Two homogametic genotypes – one crayfish: on the consequences of intersexuality

Tom Levy; Tomer Ventura; Giulio De Leo; Nufar Grinshpan; Faiza Amterat Abu Abayed; Rivka Manor; Amit Savaya; Menachem Y Sklarz; Vered Chalifa-Caspi; Dan Mishmar; Amir Sagi

doi:10.1016/j.isci.2020.101652

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Two homogametic genotypes – one crayfish: on the consequences of intersexuality

Journal article

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Two homogametic genotypes – one crayfish: on the consequences of intersexuality

Tom Levy, Tomer Ventura, Giulio De Leo, Nufar Grinshpan, Faiza Amterat Abu Abayed, Rivka Manor, Amit Savaya, Menachem Y Sklarz, Vered Chalifa-Caspi, Dan Mishmar, …

iScience, Vol.23(11), pp.1-13

2020

DOI: https://doi.org/10.1016/j.isci.2020.101652

PMCID: PMC7578757

PMID: 33103088

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Abstract

In the Australian redclaw crayfish, Cherax quadricarinatus (WZ/ZZ system), intersexuals, although exhibiting both male and female gonopores, are functional males bearing a female genotype (WZ males). Therefore, the occurrence of the unusual homogametic WW females in nature is plausible. We developed W/Z genomic sex markers and used them to investigate the genotypic structure of experimental and native C. quadricarinatus populations in Australia. We discovered, for the first time, the natural occurrence of WW females in crustacean populations. By modelling population dynamics, we found that intersexuals contribute to the growth rate of crayfish populations in the short term. Given the vastly fragmented C. quadricarinatus habitat, which is characterized by drought-flood cycles, we speculate that intersexuals contribute to the fitness of this species since they lead to occasional increment in the population growth rate which potentially supports crayfish population restoration and establishment under extinction threats or colonization events.

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Title: Two homogametic genotypes – one crayfish: on the consequences of intersexuality
Authors: Tom Levy (Author) - Ben-Gurion University of the Negev
Tomer Ventura (Author) - University of the Sunshine Coast, Queensland, GeneCology Research Centre - Legacy
Giulio De Leo (Author) - Stanford University
Nufar Grinshpan (Author) - Ben-Gurion University of the Negev
Faiza Amterat Abu Abayed (Author) - Ben-Gurion University of the Negev
Rivka Manor (Author) - Ben-Gurion University of the Negev
Amit Savaya (Author) - Ben-Gurion University of the Negev
Menachem Y Sklarz (Author) - Ben-Gurion University of the Negev
Vered Chalifa-Caspi (Author) - Ben-Gurion University of the Negev
Dan Mishmar (Author) - Ben-Gurion University of the Negev
Amir Sagi (Author) - Ben-Gurion University of the Negev
Publication details: iScience, Vol.23(11), pp.1-13
Publisher: Cell Press
Date published: 2020
DOI: 10.1016/j.isci.2020.101652
ISSN: 2589-0042
PMID: 33103088; PMC7578757
Copyright note: Copyright © 2020. This is an open access article under the CC BY license (http://creativecommons.org/licenses/by/4.0/).
Organisation Unit: School of Science and Engineering - Legacy; University of the Sunshine Coast, Queensland; School of Science, Technology and Engineering; Centre for Bioinnovation
Language: English
Record Identifier: 99483707202621
Output Type: Journal article

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Collaboration types: Domestic collaboration; International collaboration
Web Of Science research areas: Marine & Freshwater Biology

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