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Gueho A, Żarski D, Rime H, Guével B, Com E, Lavigne R, Nguyen T, Montfort J, Pineau C, Bobe J. Evolutionarily conserved ovarian fluid proteins are responsible for extending egg viability in salmonid fish. Sci Rep 2024; 14:9651. [PMID: 38671194 PMCID: PMC11053066 DOI: 10.1038/s41598-024-60118-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/05/2023] [Accepted: 04/18/2024] [Indexed: 04/28/2024] Open
Abstract
In contrast to most fishes, salmonids exhibit the unique ability to hold their eggs for several days after ovulation without significant loss of viability. During this period, eggs are held in the body cavity in a biological fluid, the coelomic fluid (CF) that is responsible for preserving egg viability. To identify CF proteins responsible for preserving egg viability, a proteomic comparison was performed using 3 salmonid species and 3 non-salmonid species to identify salmonid-specific highly abundant proteins. In parallel, rainbow trout CF fractions were purified and used in a biological test to estimate their egg viability preservation potential. The most biologically active CF fractions were then subjected to mass spectrometry analysis. We identified 50 proteins overabundant in salmonids and present in analytical fractions with high egg viability preservation potential. The identity of these proteins illuminates the biological processes participating in egg viability preservation. Among identified proteins of interest, the ovarian-specific expression and abundance in CF at ovulation of N-acetylneuraminic acid synthase a (Nansa) suggest a previously unsuspected role. We show that salmonid CF is a complex biological fluid containing a diversity of proteins related to immunity, calcium binding, lipid metabolism, proteolysis, extracellular matrix and sialic acid metabolic pathway that are collectively responsible for preserving egg viability.
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Affiliation(s)
- Aurélie Gueho
- INRAE UR1037, Fish Physiology and Genomics, 35000, Rennes, France
| | - Daniel Żarski
- Department of Gamete and Embryo Biology, Institute of Animal Reproduction and Food Research, Polish Academy of Sciences, Tuwima Str. 10, 10-748, Olsztyn, Poland
| | - Hélène Rime
- INRAE UR1037, Fish Physiology and Genomics, 35000, Rennes, France
| | - Blandine Guével
- Inserm, EHESP, Irset, UMR_S 1085, Univ Rennes, 35000, Rennes, France
- CNRS, Inserm, Biosit UAR 3480 US_S 018, Protim Core Facility, Univ Rennes, 35000, Rennes, France
| | - Emmanuelle Com
- Inserm, EHESP, Irset, UMR_S 1085, Univ Rennes, 35000, Rennes, France
- CNRS, Inserm, Biosit UAR 3480 US_S 018, Protim Core Facility, Univ Rennes, 35000, Rennes, France
| | - Régis Lavigne
- Inserm, EHESP, Irset, UMR_S 1085, Univ Rennes, 35000, Rennes, France
- CNRS, Inserm, Biosit UAR 3480 US_S 018, Protim Core Facility, Univ Rennes, 35000, Rennes, France
| | - Thaovi Nguyen
- INRAE UR1037, Fish Physiology and Genomics, 35000, Rennes, France
| | - Jérôme Montfort
- INRAE UR1037, Fish Physiology and Genomics, 35000, Rennes, France
| | - Charles Pineau
- Inserm, EHESP, Irset, UMR_S 1085, Univ Rennes, 35000, Rennes, France
- CNRS, Inserm, Biosit UAR 3480 US_S 018, Protim Core Facility, Univ Rennes, 35000, Rennes, France
| | - Julien Bobe
- INRAE UR1037, Fish Physiology and Genomics, 35000, Rennes, France.
