peter H. Rossetto, Maurizio Crisp, Michael D. |
author_facet |
Milner, Melita L. Weston, Peter H. Rossetto, Maurizio Crisp, Michael D. |
author_sort |
Milner, Melita L. |
title |
Biogeography of the Gondwanan genus Lomatia (Proteaceae): vicariance at continental and intercontinental scales |
title_short |
Biogeography of the Gondwanan genus Lomatia (Proteaceae): vicariance at continental and intercontinental scales |
title_full |
Biogeography of the Gondwanan genus Lomatia (Proteaceae): vicariance at continental and intercontinental scales |
title_fullStr |
Biogeography of the Gondwanan genus Lomatia (Proteaceae): vicariance at continental and intercontinental scales |
title_full_unstemmed |
Biogeography of the Gondwanan genus Lomatia (Proteaceae): vicariance at continental and intercontinental scales |
title_sort |
biogeography of the gondwanan genus lomatia (proteaceae): vicariance at continental and intercontinental scales |
publisher |
Wiley |
publishDate |
2015 |
url |
http://dx.doi.org/10.1111/jbi.12588 https://api.wiley.com/onlinelibrary/tdm/v1/articles/10.1111%2Fjbi.12588 https://onlinelibrary.wiley.com/doi/pdf/10.1111/jbi.12588 |
genre |
Antarc* Antarctica |
genre_facet |
Antarc* Antarctica |
op_source |
Journal of Biogeography volume 42, issue 12, page 2440-2451 ISSN 0305-0270 1365-2699 |
op_rights |
http://onlinelibrary.wiley.com/termsAndConditions#vor |
op_doi |
https://doi.org/10.1111/jbi.12588 |
container_title |
Journal of Biogeography |
container_volume |
42 |
container_issue |
12 |
container_start_page |
2440 |
op_container_end_page |
2451 |
_version_ |
1797572213885370368 |