Spatial patterns of genetic diversity among Australian alpine flora communities revealed by comparative phylogenomics
Abstract Aim The alpine region of mainland Australia is one of the world's 187 biodiversity hotspots. Genetic analyses of Australian alpine fauna indicate high levels of endemism on fine spatial scales, unlike Northern Hemisphere alpine systems where shallow genetic differentiation is typically...
Published in: | Journal of Biogeography |
---|---|
Main Authors: | , , , |
Other Authors: | |
Format: | Article in Journal/Newspaper |
Language: | English |
Published: |
Wiley
2017
|
Subjects: | |
Online Access: | http://dx.doi.org/10.1111/jbi.13120 https://api.wiley.com/onlinelibrary/tdm/v1/articles/10.1111%2Fjbi.13120 https://onlinelibrary.wiley.com/doi/pdf/10.1111/jbi.13120 |
id |
crwiley:10.1111/jbi.13120 |
---|---|
record_format |
openpolar |
spelling |
crwiley:10.1111/jbi.13120 2024-09-15T18:12:33+00:00 Spatial patterns of genetic diversity among Australian alpine flora communities revealed by comparative phylogenomics Bell, Nicholas Griffin, Philippa C. Hoffmann, Ary A. Miller, Adam D. The Long Term Ecological Research Network (LTERN) 2017 http://dx.doi.org/10.1111/jbi.13120 https://api.wiley.com/onlinelibrary/tdm/v1/articles/10.1111%2Fjbi.13120 https://onlinelibrary.wiley.com/doi/pdf/10.1111/jbi.13120 en eng Wiley http://onlinelibrary.wiley.com/termsAndConditions#vor Journal of Biogeography volume 45, issue 1, page 177-189 ISSN 0305-0270 1365-2699 journal-article 2017 crwiley https://doi.org/10.1111/jbi.13120 2024-08-20T04:15:04Z Abstract Aim The alpine region of mainland Australia is one of the world's 187 biodiversity hotspots. Genetic analyses of Australian alpine fauna indicate high levels of endemism on fine spatial scales, unlike Northern Hemisphere alpine systems where shallow genetic differentiation is typically observed among populations. These discrepancies have been attributed to differences in elevation and influence from glacial activity, and point to a unique phylogeographic history affecting Australian alpine biodiversity. To test generality of these findings across Australian alpine biota, we assessed patterns of genetic structure across plant species. Location The Australian Alps, Victoria, eastern Australia. Methods We used an economical pooled genotyping‐by‐sequencing ( GBS ) approach to examine patterns of genetic diversity among seven widespread species including shrubs and forbs from 16 mountain summits in the Australian Alpine National Park. Patterns of genetic structure among summit populations for each species were inferred from an average of 2,778 independent SNP loci using Bayesian phylogenomic inference and clustering approaches. Results SNP results were consistent across species in identifying deep evolutionary splits among summit communities from the Northern and Central Victorian Alpine regions. These patterns of genetic structure are also consistent with those previously reported for invertebrate and mammal taxa. However, local genetic structure was less pronounced in the plants, supporting the notion that population connectivity tends to be higher in plant species. Main conclusion There is deep lineage diversification between the North and Central Victorian Alpine regions, reflecting a high level of endemism. These findings differ from those reported for alpine biodiversity from New South Wales and much of the Northern Hemisphere, and support the notion that genetic diversity is typically greatest in areas least affected by historical ice sheet formation. We discuss the implications of our findings in the ... Article in Journal/Newspaper Ice Sheet Wiley Online Library Journal of Biogeography 45 1 177 189 |
institution |
Open Polar |
collection |
Wiley Online Library |
op_collection_id |
crwiley |
language |
English |
description |
Abstract Aim The alpine region of mainland Australia is one of the world's 187 biodiversity hotspots. Genetic analyses of Australian alpine fauna indicate high levels of endemism on fine spatial scales, unlike Northern Hemisphere alpine systems where shallow genetic differentiation is typically observed among populations. These discrepancies have been attributed to differences in elevation and influence from glacial activity, and point to a unique phylogeographic history affecting Australian alpine biodiversity. To test generality of these findings across Australian alpine biota, we assessed patterns of genetic structure across plant species. Location The Australian Alps, Victoria, eastern Australia. Methods We used an economical pooled genotyping‐by‐sequencing ( GBS ) approach to examine patterns of genetic diversity among seven widespread species including shrubs and forbs from 16 mountain summits in the Australian Alpine National Park. Patterns of genetic structure among summit populations for each species were inferred from an average of 2,778 independent SNP loci using Bayesian phylogenomic inference and clustering approaches. Results SNP results were consistent across species in identifying deep evolutionary splits among summit communities from the Northern and Central Victorian Alpine regions. These patterns of genetic structure are also consistent with those previously reported for invertebrate and mammal taxa. However, local genetic structure was less pronounced in the plants, supporting the notion that population connectivity tends to be higher in plant species. Main conclusion There is deep lineage diversification between the North and Central Victorian Alpine regions, reflecting a high level of endemism. These findings differ from those reported for alpine biodiversity from New South Wales and much of the Northern Hemisphere, and support the notion that genetic diversity is typically greatest in areas least affected by historical ice sheet formation. We discuss the implications of our findings in the ... |
author2 |
The Long Term Ecological Research Network (LTERN) |
format |
Article in Journal/Newspaper |
author |
Bell, Nicholas Griffin, Philippa C. Hoffmann, Ary A. Miller, Adam D. |
spellingShingle |
Bell, Nicholas Griffin, Philippa C. Hoffmann, Ary A. Miller, Adam D. Spatial patterns of genetic diversity among Australian alpine flora communities revealed by comparative phylogenomics |
author_facet |
Bell, Nicholas Griffin, Philippa C. Hoffmann, Ary A. Miller, Adam D. |
author_sort |
Bell, Nicholas |
title |
Spatial patterns of genetic diversity among Australian alpine flora communities revealed by comparative phylogenomics |
title_short |
Spatial patterns of genetic diversity among Australian alpine flora communities revealed by comparative phylogenomics |
title_full |
Spatial patterns of genetic diversity among Australian alpine flora communities revealed by comparative phylogenomics |
title_fullStr |
Spatial patterns of genetic diversity among Australian alpine flora communities revealed by comparative phylogenomics |
title_full_unstemmed |
Spatial patterns of genetic diversity among Australian alpine flora communities revealed by comparative phylogenomics |
title_sort |
spatial patterns of genetic diversity among australian alpine flora communities revealed by comparative phylogenomics |
publisher |
Wiley |
publishDate |
2017 |
url |
http://dx.doi.org/10.1111/jbi.13120 https://api.wiley.com/onlinelibrary/tdm/v1/articles/10.1111%2Fjbi.13120 https://onlinelibrary.wiley.com/doi/pdf/10.1111/jbi.13120 |
genre |
Ice Sheet |
genre_facet |
Ice Sheet |
op_source |
Journal of Biogeography volume 45, issue 1, page 177-189 ISSN 0305-0270 1365-2699 |
op_rights |
http://onlinelibrary.wiley.com/termsAndConditions#vor |
op_doi |
https://doi.org/10.1111/jbi.13120 |
container_title |
Journal of Biogeography |
container_volume |
45 |
container_issue |
1 |
container_start_page |
177 |
op_container_end_page |
189 |
_version_ |
1810450135403986944 |