Organizer regions in marine colonial hydrozoans

Zoology : Analysis of Complex Systems, ZACS
Tatiana MayorovaYulia Kraus

Abstract

Organizers are specific tissue regions of developing organisms that provide accuracy and robustness to the body plan formation. Hydrozoan cnidarians (both solitary and colonial) require organizer regions for maintaining the regular body patterning during continuous tissue dynamics during asexual reproduction and growth. While the hypostomal organizer of the solitary Hydra has been studied relatively well, our knowledge of organizers in colonial hydrozoans remains fragmentary and incomplete. As colonial hydrozoans demonstrate an amazing diversity of morphological and life history traits, it is of special interest to investigate the organizers specific for particular ontogenetic stages and particular types of colonies. In the present study we aimed to assess the inductive capacities of several candidate organizer regions in hydroids with different colony organization. We carried out grafting experiments on colonial hydrozoans belonging to Leptothecata and Anthoathecata. We confirmed that the hypostome tip is an organizer in the colonial Anthoathecata as it is in the solitary polyp Hydra. We also found that the posterior tip of the larva is an organizer in hydroids regardless of the peculiarities of their metamorphosis mode and co...Continue Reading

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Citations

May 28, 2016·Nature Communications·Yulia KrausGrigory Genikhovich
Aug 2, 2016·Current Opinion in Genetics & Development·Lucas LeclèreEvelyn Houliston
Sep 8, 2020·ELife·Chiara SinigagliaLucas Leclère
Aug 17, 2020·Journal of Experimental Zoology. Part B, Molecular and Developmental Evolution·Paulyn CartwrightSteven M Sanders

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