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The Use of Ovarian Fluid as Natural Fertilization Medium for Cryopreserved Semen in Mediterranean Brown Trout: The Effects on Sperm Swimming Performance. Vet Sci 2023; 10:vetsci10030219. [PMID: 36977258 PMCID: PMC10051816 DOI: 10.3390/vetsci10030219] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/27/2023] [Revised: 03/01/2023] [Accepted: 03/09/2023] [Indexed: 03/18/2023] Open
Abstract
D-532 fertilization solution is generally used to replace the water or ovarian fluid during artificial reproductive practices in salmonids due to its ability to boost sperm motility and increase fertilization rates compared with natural activation media. However, the maintenance of ovarian fluid in a reproductive microenvironment gives it the advantage of protecting the eggs from potential harmful factors from the external environment and simplifying the field operations related to its removal when D-532 is used alone. In light of this, the aim of the present study was to investigate in vitro, for the first time, the effect of ovarian fluid (OF 100%) on post-thaw sperm swimming performance of Mediterranean trout, comparing it with D-532 and a mixed solution of 50% D-532 and 50% ovarian fluid (OF 50%). The percentage of motile spermatozoa and movement duration was significantly increased in OF 100% and OF 50% compared with D-532. Sperm velocity was higher in D-532, but significant differences were recorded only with OF 100%. In conclusion, these results suggest that the presence of ovarian fluid alone or in combination with D-532 in an artificial microenvironment of reproduction represents a key factor in potentially increasing fertilization success when the frozen semen of Mediterranean brown trout is used.
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Hajirezaee S, Abed-Elmdoust A, Alekhina N, Chupradit S, Mustafa YF. Metabolite profiling of the post-ovulatory oocytes of the common carp, Cyprinus carpio: A 1H NMR-based metabolomics approach. COMPARATIVE BIOCHEMISTRY AND PHYSIOLOGY. PART D, GENOMICS & PROTEOMICS 2021; 40:100917. [PMID: 34607241 DOI: 10.1016/j.cbd.2021.100917] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/02/2021] [Revised: 09/15/2021] [Accepted: 09/15/2021] [Indexed: 06/13/2023]
Abstract
A metabolomics study was conducted to investigate the molecular bases of oocyte over-ripening in common carp, Cyprinus carpio from a metabolic point of view. The ovulation was induced in fish brooders by intramuscular injection of pituitary extract and oocytes were collected four times post-ovulation with 30 min intervals. A set of 32 metabolites were identified on the NMR spectra of the oocytes, which mainly included energy-linked metabolites, amino acids, methylated metabolites and citric acid cycle (TCA) intermediates. PCA and PLS-DA models clearly separated the post ovulations times, indicating the effects of post-ovulation time on oocyte metabolome content. Based on the loading plot outputs, 15 metabolites including tryptophan, cysteine, AMP, tyrosine, valine, creatine phosphate (PCr), ATP, leucine, inosine, malate, acetate, TMAO, glucose, fumarate and lysine had more effects on the separation of post ovulation times. According to the results of metabolite profiling, the concentrations of glutamine, alanine, tryptophan, lysine and cysteine mostly significantly (P < 0.01) increased at 90 and 120 min post-ovulation. The concentrations of PCr, ATP, inosine and guanosine were relatively stable until 60 min post-ovulation, while significantly (P < 0.01) decreased at 90 and 120 min post ovulation. The TCA metabolites succinate, malate and fumarate significantly (P < 0.01) elevated at 90 and 120 min post-ovulation. AMP concentrations remained relatively unchanged until 30 min and then progressively decreased with time post ovulation (P < 0.01). The concentrations of lactate showed significant elevations at 90 and 120 min post ovulation (P < 0.01). In conclusion, the energetic potentials of the oocytes reduced with time post ovulation. There were apparent elevations in the concentrations of free amino acids, which may be associated with the onset of proteolytic activities in the post ovulatory oocytes. In addition, we found some changes in the apoptotic-related metabolites, which may support the results of previous studies regarding the oxidative stress and following apoptosis in post ovulatory oocytes of fish.
