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Citation for Study 14655

Citation title: "Is agriculture driving the diversification of the Bemisia tabaci species complex (Hemiptera: Sternorrhyncha: Aleyrodidae)? Dating, diversification and biogeographic evidence revealed.".

Study name: "Is agriculture driving the diversification of the Bemisia tabaci species complex (Hemiptera: Sternorrhyncha: Aleyrodidae)? Dating, diversification and biogeographic evidence revealed.".

This study is part of submission 14655 (Status: Published).

Citation

Boykin L.M. 2013. Is agriculture driving the diversification of the Bemisia tabaci species complex (Hemiptera: Sternorrhyncha: Aleyrodidae)? Dating, diversification and biogeographic evidence revealed. BMC Evolutionary Biology, .

Authors

• Boykin L.M. (submitter) 04372985448

Abstract

Background Humans and insect herbivores are competing for the same food crops and have been for thousands of years. Despite considerable advances in crop pest management, losses due to insects remain considerable. The global homogenisation of agriculture has supported the range expansion of numerous insect pests and has been driven in part by human-assisted dispersal supported through rapid global trade and low-cost air passenger transport. One of these pests, is the whitefly, Bemisia tabaci, a cryptic species complex that contains some of the world?s most damaging pests of agriculture. The complex shows considerable genetic diversity and strong phylogeographic relationships. One consequence of the considerable impact that members of the B. tabaci complex have on agriculture, is the view that human activity, particularly in relation to agricultural practices, such as use of insecticides, have driven the diversification found within the species complex. This has been particularly in the case of two members of the complex, Middle East-Asia Minor 1 (MEAM1) and Mediterranean (MED), which have become globally distributed invasive species. An alternative hypothesis is that diversification is due to paleogeographic and paleoclimatological changes. Results The idea that human activity is driving speciation within the B. tabaci complex has never been tested, but the increased interest in fossil whiteflies and the growth in molecular data have enabled us to apply a relaxed molecular clock and so estimate divergence dates for the major lineages within the B. tabaci species complex. The divergence estimates do not support the view that human activity has been a major driver of diversification. Conclusions Our analysis suggests that the major lineages within the complex arose approximately 60 - 30 mya and the highly invasive MED and MEAM1 split from the rest of the species complex around 12 mya well before the evolution of Homo sapiens and agriculture. Further, the divergence dates coincide with a period of global diversification that occurred broadly across the plant and animal kingdoms and was most likely associated with major climatic and tectonic events. Keywords: whitefly, Aleyrodidae, molecular clock dating, BEAST, insect evolution, fossils

Keywords

whitefly, Aleyrodidae, molecular clock dating, BEAST, insect evolution, fossils

External links

About this resource

• Canonical resource URI: http://purl.org/phylo/treebase/phylows/study/TB2:S14655
• Other versions: Nexus NeXML
• Show BibTeX reference

