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Identifying Sex of Neonate Turtles with Temperature-dependent Sex Determination via Small Blood Samples

Temperature-dependent sex determination, present in most turtle species, is a mechanism that uses temperature to direct the sex of the embryo. The rapid increase of global temperatures highlights the need for a clear assessment of how sex ratios of organisms with TSD are affected. In turtles with TSD, quantifying primary sex ratios is challenging because they lack external dimorphism and heteromorphic sex chromosomes. Here we describe a new technique used to identify sex in neonate turtles of two TSD species, a freshwater turtle (Trachemys scripta) and a marine turtle (Caretta caretta) via analysis of small blood samples. Leer más.

https://media.springernature.com/lw685/springer-static/image/art%3A10.1038%2Fs41598-020-61984-2/MediaObjects/41598_2020_61984_Fig1_HTML.png?as=webp

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