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Citation for Study 13859

Citation title: "Contemporaneous and recent radiations of the world?s major succulent plant lineages.".

Study name: "Contemporaneous and recent radiations of the world?s major succulent plant lineages.".

This study is part of submission 13859 (Status: Published).

Citation

Arakaki M., Christin P., Nyffeler R., Lendel A., Eggli U., Ogburn R., Spriggs E., Moore M.J., & Edwards E.J. 2011. Contemporaneous and recent radiations of the world?s major succulent plant lineages. PNAS, 108(20): 8379-8384.

Authors

• Arakaki M.
• Christin P.
• Nyffeler R.
• Lendel A.
• Eggli U.
• Ogburn R.
• Spriggs E.
• Moore M.J.
• Edwards E.J.

Abstract

The cacti are one of the most celebrated radiations of succulent plants. There has been much speculation about their age, but progress in dating cactus origins has been hindered by the lack of fossil data for cacti or their close relatives. Using a hybrid phylogenomic approach, we estimated that the cactus lineage diverged from its closest relatives ≈35 million years ago (Ma). However, major diversification events in cacti were more recent, with most species-rich clades originating in the late Miocene, ≈10?5 Ma. Diversification rates of several cactus lineages rival other estimates of extremely rapid speciation in plants. Major cactus radiations were contemporaneous with those of South African ice plants and North American agaves, revealing a simultaneous diversification of several of the world's major succulent plant lineages across multiple continents. This short geological time period also harbored the majority of origins of C4 photosynthesis and the global rise of C4 grasslands. A global expansion of arid environments during this time could have provided new ecological opportunity for both succulent and C4 plant syndromes. Alternatively, recent work has identified a substantial decline in atmospheric CO2 ≈15?8 Ma, which would have strongly favored C4 evolution and expansion of C4-dominated grasslands. Lowered atmospheric CO2 would also substantially exacerbate plant water stress in marginally arid environments, providing preadapted succulent plants with a sharp advantage in a broader set of ecological conditions and promoting their rapid diversification across the landscape.

Keywords

climate change, paleobotany, CAM photosynthesis

External links

• DOI: 10.1073/pnas.1100628108

About this resource

• Canonical resource URI: http://purl.org/phylo/treebase/phylows/study/TB2:S13859
• Other versions: Nexus NeXML
• Show BibTeX reference

  		@ARTICLE{TreeBASE2Ref21706,
  	 author = {Monica  Arakaki and Pascal-Antoine  Christin and Reto  Nyffeler and Anita  Lendel and Urs  Eggli and R. Matthew  Ogburn and Elizabeth  Spriggs and Michael J. Moore and Erika J. Edwards},
  	 title = {Contemporaneous and recent radiations of the world?s major succulent plant lineages.},
  	 year = {2011},
  	 keywords = {climate change, paleobotany, CAM photosynthesis},
  	 doi = {10.1073/pnas.1100628108},
  	 url = {http://},
  	 pmid = {},
  	 journal = {PNAS},
  	 volume = {108},
  	 number = {20},
  	 pages = {8379--8384},
  	 abstract = {The cacti are one of the most celebrated radiations of succulent plants. There has been much speculation about their age, but progress in dating cactus origins has been hindered by the lack of fossil data for cacti or their close relatives. Using a hybrid phylogenomic approach, we estimated that the cactus lineage diverged from its closest relatives ≈35 million years ago (Ma). However, major diversification events in cacti were more recent, with most species-rich clades originating in the late Miocene, ≈10?5 Ma. Diversification rates of several cactus lineages rival other estimates of extremely rapid speciation in plants. Major cactus radiations were contemporaneous with those of South African ice plants and North American agaves, revealing a simultaneous diversification of several of the world's major succulent plant lineages across multiple continents. This short geological time period also harbored the majority of origins of C4 photosynthesis and the global rise of C4 grasslands. A global expansion of arid environments during this time could have provided new ecological opportunity for both succulent and C4 plant syndromes. Alternatively, recent work has identified a substantial decline in atmospheric CO2 ≈15?8 Ma, which would have strongly favored C4 evolution and expansion of C4-dominated grasslands. Lowered atmospheric CO2 would also substantially exacerbate plant water stress in marginally arid environments, providing preadapted succulent plants with a sharp advantage in a broader set of ecological conditions and promoting their rapid diversification across the landscape.}
  }
  		

• Show RIS reference

  		TY  - JOUR
  ID  - 21706
  AU  - Arakaki,Monica 
  AU  - Christin,Pascal-Antoine 
  AU  - Nyffeler,Reto 
  AU  - Lendel,Anita 
  AU  - Eggli,Urs 
  AU  - Ogburn,R. Matthew 
  AU  - Spriggs,Elizabeth 
  AU  - Moore,Michael J.
  AU  - Edwards,Erika J.
  T1  - Contemporaneous and recent radiations of the world?s major succulent plant lineages.
  PY  - 2011
  KW  - climate change
  KW  - paleobotany
  KW  - CAM photosynthesis
  UR  - http://dx.doi.org/10.1073/pnas.1100628108
  N2  - The cacti are one of the most celebrated radiations of succulent plants. There has been much speculation about their age, but progress in dating cactus origins has been hindered by the lack of fossil data for cacti or their close relatives. Using a hybrid phylogenomic approach, we estimated that the cactus lineage diverged from its closest relatives ≈35 million years ago (Ma). However, major diversification events in cacti were more recent, with most species-rich clades originating in the late Miocene, ≈10?5 Ma. Diversification rates of several cactus lineages rival other estimates of extremely rapid speciation in plants. Major cactus radiations were contemporaneous with those of South African ice plants and North American agaves, revealing a simultaneous diversification of several of the world's major succulent plant lineages across multiple continents. This short geological time period also harbored the majority of origins of C4 photosynthesis and the global rise of C4 grasslands. A global expansion of arid environments during this time could have provided new ecological opportunity for both succulent and C4 plant syndromes. Alternatively, recent work has identified a substantial decline in atmospheric CO2 ≈15?8 Ma, which would have strongly favored C4 evolution and expansion of C4-dominated grasslands. Lowered atmospheric CO2 would also substantially exacerbate plant water stress in marginally arid environments, providing preadapted succulent plants with a sharp advantage in a broader set of ecological conditions and promoting their rapid diversification across the landscape.
  L3  - 10.1073/pnas.1100628108
  JF  - PNAS
  VL  - 108
  IS  - 20
  SP  - 8379
  EP  - 8384
  ER  -