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Evolution of Sex Chromosomes in Turtles Edwards, Scott Harvard University, Cambridge, MA, Usa

Evolution of Sex Chromosomes in Turtles Edwards, Scott Harvard University, Cambridge, MA, Usa

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Intercourse depends upon hereditary constitution (GSD) in many pets, such as for instance because of the intercourse chromosome pairs XX or XY in people, or ZZ or ZW in wild birds. In a few other pets, but, sex is dependent upon ecological temperature (TSD). Among turtle species, nonetheless, types of both kinds of intercourse dedication can be located. It continues to be confusing, nonetheless, exactly just exactly how and just why sex that is different mechanisms exist. This collaborative task will assist fill this space by comparing the chromosomes and sex-related genes of turtles making use of XX/XY, ZZ/ZW, or TSD mechanisms for intercourse dedication. Especially, this research will test whether (1) all intercourse chromosomes in turtles are derived from a standard ancestral couple of non-sex chromosomes (or “autosomes”), and whether (2) the molecular evolution of genes located on turtle sex chromosomes varies from compared to exactly the same genes in TSD turtles, by which there are not any intercourse chromosomes- for example., whether or not the sequences of genes found on intercourse chromosomes change differently over evolutionary time than perform some sequences of the identical genes when they’re situated on autosomes.