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Laboratory generation of new parthenogenetic lineages supports contagious parthenogenesis in Artemia

Maccari, Marta; Amat, Francisco; Hontoria, Francisco; Gómez, Africa


Marta Maccari

Francisco Amat

Francisco Hontoria


Contagious parthenogenesis-a process involving rare functional males produced by a parthenogenetic lineage which mate with coexisting sexual females resulting in fertile parthenogenetic offspring-is one of the most striking mechanisms responsible for the generation of new parthenogenetic lineages. Populations of the parthenogenetic diploid brine shrimp Artemia produce fully functional males in low proportions. The evolutionary role of these so-called Artemia rare males is, however, unknown. Here we investigate whether new parthenogenetic clones could be obtained in the laboratory by mating these rare males with sexual females. We assessed the survival and sex ratio of the hybrid ovoviviparous offspring from previous crosses between rare males and females from all Asiatic sexual species, carried out cross-mating experiments between F1 hybrid individuals to assess their fertility, and estimated the viability and the reproductive mode of the resulting F2 offspring. Molecular analysis confirmed the parentage of hybrid parthenogenetic F2. Our study documents the first laboratory synthesis of new parthenogenetic lineages in Artemia and supports a model for the contagious spread of parthenogenesis. Our results suggest recessive inheritance but further experiments are required to confirm the likelihood of the contagious parthenogenesis model. © 2014 Maccari et al.


Maccari, M., Amat, F., Hontoria, F., & Gómez, A. (2014). Laboratory generation of new parthenogenetic lineages supports contagious parthenogenesis in Artemia. PeerJ, 2014(1), Article e439.

Journal Article Type Article
Acceptance Date Feb 1, 2013
Online Publication Date Jun 17, 2014
Publication Date Jun 17, 2014
Deposit Date Aug 24, 2015
Publicly Available Date Nov 23, 2017
Journal PeerJ
Electronic ISSN 2167-8359
Publisher PeerJ
Peer Reviewed Peer Reviewed
Volume 2014
Issue 1
Article Number e439
Keywords Biodiversity, Evolutionary studies, Genetics, Zoology
Public URL
Publisher URL
Additional Information Article no. e439


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Copyright Statement
© 2014 Maccari et al.
This is an open access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, reproduction and adaptation in any medium and for any purpose provided that it is properly attributed. For attribution, the original author(s), title, publication source (PeerJ) and either DOI or URL of the article must be cited.

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