A pre-Miocene Irano-Turanian cradle: Origin and diversification of the species-rich monocot genus Gagea (Liliaceae)
The Irano-Turanian (IT) floristic region is considered an important center of origin for many taxa. However, there is a lack of studies dealing with typical IT genera that also occur in neighboring areas. The species-rich monocot genus Gagea Salisb. shows a center of diversity in IT region and a dis...
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Online Access: | http://hdl.handle.net/11568/994813 https://doi.org/10.1002/ece3.5170 http://onlinelibrary.wiley.com/journal/10.1002/(ISSN)2045-7758 |
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ftunivpisairis:oai:arpi.unipi.it:11568/994813 2024-02-11T10:01:39+01:00 A pre-Miocene Irano-Turanian cradle: Origin and diversification of the species-rich monocot genus Gagea (Liliaceae) Peterson A. Harpke D. Peterson J. Harpke A. Peruzzi L. Peterson, A. Harpke, D. Peterson, J. Harpke, A. Peruzzi, L. 2019 ELETTRONICO http://hdl.handle.net/11568/994813 https://doi.org/10.1002/ece3.5170 http://onlinelibrary.wiley.com/journal/10.1002/(ISSN)2045-7758 eng eng info:eu-repo/semantics/altIdentifier/pmid/31161005 info:eu-repo/semantics/altIdentifier/wos/WOS:000470923500027 volume:9 issue:10 firstpage:5870 lastpage:5890 numberofpages:21 journal:ECOLOGY AND EVOLUTION http://hdl.handle.net/11568/994813 doi:10.1002/ece3.5170 info:eu-repo/semantics/altIdentifier/scopus/2-s2.0-85066260324 http://onlinelibrary.wiley.com/journal/10.1002/(ISSN)2045-7758 ancestral area reconstruction biogeography dated phylogeny Gagea Irano-Turanian region southwestern Asia info:eu-repo/semantics/article 2019 ftunivpisairis https://doi.org/10.1002/ece3.5170 2024-01-17T18:00:39Z The Irano-Turanian (IT) floristic region is considered an important center of origin for many taxa. However, there is a lack of studies dealing with typical IT genera that also occur in neighboring areas. The species-rich monocot genus Gagea Salisb. shows a center of diversity in IT region and a distribution in adjacent regions, therefore representing a good study object to investigate spatial and temporal relationships among IT region and its neighboring areas (East Asia, Euro-Siberia, Himalaya, and Mediterranean). We aimed at (a) testing the origin of the genus and of its major lineages in the IT region, (b) reconstructing divergence times, and (c) reconstructing colonization events. To address these problems, sequences of the ribosomal DNA internal transcribed spacer (ITS) region of 418 individuals and chloroplast intergenic spacers sequences (psbA-trnH, trnL-trnF) of 497 individuals, representing 116 species from all sections of the genus and nearly its entire distribution area were analyzed. Divergence times were estimated under a random molecular clock based on nrITS phylogeny, which was the most complete data set regarding the representation of species and distribution areas. Ancestral distribution ranges were estimated for the nrITS data set as well as for a combined data set, revealing that Gagea most likely originated in southwestern Asia. This genus first diversified there starting in the Early Miocene. In the Middle Miocene, Gagea migrated to the Mediterranean and to East Asia, while migration into Euro-Siberia took place in the Late Miocene. During the Pleistocene, the Arctic was colonized and Gagea serotina, the most widespread species, reached North America. The Mediterranean basin was colonized multiple times from southwestern Asia or Euro-Siberia. Most of the currently existing species originated during the last 3Ma. Article in Journal/Newspaper Arctic Siberia ARPI - Archivio della Ricerca dell'Università di Pisa Arctic Ecology and Evolution 9 10 5870 5890 |
institution |
Open Polar |
collection |
ARPI - Archivio della Ricerca dell'Università di Pisa |
op_collection_id |
ftunivpisairis |
language |
English |
topic |
ancestral area reconstruction biogeography dated phylogeny Gagea Irano-Turanian region southwestern Asia |
spellingShingle |