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Affiliation(s)
- Saeed Hajirezaee
- Department of Fisheries Sciences and Engineering, Faculty of Natural Resources, University of Jiroft, Jiroft, Kerman, Iran.
| | - Amirreza Abed-Elmdoust
- Department of Fisheries Sciences, Faculty of Natural Resources, University of Tehran, Karaj, Iran
| | - Natalia Alekhina
- Department of Regulatory Affairs in the Sphere of Drugs Products and Medical Devices, Sechenov First Moscow State Medical University, Trubetskaya st., 8-2, Moscow 119991, Russia
| | - Supat Chupradit
- Department of Occupational Therapy, Faculty of Associated Medical Sciences, Chiang Mai University, Chiang Mai 50200, Thailand
| | - Yasser Fakri Mustafa
- Department of Pharmaceutical Chemistry, College of Pharmacy, University of Mosul, Mosul 41001, Iraq
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A Review on Environmental Contaminants-Related Fertility Threat in Male Fishes: Effects and Possible Mechanisms of Action Learned from Wildlife and Laboratory Studies. Animals (Basel) 2021; 11:ani11102817. [PMID: 34679838 PMCID: PMC8532744 DOI: 10.3390/ani11102817] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/27/2021] [Revised: 09/14/2021] [Accepted: 09/19/2021] [Indexed: 12/14/2022] Open
Abstract
Increasing global rates of diminished fertility in males has been suggested to be associated with exposure to environmental contaminants (ECs). The aquatic environments are the final repository of ECs. As the reproductive system is conserved in vertebrates, studies on the effects of ECs on fertility endpoints in fishes provide us with valuable information to establish biomarkers in risk assessment of ECs, and to understand the ECs-related fertility threat. The aim of the present review was to evaluate associations between ECs and fertility determinants to better understand ECs-related male fertility threat in male fishes. Wildlife studies show that the reproductive system has been affected in fishes sampled from the polluted aquatic environment. The laboratory studies show the potency of ECs including natural and synthetic hormones, alkylphenols, bisphenols, plasticizers, pesticides, pharmaceutical, alkylating, and organotin agents to affect fertility determinants, resulting in diminished fertility at environmentally relevant concentrations. Both wildlife and laboratory studies reveal that ECs adverse effects on male fertility are associated with a decrease in sperm production, damage to sperm morphology, alternations in sperm genome, and decrease in sperm motility kinetics. The efficiency of ECs to affect sperm quality and male fertility highly depends on the concentration of the contaminants and the duration of exposure. Our review highlights that the number of contaminants examined over fertility tests are much lower than the number of contaminants detected in our environment. The ECs effects on fertility are largely unknown when fishes are exposed to the contaminants at early developmental stages. The review suggests the urgent need to examine ECs effects on male fertility when a fish is exposed at different developmental stages in a single or combination protocol. The ECs effects on the sperm genome are largely unknown to understand ECs-related inheritance of reproductive disorders transmitted to the progeny. To elucidate modes of action of ECs on sperm motility, it is needed to study functional morphology of the motility apparatus and to investigate ECs-disrupted motility signaling.
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Does the Rainbow Trout Ovarian Fluid Promote the Spermatozoon on Its Way to the Egg? Int J Mol Sci 2021; 22:ijms22179519. [PMID: 34502430 PMCID: PMC8430650 DOI: 10.3390/ijms22179519] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/27/2021] [Revised: 08/26/2021] [Accepted: 08/30/2021] [Indexed: 11/17/2022] Open
Abstract
The fertilization of freshwater fish occurs in an environment that may negatively affect the gametes; therefore, the specific mechanisms triggering the encounters of gametes would be highly expedient. The egg and ovarian fluid are likely the major sources of these triggers, which we confirmed here for rainbow trout (Oncorhynchus mykiss). The ovarian fluid affected significantly spermatozoa performance: it supported high velocity for a longer period and changed the motility pattern from tumbling in water to straightforward moving in the ovarian fluid. Rainbow trout ovarian fluid induced a trapping chemotaxis-like effect on activated male gametes, and this effect depended on the properties of the activating medium. The interaction of the spermatozoa with the attracting agents was accompanied by the "turn-and-run" behavior involving asymmetric flagellar beating and Ca2+ concentration bursts in the bent flagellum segment, which are characteristic of the chemotactic response. Ovarian fluid created the optimal environment for rainbow trout spermatozoa performance, and the individual peculiarities of the egg (ovarian fluid)-sperm interaction reflect the specific features of the spawning process in this species.
