Effect of temperature and osmolarity on development


Andreu Sanz, David 


Temperature and osmolarity affect the development of animals in the wild. In the past, it has been claimed that embryonic development in zebrafish scales linearly within a certain temperature range. However, previous studies on the effect of temperature on the underlying molecular mechanisms of development in different contexts have shown that not all processes are affected equally. Thus, it is not possible to explain this linear escalation from the molecular point of view. In this final grade work, the morphological analysis of epibolia in zebrafish embryos at different temperatures has revealed that the effect of temperature on development speed is different at each stage. In a parallel study on the role of ambient salt concentration, epibolia appears to be unaffected by changes in the osmolarity of the medium. Taken together, these findings suggest that the differential effects of temperature as a function of the developmental stage are compensated and therefore show an apparent linear escalation over longer periods of time.



Trivedi, Vikas 
Semino Margrett, Carlos E. 


IQS SE - Undergraduate Program in Biotechnology