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Sex Determination: Why So Many Ways of Doing It?
Sex is universal amongst most eukaryotes, yet a remarkable diversity of sex determining mechanisms exists. We review our current understanding of how and why sex determination evolves in animals andExpand
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The western painted turtle genome, a model for the evolution of extreme physiological adaptations in a slowly evolving lineage
BackgroundWe describe the genome of the western painted turtle, Chrysemys picta bellii, one of the most widespread, abundant, and well-studied turtles. We place the genome into a comparativeExpand
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Multiple paternity in side‐neck turtles Podocnemis expansa: evidence from microsatellite DNA data
Multiple paternity was found in two clutches of Podocnemis expansa using eight microsatellite loci. When loci were analysed separately a minimum of two males was estimated for nest N23, and three forExpand
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Pattern Does Not Equal Process: Exactly When Is Sex Environmentally Determined?
Of prime importance in evolutionary biology are the description of pattern and explanations of process. Frequently, however, multiple processes can explain a given pattern. Such cases requireExpand
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Are all sex chromosomes created equal?
Three principal types of chromosomal sex determination are found in nature: male heterogamety (XY systems, as in mammals), female heterogamety (ZW systems, as in birds), and haploid phaseExpand
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CONSTANT, SHIFT, AND NATURAL TEMPERATURE EFFECTS ON SEX DETERMINATION IN PODOCNEMIS EXPANSA TURTLES
Environmental sex determination may yield biased sex ratios, as is the case in many reptilian species with temperature-dependent sex determination (TSD). Determin- ing TSD thermal ecology isExpand
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Temperature-dependent sex determination in vertebrates
Edited by the world's foremost authorities on the subject, with essays by leading scholars in the field, this work shows how the sex of reptiles and many fish is determined not by the chromosomesExpand
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CHROMOSOME NUMBER AND SEX DETERMINATION COEVOLVE IN TURTLES
Although much progress has been achieved in understanding the genetic basis of adaptation, the drivers of genome evolution remain obscure. For instance, extensive variation among reptilian genomesExpand
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Estimating population structure under nonequilibrium conditions in a conservation context: continent‐wide population genetics of the giant Amazon river turtle, Podocnemis expansa (Chelonia;
Giant Amazon river turtles, Podocnemis expansa, are indigenous to the Amazon, Orinoco, and Essequibo River basins, and are distributed across nearly the entire width of the South American continent.Expand
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Sexual Development and the Evolution of Sex Determination
The evolution of sex had profound consequences for life on earth as it brought about the origin of males and females. Yet understanding the amazing variety of mechanisms employed by organisms toExpand
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