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Kholodnyy V, Dzyuba B, Gadêlha H, Cosson J, Boryshpolets S. Egg-sperm interaction in sturgeon: role of ovarian fluid. FISH PHYSIOLOGY AND BIOCHEMISTRY 2021; 47:653-669. [PMID: 32803545 DOI: 10.1007/s10695-020-00852-2] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/28/2019] [Accepted: 07/28/2020] [Indexed: 06/11/2023]
Abstract
Fertilization of freshwater fish occurs in the environment which negatively affects a lifespan of gametes mostly due to the osmotic shock; therefore, male gametes should reach the female gamete, as soon as possible. The existence of mechanisms controlling the encounter of gametes would be highly expedient in this case. By analogy with other species for which guidance was demonstrated, it is likely that this control may be performed by ovarian fluid or substances released by eggs. The aim was to study the effect of ovarian fluid and egg-released substances on spermatozoa behavior in sterlet. It was found that the presence of a particular concentration of ovarian fluid (30% solution in water) had an inhibiting effect on spermatozoa motility initiation. Lower concentrations of the ovarian fluid improved the longevity of spermatozoa and did not affect their trajectories. Test of chemotactic response (using a microcapillary injection of fluids into the suspension of motile spermatozoa) showed no effect of ovarian fluid on spermatozoa behavior, while at the same time, the attracting effect of the egg-conditioned medium was evident (i.e., due to some substances released from the eggs during their contact with freshwater). The results of the fertilization test showed that the presence of ovarian fluid prevented the eggs from losing the fertilizing ability due to the contact with water, as well as promoted the spermatozoa to fertilize the eggs during a longer period of time. Thus, the combined physicochemical action of "female factors" affects sterlet gametes during fertilization and may be involved in the guidance and selection mechanisms.
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Affiliation(s)
- Vitaliy Kholodnyy
- University of South Bohemia in České Budějovice, Faculty of Fisheries and Protection of Waters, South Bohemian Research Center of Aquaculture and Biodiversity of Hydrocenoses, Zátiší 728/II, 389 25, Vodňany, Czech Republic.
| | - Borys Dzyuba
- University of South Bohemia in České Budějovice, Faculty of Fisheries and Protection of Waters, South Bohemian Research Center of Aquaculture and Biodiversity of Hydrocenoses, Zátiší 728/II, 389 25, Vodňany, Czech Republic
| | - Hermes Gadêlha
- University of South Bohemia in České Budějovice, Faculty of Fisheries and Protection of Waters, South Bohemian Research Center of Aquaculture and Biodiversity of Hydrocenoses, Zátiší 728/II, 389 25, Vodňany, Czech Republic
- Department of Engineering Mathematics, University of Bristol, Bristol, BS8 1UB, UK
| | - Jacky Cosson
- University of South Bohemia in České Budějovice, Faculty of Fisheries and Protection of Waters, South Bohemian Research Center of Aquaculture and Biodiversity of Hydrocenoses, Zátiší 728/II, 389 25, Vodňany, Czech Republic
| | - Sergii Boryshpolets
- University of South Bohemia in České Budějovice, Faculty of Fisheries and Protection of Waters, South Bohemian Research Center of Aquaculture and Biodiversity of Hydrocenoses, Zátiší 728/II, 389 25, Vodňany, Czech Republic
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7
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Nowosad J, Kucharczyk D, Sikora M, Kupren K. Optimization of barbel (Barbus Barbus L.) fertilization and effects of ovarian fluid when there are controlled conditions for gamete activations. Anim Reprod Sci 2020; 224:106652. [PMID: 33249355 DOI: 10.1016/j.anireprosci.2020.106652] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/10/2020] [Revised: 11/11/2020] [Accepted: 11/13/2020] [Indexed: 12/14/2022]
Abstract
