Ecology, Evolution and Organismal Biology Publications Ecology, Evolution and Organismal Biology 2004 Phylogenetics: Which was first, TSD or GSD? Fredric J. Janzen Iowa State University, fjanzen@iastate.edu J. G. Krenz Follow this and additional works at: http://lib.dr.iastate.edu/eeob_ag_pubs Part of the Evolution Commons, and the Population Biology Commons The complete bibliographic information for this item can be found at http://lib.dr.iastate.edu/ eeob_ag_pubs/167. For information on how to cite this item, please visit http://lib.dr.iastate.edu/ howtocite.html. This Book Chapter is brought to you for free and open access by the Ecology, Evolution and Organismal Biology at Iowa State University Digital Repository. It has been accepted for inclusion in Ecology, Evolution and Organismal Biology Publications by an authorized administrator of Iowa State University Digital Repository. For more information, please contact digirep@iastate.edu.
Phylogenetics: Which was first, TSD or GSD? Abstract The basic challenge of evolutionary biology is to explain variation or the lack thereof, be it phenotypic, genetic, phy logenetic, spatial, temporal, and so on. To illustrate, one gross generalization is that phenotypic traits we think of as being very important to organisms tend to be highly conserved (e.g.. binocular vision in vertebrates). probably because the genomic and developmental underpinnings are essentially fixed. Thus, one striking feature about sex-determining mechanisms (SDMs), a fundamental aspect of sexual or ganisms, is the enormous variety (Bull1983). Disciplines Ecology and Evolutionary Biology Evolution Population Biology Comments This is a chapter from Temperature dependent sex determination in vertebrates (2004): 121. Posted with permission. This book chapter is available at Iowa State University Digital Repository: http://lib.dr.iastate.edu/eeob_ag_pubs/167
Janzen, F. J. & J. G. Krenz (2004) Phylogenetics: Which was first, TSD or GSD? Pp. 121 130 in Temperature dependent sex determination in vertebrates (N. Valenzuela & V. A. Lance, eds) Smithsonian Institution
GSD vs. TSD unordered GSD TSD polymorphic equivocal FISH AMPHIBIA MAMMALIA Podocnemis Pelomedusa Pelusios Emydura Chelodina Acanthochelys Carettochelys Pelodiscus Apalone Staurotypus Claudius Sternotherus Kinosternon Dermatemys Chelydra Dermochelys Chelonia Caretta Calemys Terrapene Clemmys Emys Deirochelys Trachemys Malaclemys Chrysemys Pseudemys Siebenrockiella Chinemys Kachuga Mauremys Melanochelys Rhinoclemmys Gopherus Testudo SPHENODONTIA Coleonyx Hemitheconyx Eublepharis Lialis Gekko gecko Gekko japonicus Gehyra Phelsuma Phyllodactylus Tarentola Gonatodes Scincella Eumeces Eremias Podarcis pityusensis Podarcis erhardii Lacerta vivipara Gallotia Bipes Gymnophthalmus Cnemidophorus Ameiva Chamaeleo Agama Pogona Basiliscus Sceloporus Anolis Crotaphytus Dipsosaurus Tropidurus Varanus salvator Varanus acanthurus SERPENTES AVES CROCODILIA
Type of GSD vs. TSD unordered H XY ZW TSD polymorphic equivocal FISH AMPHIBIA MAMMALIA Podocnemis Pelomedusa Pelusios Emydura Chelodina Acanthochelys Carettochelys Pelodiscus Apalone Staurotypus Claudius Sternotherus Kinosternon Dermatemys Chelydra Dermochelys Chelonia Caretta Calemys Terrapene Clemmys Emys Deirochelys Trachemys Malaclemys Chrysemys Pseudemys Siebenrockiella Chinemys Kachuga Mauremys Melanochelys Rhinoclemmys Gopherus Testudo SPHENODONTIA Coleonyx Hemitheconyx Eublepharis Lialis Gekko gecko Gekko japonicus Gehyra Phelsuma Phyllodactylus Tarentola Gonatodes Scincella Eumeces Eremias Podarcis pityusensis Podarcis erhardii Lacerta vivipara Gallotia Bipes Gymnophthalmus Cnemidophorus Ameiva Chamaeleo Agama Pogona Basiliscus Sceloporus Anolis Crotaphytus Dipsosaurus Tropidurus Varanus salvator Varanus acanthurus SERPENTES AVES CROCODILIA