From Embryos to Comb Rows: Illuminating the Mysteries of Ctenophore Evolution
Marta Truchado- Garcia, Project Scientist
Molecular and Cell Biology
Applications for Spring 2025 are closed for this project.
Ctenophores (from Greek, meaning "comb-bearing") are gelatinous marine invertebrates that might be mistaken for medusae. However, they can be easily identified by their eight longitudinal 'comb rows' of ciliary bundles, which are used for locomotion. Like cnidarians, ctenophores possess multiple nerve nets; however, they exhibit several unique features that clearly distinguish them as a separate group. Ctenophores have also been central to discussions about the origin of animals, with current research suggesting that they may represent the sister group at the base of the animal tree.
We just got to develop the infrastructure to maintain the animals in the lab, and we are trying to keep the animals in optimal conditions to complete the life cycle. We need students to accomplish this goal, so we can achieve the next ones: Experiments! We would need to work towards embryo production, by implementing the protocols to induce regular spawning. Manipulations of the light-dark cycle, along with other environmental cues, will be applied to encourage embryo production.
Application and significance: The embryos produced will be used to study the development and patterning of these ancient animals, providing insights into the evolutionary processes that occurred over 600 million years ago.
Role: The students are expected to cover the objectives covered above, and become familiar with the system in order to perform experiments in embryos. The student is expected to keep an exquisite lab notebook and report to their advisors. The students are expected to collaborate and write protocols for the next generations.
Qualifications: Undergraduates seeking to apply should be highly motivated, perseverant, engaged and with a proactive attitude. Innate curiosity is 100% required; ability to ask questions and willing to learn, both techniques and scientific attitude. Although previous research experience is valuable, no previous research experience is necessary, but real passion for research and this topic is required. Students should be able to devote 6-9 hours/week to laboratory, as organized with the mentors. Students are expected to follow up with their commitment, and be highly responsible and disciplined. We prefer to recruit Sophomores or Juniors, Seniors with some experience are not discouraged.
Day-to-day supervisor for this project: Oscar Arenas, Post-Doc
Hours: 9-11 hrs
Related website: https://grassfoundation.org/people/oscar-arenas-sabogal/
Related website: https://grassfoundation.org/people/oscar-arenas-sabogal/