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Citation for Study 18455

Citation title: "Discovery of African roots for the Mesoamerican Chiapas catfish, Lacantunia enigmatica, requires an ancient intercontinental passage".

Study name: "Discovery of African roots for the Mesoamerican Chiapas catfish, Lacantunia enigmatica, requires an ancient intercontinental passage".

This study is part of submission 18455 (Status: Published).

Citation

Lundberg J.G., Sullivan J., Rodiles-hern?ndez R., & Hendrickson D. 2007. Discovery of African roots for the Mesoamerican Chiapas catfish, Lacantunia enigmatica, requires an ancient intercontinental passage. Proceedings of the Academy of Natural Sciences of Philadelphia, 156: 39?53.

Authors

• Lundberg J.G. 215 405-5069
• Sullivan J.
• Rodiles-hern?ndez R.
• Hendrickson D.

Abstract

Mesoamerica is famous for its complex biota assembled from diverse sources. The recent discovery of a highly distinct freshwater catfish, Lacantunia enigmatica (Lacantuniidae), in Chiapas, México, added an unresolved taxon to this biogeographic puzzle. Morphology has not resolved the relationships of Lacantunia among the >3000 species of Siluriformes. We added Lacantunia to an expanding phylogenetic study of family-level taxa of living catfishes using >3.6 kilobases of nuclear DNA. We find that Lacantunia is derived from within a multi?family clade of African freshwater catfishes. Without living or fossil intermediates marking a wider lacantuniid distribution, this is an extraordinary case of biogeographic disjunction. Continental clades distributed in the New and Old World tropics are often explained by vicariance of Gondwanan ancestors of deep Mesozoic age. However, our fossil-calibrated, relaxed-clock molecular analyses estimate lacantuniid divergence between 75 to 94 mya, after separation of Africa and South America. During Late Cretaceous and early Tertiary, warm conditions and North Atlantic and Beringian land bridges provided migration routes for numerous warm-adapted taxa between the Old World and North America. In mid-Eocene, freshening of warm surface waters of the Arctic and adjacent oceans may have facilitated the intercontinental dispersion of non-marine organisms. These northern pathways are novel predictive hypotheses for explaining disjunct distributions of tropical freshwater fishes such as the relictually endemic Lacantunia and its African sister clade.

Keywords

Siluriformes, biogoegraphy, vicariance, dispersal, phylogenetics

External links

• DOI: 10.1635/0097-3157(2007)156[39:DOARFT]2.0.CO;2
• Other URL: http://www.jstor.org/stable/27667759

About this resource

• Canonical resource URI: http://purl.org/phylo/treebase/phylows/study/TB2:S18455
• Other versions: Nexus NeXML
• Show BibTeX reference

  		@ARTICLE{TreeBASE2Ref25251,
  	 author = {John G Lundberg and John P.  Sullivan and Roc?o  Rodiles-Hern?ndez and Dean A.  Hendrickson},
  	 title = {Discovery of African roots for the Mesoamerican Chiapas catfish, Lacantunia enigmatica, requires an ancient intercontinental passage},
  	 year = {2007},
  	 keywords = {Siluriformes, biogoegraphy, vicariance, dispersal, phylogenetics},
  	 doi = {10.1635/0097-3157(2007)156[39:DOARFT]2.0.CO;2},
  	 url = {http://www.jstor.org/stable/27667759},
  	 pmid = {},
  	 journal = {Proceedings of the Academy of Natural Sciences of Philadelphia},
  	 volume = {156},
  	 number = {},
  	 pages = {39?53},
  	 abstract = {Mesoamerica is famous for its complex biota assembled from diverse sources. The recent discovery of a highly distinct freshwater catfish, Lacantunia enigmatica (Lacantuniidae), in Chiapas, México, added an unresolved taxon to this biogeographic puzzle. Morphology has not resolved the relationships of Lacantunia among the >3000 species of Siluriformes. We added Lacantunia to an expanding phylogenetic study of family-level taxa of living catfishes using >3.6 kilobases of nuclear DNA. We find that Lacantunia is derived from within a multi?family clade of African freshwater catfishes. Without living or fossil intermediates marking a wider lacantuniid distribution, this is an extraordinary case of biogeographic disjunction. Continental clades distributed in the New and Old World tropics are often explained by vicariance of Gondwanan ancestors of deep Mesozoic age. However, our fossil-calibrated, relaxed-clock molecular analyses estimate lacantuniid divergence between 75 to 94 mya, after separation of Africa and South America. During Late Cretaceous and early Tertiary, warm conditions and North Atlantic and Beringian land bridges provided migration routes for numerous warm-adapted taxa between the Old World and North America. In mid-Eocene, freshening of warm surface waters of the Arctic and adjacent oceans may have facilitated the intercontinental dispersion of non-marine organisms. These northern pathways are novel predictive hypotheses for explaining disjunct distributions of tropical freshwater fishes such as the relictually endemic Lacantunia and its African sister clade.}
  }
  		

• Show RIS reference

  		TY  - JOUR
  ID  - 25251
  AU  - Lundberg,John G
  AU  - Sullivan,John P. 
  AU  - Rodiles-Hern?ndez,Roc?o 
  AU  - Hendrickson,Dean A. 
  T1  - Discovery of African roots for the Mesoamerican Chiapas catfish, Lacantunia enigmatica, requires an ancient intercontinental passage
  PY  - 2007
  KW  - Siluriformes
  KW  - biogoegraphy
  KW  - vicariance
  KW  - dispersal
  KW  - phylogenetics
  UR  - http://www.jstor.org/stable/27667759
  N2  - Mesoamerica is famous for its complex biota assembled from diverse sources. The recent discovery of a highly distinct freshwater catfish, Lacantunia enigmatica (Lacantuniidae), in Chiapas, México, added an unresolved taxon to this biogeographic puzzle. Morphology has not resolved the relationships of Lacantunia among the >3000 species of Siluriformes. We added Lacantunia to an expanding phylogenetic study of family-level taxa of living catfishes using >3.6 kilobases of nuclear DNA. We find that Lacantunia is derived from within a multi?family clade of African freshwater catfishes. Without living or fossil intermediates marking a wider lacantuniid distribution, this is an extraordinary case of biogeographic disjunction. Continental clades distributed in the New and Old World tropics are often explained by vicariance of Gondwanan ancestors of deep Mesozoic age. However, our fossil-calibrated, relaxed-clock molecular analyses estimate lacantuniid divergence between 75 to 94 mya, after separation of Africa and South America. During Late Cretaceous and early Tertiary, warm conditions and North Atlantic and Beringian land bridges provided migration routes for numerous warm-adapted taxa between the Old World and North America. In mid-Eocene, freshening of warm surface waters of the Arctic and adjacent oceans may have facilitated the intercontinental dispersion of non-marine organisms. These northern pathways are novel predictive hypotheses for explaining disjunct distributions of tropical freshwater fishes such as the relictually endemic Lacantunia and its African sister clade.
  L3  - 10.1635/0097-3157(2007)156[39:DOARFT]2.0.CO;2
  JF  - Proceedings of the Academy of Natural Sciences of Philadelphia
  VL  - 156
  IS  - 
  ER  -