Talk:Shark Development

About Discussion Pages

On this website the Discussion Tab or "talk pages" for a topic has been used for several purposes: References - recent and historic that relates to the topic Additional topic information - currently prepared in draft format Links - to related webpages Topic page - an edit history as used on other Wiki sites Lecture/Practical - student feedback Student Projects - online project discussions. Links: Pubmed Most Recent | Reference Tutorial | Journal Searches Glossary Links Glossary: A | B | C | D | E | F | G | H | I | J | K | L | M | N | O | P | Q | R | S | T | U | V | W | X | Y | Z | Numbers | Symbols | Term Link Cite this page: Hill, M.A. (2024, June 1) Embryology Shark Development. Retrieved from https://embryology.med.unsw.edu.au/embryology/index.php/Talk:Shark_Development

2018

A staging table for the embryonic development of the brownbanded bamboo shark (Chiloscyllium punctatum). Onimaru K1, Motone F1,2, Kiyatake I3, Nishida K3, Kuraku S1. Author information Abstract BACKGROUND: Studying cartilaginous fishes (chondrichthyans) has helped us understand vertebrate evolution and diversity. However, resources such as genome sequences, embryos, and detailed staging tables are limited for species within this clade. To overcome these limitations, we have focused on a species, the brownbanded bamboo shark (Chiloscyllium punctatum), which is a relatively common aquarium species that lays eggs continuously throughout the year. In addition, because of its relatively small genome size, this species is promising for molecular studies.

RESULTS: To enhance biological studies of cartilaginous fishes, we establish a normal staging table for the embryonic development of the brownbanded bamboo shark. Bamboo shark embryos take around 118 days to reach the hatching period at 25°C, which is approximately 1.5 times as fast as the small-spotted catshark (Scyliorhinus canicula) takes. Our staging table divides the embryonic period into 38 stages. Furthermore, we found culture conditions that allow early embryos to grow in partially opened egg cases.

CONCLUSIONS: In addition to the embryonic staging table, we show that bamboo shark embryos exhibit relatively fast embryonic growth and are amenable to culture, key characteristics that enhance their experimental utility. Therefore, the present study is a foundation for cartilaginous fish research. Developmental Dynamics 247:712-723, 2018. © 2017 Wiley Periodicals, Inc.

© 2018 The Authors Developmental Dynamics published by Wiley Periodicals, Inc. on behalf of American Association of Anatomists.

KEYWORDS: Shark embryonic development; brownbanded bamboo shark; elasmobranchs; evolutionary developmental biology; ex ovo culture; fin development; staging table PMID: 29396887 PMCID: PMC5947634 DOI: 10.1002/dvdy.24623