Fertilization is one of the most important procedures in artificial reproduction and it directly affects the reproduction outcome. When there is optimization of fertilization, there can be a positive effect on subsequent reproductive processes and economic aspects of aquaculture. This study was conducted to determine time for which oocytes and sperm of barbel Barbus barbus retain fertilization capacity following placement in freshwater. Furthermore, the amount of ovarian fluid, excreted by fish during spawning with eggs (OFI; %) was determined, along with the chemical composition and effects on fertilization were determined. Gametes, ovarian fluid, and seminal plasma from barbel spawning specimens of the F4 generation were used to conduct the study. Ovarian fluid accounted for 14%-68% of contents of the mass released at spawning and post-spawning composition differed depending on whether hormonal treatments were utilized for control of reproduction. There was an association (R2 = 0.982; P = 0.000) between the pH of ovarian fluid and the barbel embryo survival rate. There was the greatest survival rate (>60 %) when the pH range of 7.9-8.4 and there was a lesser embryo viability when pH values were lesser or greater than values within this range (P < 0.05). The results from the study indicate that barbel eggs retain fertilization capacity longer (as long as 210 s) after activation by placement in fresh water than spermatozoa (about 30 s).
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Affiliation(s)
- Joanna Nowosad
- Department of Ichthyology and Aquaculture, Faculty of Animal Bioengineering, University of Warmia and Mazury, Olsztyn, Poland.
| | - Dariusz Kucharczyk
- Department of Ichthyology and Aquaculture, Faculty of Animal Bioengineering, University of Warmia and Mazury, Olsztyn, Poland
| | - Mateusz Sikora
- Department of Ichthyology and Aquaculture, Faculty of Animal Bioengineering, University of Warmia and Mazury, Olsztyn, Poland
| | - Krzysztof Kupren
- Department of Ichthyology and Aquaculture, Faculty of Animal Bioengineering, University of Warmia and Mazury, Olsztyn, Poland
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8
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Nowosad J, Dryl K, Kupren K, Kucharczyk D. Inhibiting the influence of ovarian fluid on spermatozoa activation and spermatozoa kinetic characteristics in the common barbel Barbus barbus. Theriogenology 2020; 158:250-257. [PMID: 32998078 DOI: 10.1016/j.theriogenology.2020.09.007] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/06/2020] [Revised: 09/03/2020] [Accepted: 09/06/2020] [Indexed: 12/26/2022]
Abstract
As a result of evolution, various finfish species have developed different breeding strategies. However, there are some similarities, and one of them is the positive effect of ovarian fluid on spermatozoa. The opposite of this phenomenon was found in the common barbel (Barbus barbus). The present study analyzed the effect of ovarian fluid (OF), distilled water (DW) and Woynarovich solution (WS) on the motility, longevity and kinetics of barbel spermatozoa. These spermatozoa parameters were also evaluated with various dilutions of ovarian fluid (OF) in relation to distilled water [0:4 (Group OF 0%), 1:3 (Group OF 25%), 1:1 (Group OF 50%), 3:1 (Group OF 75%), 4:0 (Group OF 100%)] and spermatozoa reactivation after a 30 s (Group OFR30s 100%) treatment in ovarian fluid. The motility analysis was carried out using computer-assisted semen analysis (CASA). The negative interaction of ovarian fluid with spermatozoa motility in the same fish species was recorded for the first time. In pure ovarian fluid, the average spermatozoa motility (MOT) decreased significantly (1.40 ± 0.94%). The negative effect of ovarian fluid-to-spermatozoa motility was reversible, and after a 30 s treatment in ovarian fluid and later dilution with water, spermatozoa motility was reactivated (from 2.25 ± 0.53% vs 69.78 ± 6.02%). The use of Woynarovich solution as an activator of spermatozoa movement had a positive effect (P < 0.05) on spermatozoa movement longevity (motility up to 90 s) and the percentage of motile spermatozoa compared to distilled water (up to 45 s) and ovarian fluid (P < 0.05).
