Discovery of facultative parthenogenesis in a new world crocodile

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dc.contributor.authorBooth, Warrenen
dc.contributor.authorLevine, Brenna A.en
dc.contributor.authorCorush, Joel B.en
dc.contributor.authorDavis, Mark A.en
dc.contributor.authorDwyer, Quetzalen
dc.contributor.authorDe Plecker, Roelen
dc.contributor.authorSchuett, Gordon W.en
dc.date.accessioned2023-12-13T18:46:51Zen
dc.date.available2023-12-13T18:46:51Zen
dc.date.issued2023-06-07en
dc.description.abstractOver the past two decades, there has been an astounding growth in the documentation of vertebrate facultative parthenogenesis (FP). This unusual reproductive mode has been documented in birds, non-avian reptiles - specifically lizards and snakes - and elasmobranch fishes. Part of this growth among vertebrate taxa is attributable to awareness of the phenomenon itself and advances in molecular genetics/genomics and bioinformatics, and as such our understanding has developed considerably. Nonetheless, questions remain as to its occurrence outside of these vertebrate lineages, most notably in Chelonia (turtles) and Crocodylia (crocodiles, alligators and gharials). The latter group is particularly interesting because unlike all previously documented cases of FP in vertebrates, crocodilians lack sex chromosomes and sex determination is controlled by temperature. Here, using whole-genome sequencing data, we provide, to our knowledge, the first evidence of FP in a crocodilian, the American crocodile, Crocodylus acutus. The data support terminal fusion automixis as the reproductive mechanism; a finding which suggests a common evolutionary origin of FP across reptiles, crocodilians and birds. With FP now documented in the two main branches of extant archosaurs, this discovery offers tantalizing insights into the possible reproductive capabilities of the extinct archosaurian relatives of crocodilians and birds, notably members of Pterosauria and Dinosauria.en
dc.description.versionAccepted versionen
dc.format.extent6 page(s)en
dc.identifierARTN 20230129 (Article number)en
dc.identifier.doihttps://doi.org/10.1098/rsbl.2023.0129en
dc.identifier.eissn1744-957Xen
dc.identifier.issn1744-9561en
dc.identifier.issue6en
dc.identifier.pmid37282490en
dc.identifier.urihttps://hdl.handle.net/10919/117182en
dc.identifier.volume19en
dc.publisherRoyal Societyen
dc.relation.urihttps://www.ncbi.nlm.nih.gov/pubmed/37282490en
dc.rightsIn Copyrighten
dc.rights.urihttp://rightsstatements.org/vocab/InC/1.0/en
dc.subjectfacultative parthenogenesisen
dc.subjectterminal fusion automixisen
dc.subjectCrocodyliaen
dc.subjecttemperature-dependent sex determinationen
dc.subjectarchosauren
dc.subjectDinosauriaen
dc.subject.meshAnimalsen
dc.subject.meshBirdsen
dc.subject.meshAlligators and Crocodilesen
dc.subject.meshDinosaursen
dc.subject.meshTurtlesen
dc.subject.meshGenomicsen
dc.subject.meshParthenogenesisen
dc.subject.meshBiological Evolutionen
dc.titleDiscovery of facultative parthenogenesis in a new world crocodileen
dc.title.serialBiology Lettersen
dc.typeArticle - Refereeden
dc.type.otherArticleen
dc.type.otherJournalen
pubs.organisational-group/Virginia Techen
pubs.organisational-group/Virginia Tech/Agriculture & Life Sciencesen
pubs.organisational-group/Virginia Tech/Agriculture & Life Sciences/Entomologyen
pubs.organisational-group/Virginia Tech/All T&R Facultyen
pubs.organisational-group/Virginia Tech/Agriculture & Life Sciences/CALS T&R Facultyen

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