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Nature Research, Scientific Data, 1(1), 2014

DOI: 10.1038/sdata.2014.15

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Tree of Sex: A database of sexual systems

Journal article published in 2014 by Tia-Lynn Ashman, Doris Bachtrog, Heath Blackmon, Emma E. Goldberg, Matthew W. Hahn, Mark Kirkpatrick, Jun Kitano, Judith E. Mank, Itay Mayrose, Ray Ming, Sarah P. Otto, Catherine L. Peichel, Matthew W. Pennell, Nicolas Perrin ORCID, Laura Ross and other authors.
This paper is made freely available by the publisher.
This paper is made freely available by the publisher.

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Abstract

AbstractThe vast majority of eukaryotic organisms reproduce sexually, yet the nature of the sexual system and the mechanism of sex determination often vary remarkably, even among closely related species. Some species of animals and plants change sex across their lifespan, some contain hermaphrodites as well as males and females, some determine sex with highly differentiated chromosomes, while others determine sex according to their environment. Testing evolutionary hypotheses regarding the causes and consequences of this diversity requires interspecific data placed in a phylogenetic context. Such comparative studies have been hampered by the lack of accessible data listing sexual systems and sex determination mechanisms across the eukaryotic tree of life. Here, we describe a database developed to facilitate access to sexual system and sex chromosome information, with data on sexual systems from 11,038 plant, 705 fish, 173 amphibian, 593 non-avian reptilian, 195 avian, 479 mammalian, and 11,556 invertebrate species.