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Transcriptome Analyses Provide Insights into the Auditory Function in Trachemys scripta elegans

Auditory function is an important sensory ability that contributes to the survival and reproduction of vertebrates. Studies have shown that turtles can hear and that sex-related differences exist in the auditory function of Trachemys scripta elegans. However, the associated gene expression characteristics are unknown. Therefore, we performed comparative transcriptomics to identify hub genes related to hearing organs involved in development and signal transduction. Leer más.

https://www.mdpi.com/animals/animals-12-02410/article_deploy/html/images/animals-12-02410-g001-550.jpg

Leaving no stone unturned: three additional new species of Atractus ground snakes (Serpentes, Colubridae) from Ecuador discovered using a biogeographical approach

The genus Atractus includes 146 species of cryptozoic snakes occurring from Panama to northeastern Argentina. Here, a molecular phylogeny of this genus is presented, which encompasses 29% (= 42; six are included here for the first time) of the species currently recognized. Morphological and phylogenetic support is found for three new species of ground snakes, which are described here based on their unique combination of molecular, meristic, and color pattern characteristics. Leer más.

https://binary.pensoft.net/fig/744140/big

Las ranas negras de Chernóbil nos muestran la evolución en tiempo real

La melanina es responsable de la coloración oscura en muchos organismos. Este compuesto puede reducir los efectos negativos de la radiación ultravioleta. También se ha demostrado su papel protector frente a la radiación ionizante en hongos. La melanina absorbe y disipa parte de la energía de las ondas radiactivas. Además, puede captar y reducir el número de radicales libres que generan. Estas acciones reducen la probabilidad de sufrir daños celulares que disminuyan la supervivencia de los individuos. Leer más.

https://images.theconversation.com/files/485081/original/file-20220916-20-4y10mj.png?ixlib=rb-1.1.0&rect=0%2C102%2C3790%2C1445&q=45&auto=format&w=754&fit=clip