  		@ARTICLE{TreeBASE2Ref22332,
  	 author = {Laura M.  Boykin},
  	 title = {Is agriculture driving the diversification of the Bemisia tabaci species complex (Hemiptera: Sternorrhyncha: Aleyrodidae)? Dating, diversification and biogeographic evidence revealed.},
  	 year = {2013},
  	 keywords = {whitefly, Aleyrodidae, molecular clock dating, BEAST, insect evolution, fossils},
  	 doi = {},
  	 url = {http://},
  	 pmid = {},
  	 journal = {BMC Evolutionary Biology},
  	 volume = {},
  	 number = {},
  	 pages = {},
  	 abstract = {Background
  Humans and insect herbivores are competing for the same food crops and have been for thousands of years. Despite considerable advances in crop pest management, losses due to insects remain considerable. The global homogenisation of agriculture has supported the range expansion of numerous insect pests and has been driven in part by human-assisted dispersal supported through rapid global trade and low-cost air passenger transport.  One of these pests, is the whitefly, Bemisia tabaci, a cryptic species complex that contains some of the world?s most damaging pests of agriculture. The complex shows considerable genetic diversity and strong phylogeographic relationships.  One consequence of the considerable impact that members of the B. tabaci complex have on agriculture, is the view that human activity, particularly in relation to agricultural practices, such as use of insecticides, have driven the diversification found within the species complex. This has been particularly in the case of two members of the complex, Middle East-Asia Minor 1 (MEAM1) and Mediterranean (MED), which have become globally distributed invasive species. An alternative hypothesis is that diversification is due to paleogeographic and paleoclimatological changes. 
  Results 
  The idea that human activity is driving speciation within the B. tabaci complex has never been tested, but the increased interest in fossil whiteflies and the growth in molecular data have enabled us to apply a relaxed molecular clock and so estimate divergence dates for the major lineages within the B. tabaci species complex.  The divergence estimates do not support the view that human activity has been a major driver of diversification.
  Conclusions
  Our analysis suggests that the major lineages within the complex arose approximately 60 - 30 mya and the highly invasive MED and MEAM1 split from the rest of the species complex around 12 mya well before the evolution of Homo sapiens and agriculture. Further, the divergence dates coincide with a period of global diversification that occurred broadly across the plant and animal kingdoms and was most likely associated with major climatic and tectonic events.
  Keywords:  whitefly, Aleyrodidae, molecular clock dating, BEAST, insect evolution, fossils
  }
  }
  		

• Show RIS reference

  		TY  - JOUR
  ID  - 22332
  AU  - Boykin,Laura M. 
  T1  - Is agriculture driving the diversification of the Bemisia tabaci species complex (Hemiptera: Sternorrhyncha: Aleyrodidae)? Dating, diversification and biogeographic evidence revealed.
  PY  - 2013
  KW  - whitefly
  KW  - Aleyrodidae
  KW  - molecular clock dating
  KW  - BEAST
  KW  - insect evolution
  KW  - fossils
  UR  - http://dx.doi.org/
  N2  - Background
  Humans and insect herbivores are competing for the same food crops and have been for thousands of years. Despite considerable advances in crop pest management, losses due to insects remain considerable. The global homogenisation of agriculture has supported the range expansion of numerous insect pests and has been driven in part by human-assisted dispersal supported through rapid global trade and low-cost air passenger transport.  One of these pests, is the whitefly, Bemisia tabaci, a cryptic species complex that contains some of the world?s most damaging pests of agriculture. The complex shows considerable genetic diversity and strong phylogeographic relationships.  One consequence of the considerable impact that members of the B. tabaci complex have on agriculture, is the view that human activity, particularly in relation to agricultural practices, such as use of insecticides, have driven the diversification found within the species complex. This has been particularly in the case of two members of the complex, Middle East-Asia Minor 1 (MEAM1) and Mediterranean (MED), which have become globally distributed invasive species. An alternative hypothesis is that diversification is due to paleogeographic and paleoclimatological changes. 
  Results 
  The idea that human activity is driving speciation within the B. tabaci complex has never been tested, but the increased interest in fossil whiteflies and the growth in molecular data have enabled us to apply a relaxed molecular clock and so estimate divergence dates for the major lineages within the B. tabaci species complex.  The divergence estimates do not support the view that human activity has been a major driver of diversification.
  Conclusions
  Our analysis suggests that the major lineages within the complex arose approximately 60 - 30 mya and the highly invasive MED and MEAM1 split from the rest of the species complex around 12 mya well before the evolution of Homo sapiens and agriculture. Further, the divergence dates coincide with a period of global diversification that occurred broadly across the plant and animal kingdoms and was most likely associated with major climatic and tectonic events.
  Keywords:  whitefly, Aleyrodidae, molecular clock dating, BEAST, insect evolution, fossils
  
  L3  - 
  JF  - BMC Evolutionary Biology
  VL  - 
  IS  - 
  ER  -