Next Article in Journal
High Intakes of Bioavailable Phosphate May Promote Systemic Oxidative Stress and Vascular Calcification by Boosting Mitochondrial Membrane Potential—Is Good Magnesium Status an Antidote?
Next Article in Special Issue
Fisher vs. the Worms: Extraordinary Sex Ratios in Nematodes and the Mechanisms that Produce Them
Previous Article in Journal
Death-Associated Protein 6 (Daxx) Alleviates Liver Fibrosis by Modulating Smad2 Acetylation
Previous Article in Special Issue
Food Limitation but Not Enhanced Rates of Ejaculate Production Imposes Reproductive and Survival Costs to Male Crickets
Article

Ancestral Sperm Ecotypes Reveal Multiple Invasions of a Non-Native Fish in Northern Europe

1
Department of Biological and Environmental Sciences, University of Gothenburg, Medicinaregatan 18A, 41390 Gothenburg, Sweden
2
Tjärnö Marine Laboratory, Linnaeus Centre for Marine Evolutionary Biology, University of Gothenburg, Laboratorievägen 10, 45296 Strömstad, Sweden
3
Gothenburg Global Biodiversity Centre, University of Gothenburg, Karl Skottbergs gata 22, 41390 Gothenburg, Sweden
4
Institute for Biodiversity and Ecosystem Research, Bulgarian Academy of Sciences, Tsar Osvoboditel Blvd. 1, 1000 Sofia, Bulgaria
5
Tjärnö Marine Laboratory, Department of Marine Sciences, University of Gothenburg, Laboratorievägen 10, 45296 Strömstad, Sweden
6
National Institute of Aquatic Resources, Technical University of Denmark, Kemitorvet, Building 202, 2800 Kgs. Lyngby, Denmark
7
Natural History Museum, University of Oslo, Sars’ gate 1, 0562 Oslo, Norway
*
Author to whom correspondence should be addressed.
Academic Editors: Tomer Avidor-Reiss, Eduardo R. S. Roldán, Heidi S. Fisher and Melissah Rowe
Cells 2021, 10(7), 1743; https://doi.org/10.3390/cells10071743
Received: 22 April 2021 / Revised: 5 July 2021 / Accepted: 5 July 2021 / Published: 9 July 2021
For externally fertilising organisms in the aquatic environment, the abiotic fertilisation medium can be a strong selecting force. Among bony fishes, sperm are adapted to function in a narrow salinity range. A notable exception is the family Gobiidae, where several species reproduce across a wide salinity range. The family also contains several wide-spread invasive species. To better understand how these fishes tolerate such varying conditions, we measured sperm performance in relation to salinity from a freshwater and a brackish population within their ancestral Ponto-Caspian region of the round goby, Neogobius melanostomus. These two ancestral populations were then compared to nine additional invaded sites across northern Europe, both in terms of their sperm traits and by using genomic SNP markers. Our results show clear patterns of ancestral adaptations to freshwater and brackish salinities in their sperm performance. Population genomic analyses show that the ancestral ecotypes have generally established themselves in environments that fit their sperm adaptations. Sites close to ports with intense shipping show that both outbreeding and admixture can affect the sperm performance of a population in a given salinity. Rapid adaptation to local conditions is also supported at some sites. Historical and contemporary evolution in the traits of the round goby sperm cells is tightly linked to the population and seascape genomics as well as biogeographic processes in these invasive fishes. Since the risk of a population establishing in an area is related to the genotype by environment match, port connectivity and the ancestry of the round goby population can likely be useful for predicting the species spread. View Full-Text
Keywords: gametes; Gobiidae; invasive; local adaptation; Neogobius melanostomus; NIS; Ponto-Caspian; round goby gametes; Gobiidae; invasive; local adaptation; Neogobius melanostomus; NIS; Ponto-Caspian; round goby
Show Figures

Figure 1

MDPI and ACS Style

Green, L.; Apostolou, A.; Faust, E.; Palmqvist, K.; Behrens, J.W.; Havenhand, J.N.; Leder, E.H.; Kvarnemo, C. Ancestral Sperm Ecotypes Reveal Multiple Invasions of a Non-Native Fish in Northern Europe. Cells 2021, 10, 1743. https://doi.org/10.3390/cells10071743

AMA Style

Green L, Apostolou A, Faust E, Palmqvist K, Behrens JW, Havenhand JN, Leder EH, Kvarnemo C. Ancestral Sperm Ecotypes Reveal Multiple Invasions of a Non-Native Fish in Northern Europe. Cells. 2021; 10(7):1743. https://doi.org/10.3390/cells10071743

Chicago/Turabian Style

Green, Leon, Apostolos Apostolou, Ellika Faust, Kajsa Palmqvist, Jane W. Behrens, Jonathan N. Havenhand, Erica H. Leder, and Charlotta Kvarnemo. 2021. "Ancestral Sperm Ecotypes Reveal Multiple Invasions of a Non-Native Fish in Northern Europe" Cells 10, no. 7: 1743. https://doi.org/10.3390/cells10071743

Find Other Styles
Note that from the first issue of 2016, MDPI journals use article numbers instead of page numbers. See further details here.

Article Access Map by Country/Region

1
Back to TopTop