Mahendra, Sudil

Walter, Faculty Advisor, Brian

English

Digital Commons @ Illinois Wesleyan University

Illinois Wesleyan UniversityDigital Commons @ IWUJohn Wesley Powell Student ResearchConference 2008, 19th Annual JWP ConferenceApr 12th, 2:35 PM - 3:35 PMComparison of Ceratohyal Development in DanioRerio and Hemigrammus ErythrozonusSudil MahendraIllinois Wesleyan UniversityBrian Walter, Faculty AdvisorIllinois Wesleyan UniversityFollow this and additional works at: http://digitalcommons.iwu.edu/jwprcThis Event is brought to you for free and open access by The Ames Library, the Andrew W. Mellon Center for Curricular and FacultyDevelopment, the Office of the Provost and the Office of the President. It has been accepted for inclusion in Digital Commons @ IWU bythe faculty at Illinois Wesleyan University. For more information, please contact digitalcommons@iwu.edu.©Copyright is owned by the author of this document.Mahendra, Sudil and Walter, Faculty Advisor, Brian, "Comparison of Ceratohyal Development in Danio Rerio andHemigrammus Erythrozonus" (2008). John Wesley Powell Student Research Conference. 15.http://digitalcommons.iwu.edu/jwprc/2008/posters2/15THE JOHN WESLEY POWELL STUDENT RESEARCH CONFERENCE - APRIL 2008 Poster Presentation P30 COMPARISON OF CERATOHYAL DEVELOPMENT IN DANIO RERlO AND HEMIGRAMMUS ERYTHROZONUS Sudil Mahendra and Brian Walter* Biology Department, Illinois Wesleyan University Although the tetra Hemigrammus erthryozonus and the zebrafish Danio rerio are both considered Ostariophysian fishes, they exhibit different bone and cartilage growth patterns during development. Utilizing whole mount alcian blue and alizarin red staining, we examined the pattern of growth of the ceratohyal cartilage in Hemigrammus erythrozonus and Danio rerio. Comparisons were made between these two fishes in regard to overall size and length of the ceratohyal as well as the patterns of ossification. Our data revealed that Hemigrammus possesses a larger ceratohyal, morphologically distinct from that of Danio. Moreover, the growth and subsequent ossification occurs more rapidly in Hemigrammus. The differences observed may correlate with discrete predatory and/or behavioral niches occupied by these fishes in their respective environments. These initial data provide a basis for further studies, including a more detailed analysis of the development of the ceratohyal cartilage and a determination of how skeletogenic genes are differentially expressed between these two species. 

Comparison of Ceratohyal Development in \u3cem\u3eDanio Rerio\u3c/em\u3e and \u3cem\u3eHemigrammus Erythrozonus\u3c/em\u3e

https://digitalcommons.iwu.edu/cgi/viewcontent.cgi?article=2032&amp;context=jwprc

Comparison of Ceratohyal Development in \u3cem\u3eDanio Rerio\u3c/em\u3e and \u3cem\u3eHemigrammus Erythrozonus\u3c/em\u3e

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