Initial collection, characterization, and storage of tuatara (Sphenodon punctatus) sperm offers insight into their unique reproductive system.

Successful reproduction is critical to the persistence of at-risk species; however, reproductive characteristics are understudied in many wild species. New Zealand's endemic tuatara (Sphenodon punctatus), the sole surviving member of the reptile order Rhynchocephalia, is restricted to 10% of it...

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Autores principales:	Sarah K Lamar, Nicola J Nelson, Jennifer A Moore, Helen R Taylor, Susan N Keall, Diane K Ormsby
Formato:	article
Lenguaje:	EN
Publicado:	Public Library of Science (PLoS) 2021
Materias:	Medicine R Science Q
Acceso en línea:	https://doaj.org/article/2942413bc05448c4bcf2f33753f9e624
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spelling	oai:doaj.org-article:2942413bc05448c4bcf2f33753f9e6242021-12-02T20:15:34ZInitial collection, characterization, and storage of tuatara (Sphenodon punctatus) sperm offers insight into their unique reproductive system.1932-620310.1371/journal.pone.0253628https://doaj.org/article/2942413bc05448c4bcf2f33753f9e6242021-01-01T00:00:00Zhttps://doi.org/10.1371/journal.pone.0253628https://doaj.org/toc/1932-6203Successful reproduction is critical to the persistence of at-risk species; however, reproductive characteristics are understudied in many wild species. New Zealand's endemic tuatara (Sphenodon punctatus), the sole surviving member of the reptile order Rhynchocephalia, is restricted to 10% of its historic range. To complement ongoing conservation efforts, we collected and characterized mature sperm from male tuatara for the first time. Semen collected both during mating and from urine after courting contained motile sperm and had the potential for a very high percentage of viable sperm cells (98%). Scanning electron microscopy revealed a filiform sperm cell with distinct divisions: head, midpiece, tail, and reduced end piece. Finally, our initial curvilinear velocity estimates for tuatara sperm are 2-4 times faster than any previously studied reptile. Further work is needed to examine these trends at a larger scale; however, this research provides valuable information regarding reproduction in this basal reptile.Sarah K LamarNicola J NelsonJennifer A MooreHelen R TaylorSusan N KeallDiane K OrmsbyPublic Library of Science (PLoS)articleMedicineRScienceQENPLoS ONE, Vol 16, Iss 7, p e0253628 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	Medicine R Science Q
spellingShingle	Medicine R Science Q Sarah K Lamar Nicola J Nelson Jennifer A Moore Helen R Taylor Susan N Keall Diane K Ormsby Initial collection, characterization, and storage of tuatara (Sphenodon punctatus) sperm offers insight into their unique reproductive system.
description	Successful reproduction is critical to the persistence of at-risk species; however, reproductive characteristics are understudied in many wild species. New Zealand's endemic tuatara (Sphenodon punctatus), the sole surviving member of the reptile order Rhynchocephalia, is restricted to 10% of its historic range. To complement ongoing conservation efforts, we collected and characterized mature sperm from male tuatara for the first time. Semen collected both during mating and from urine after courting contained motile sperm and had the potential for a very high percentage of viable sperm cells (98%). Scanning electron microscopy revealed a filiform sperm cell with distinct divisions: head, midpiece, tail, and reduced end piece. Finally, our initial curvilinear velocity estimates for tuatara sperm are 2-4 times faster than any previously studied reptile. Further work is needed to examine these trends at a larger scale; however, this research provides valuable information regarding reproduction in this basal reptile.
format	article
author	Sarah K Lamar Nicola J Nelson Jennifer A Moore Helen R Taylor Susan N Keall Diane K Ormsby
author_facet	Sarah K Lamar Nicola J Nelson Jennifer A Moore Helen R Taylor Susan N Keall Diane K Ormsby
author_sort	Sarah K Lamar
title	Initial collection, characterization, and storage of tuatara (Sphenodon punctatus) sperm offers insight into their unique reproductive system.
title_short	Initial collection, characterization, and storage of tuatara (Sphenodon punctatus) sperm offers insight into their unique reproductive system.
title_full	Initial collection, characterization, and storage of tuatara (Sphenodon punctatus) sperm offers insight into their unique reproductive system.
title_fullStr	Initial collection, characterization, and storage of tuatara (Sphenodon punctatus) sperm offers insight into their unique reproductive system.
title_full_unstemmed	Initial collection, characterization, and storage of tuatara (Sphenodon punctatus) sperm offers insight into their unique reproductive system.
title_sort	initial collection, characterization, and storage of tuatara (sphenodon punctatus) sperm offers insight into their unique reproductive system.
publisher	Public Library of Science (PLoS)
publishDate	2021
url	https://doaj.org/article/2942413bc05448c4bcf2f33753f9e624
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Initial collection, characterization, and storage of tuatara (Sphenodon punctatus) sperm offers insight into their unique reproductive system.

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