ancestral area reconstruction biogeography dated phylogeny Gagea Irano-Turanian region southwestern Asia Peterson A. Harpke D. Peterson J. Harpke A. Peruzzi L. A pre-Miocene Irano-Turanian cradle: Origin and diversification of the species-rich monocot genus Gagea (Liliaceae) |
topic_facet |
ancestral area reconstruction biogeography dated phylogeny Gagea Irano-Turanian region southwestern Asia |
description |
The Irano-Turanian (IT) floristic region is considered an important center of origin for many taxa. However, there is a lack of studies dealing with typical IT genera that also occur in neighboring areas. The species-rich monocot genus Gagea Salisb. shows a center of diversity in IT region and a distribution in adjacent regions, therefore representing a good study object to investigate spatial and temporal relationships among IT region and its neighboring areas (East Asia, Euro-Siberia, Himalaya, and Mediterranean). We aimed at (a) testing the origin of the genus and of its major lineages in the IT region, (b) reconstructing divergence times, and (c) reconstructing colonization events. To address these problems, sequences of the ribosomal DNA internal transcribed spacer (ITS) region of 418 individuals and chloroplast intergenic spacers sequences (psbA-trnH, trnL-trnF) of 497 individuals, representing 116 species from all sections of the genus and nearly its entire distribution area were analyzed. Divergence times were estimated under a random molecular clock based on nrITS phylogeny, which was the most complete data set regarding the representation of species and distribution areas. Ancestral distribution ranges were estimated for the nrITS data set as well as for a combined data set, revealing that Gagea most likely originated in southwestern Asia. This genus first diversified there starting in the Early Miocene. In the Middle Miocene, Gagea migrated to the Mediterranean and to East Asia, while migration into Euro-Siberia took place in the Late Miocene. During the Pleistocene, the Arctic was colonized and Gagea serotina, the most widespread species, reached North America. The Mediterranean basin was colonized multiple times from southwestern Asia or Euro-Siberia. Most of the currently existing species originated during the last 3Ma. |
author2 |
Peterson, A. Harpke, D. Peterson, J. Harpke, A. Peruzzi, L. |
format |
Article in Journal/Newspaper |
author |
Peterson A. Harpke D. Peterson J. Harpke A. Peruzzi L. |
author_facet |
Peterson A. Harpke D. Peterson J. Harpke A. Peruzzi L. |
author_sort |
Peterson A. |
title |
A pre-Miocene Irano-Turanian cradle: Origin and diversification of the species-rich monocot genus Gagea (Liliaceae) |
title_short |
A pre-Miocene Irano-Turanian cradle: Origin and diversification of the species-rich monocot genus Gagea (Liliaceae) |
title_full |
A pre-Miocene Irano-Turanian cradle: Origin and diversification of the species-rich monocot genus Gagea (Liliaceae) |
title_fullStr |
A pre-Miocene Irano-Turanian cradle: Origin and diversification of the species-rich monocot genus Gagea (Liliaceae) |
title_full_unstemmed |
A pre-Miocene Irano-Turanian cradle: Origin and diversification of the species-rich monocot genus Gagea (Liliaceae) |
title_sort |
pre-miocene irano-turanian cradle: origin and diversification of the species-rich monocot genus gagea (liliaceae) |
publishDate |
2019 |
url |
http://hdl.handle.net/11568/994813 https://doi.org/10.1002/ece3.5170 http://onlinelibrary.wiley.com/journal/10.1002/(ISSN)2045-7758 |
geographic |
Arctic |
geographic_facet |
Arctic |
genre |
Arctic Siberia |
genre_facet |
Arctic Siberia |
op_relation |
info:eu-repo/semantics/altIdentifier/pmid/31161005 info:eu-repo/semantics/altIdentifier/wos/WOS:000470923500027 volume:9 issue:10 firstpage:5870 lastpage:5890 numberofpages:21 journal:ECOLOGY AND EVOLUTION http://hdl.handle.net/11568/994813 doi:10.1002/ece3.5170 info:eu-repo/semantics/altIdentifier/scopus/2-s2.0-85066260324 http://onlinelibrary.wiley.com/journal/10.1002/(ISSN)2045-7758 |
op_doi |
https://doi.org/10.1002/ece3.5170 |
container_title |
Ecology and Evolution |
container_volume |
9 |
container_issue |
10 |
container_start_page |
5870 |
op_container_end_page |
5890 |
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1790597461325119488 |