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Affiliation(s)
- Joanna Nowosad
- Department of Ichthyology and Aquaculture, Faculty of Animal Bioengineering, University of Warmia and Mazury, Olsztyn, Poland.
| | - Katarzyna Dryl
- Department of Gamete and Embryo Biology, Institute of Animal Reproduction and Food Research, Polish Academy of Science, Olsztyn, Poland
| | - Krzysztof Kupren
- Department of Ichthyology and Aquaculture, Faculty of Animal Bioengineering, University of Warmia and Mazury, Olsztyn, Poland
| | - Dariusz Kucharczyk
- Department of Ichthyology and Aquaculture, Faculty of Animal Bioengineering, University of Warmia and Mazury, Olsztyn, Poland
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Myers JN, Bradford AJ, Hallas VS, Lawson LL, Pitcher TE, Dunham RA, Butts IAE. Channel catfish ovarian fluid differentially enhances blue catfish sperm performance. Theriogenology 2020; 149:62-71. [PMID: 32247214 DOI: 10.1016/j.theriogenology.2020.03.022] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/24/2019] [Revised: 02/24/2020] [Accepted: 03/12/2020] [Indexed: 12/12/2022]
Abstract
For externally fertilizing fishes, interactions between male and female gametes have been shown to have remarkable impacts on sperm performance. Ovarian fluid (OF) and its ability to alter the swimming behavior of fish sperm makes it a determining factor of fertility. With the expansion of channel catfish (Ictalurus punctatus) ♀ × blue catfish (Ictalurus furcatus) ♂ hybrid aquaculture, it is essential to understand the impacts during fertilization and the magnitude such gametic interactions have on sperm performance and subsequent male fertility potential. This study was conducted to address the following: 1) activate blue catfish sperm with/without channel catfish OF to determine impacts on sperm performance and 2) assess if sperm behave differently when activated in the OF from individual females. Sperm (n = 4 males) were activated without OF (control) and with diluted OF from unique females (n = 6), creating 24 experimental crosses. Sperm motility (%), velocity (VCL), and longevity were analyzed using computer assisted sperm analyses software. With OF incorporated in the activation media, sperm velocity was significantly higher than the control at 10, 20, and 30 s post-activation. OF did not have an impact on motility for any females at 10 s and 20 s post-activation but became significantly higher than the control at 30 s. In all cases, OF treatments greatly increased longevity. Male × female interactions were highly significant, such that motility, velocity, and longevity were dependent on specific male-female pairs. This information shows that OF should be incorporated in aquatic media to simulate natural spawning conditions and accurately assess the fluid mechanics of sperm propulsion for each male. Additionally, there are mechanisms that drive gamete interactions that need to be explored further, which may improve selection of male-female pairs for in-vitro fertilization. On a broad scale, our results also help to shed light on the complexities of fertilization and fish reproduction overall, which may have implications for recruitment variability and recovery strategies of threatened and/or endangered freshwater species.
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Affiliation(s)
- J N Myers
- School of Fisheries, Aquaculture and Aquatic Sciences, Auburn University, Auburn, AL, 36849, USA.
| | - A J Bradford
- School of Fisheries, Aquaculture and Aquatic Sciences, Auburn University, Auburn, AL, 36849, USA.
| | - V S Hallas
- School of Fisheries, Aquaculture and Aquatic Sciences, Auburn University, Auburn, AL, 36849, USA.
| | - L L Lawson
- School of Fisheries, Aquaculture and Aquatic Sciences, Auburn University, Auburn, AL, 36849, USA.
| | - T E Pitcher
- Great Lakes Institute for Environmental Research, University of Windsor, Windsor, ON N9B 3P4, Canada; Department of Biological Sciences, University of Windsor, Windsor, ON N9B 3P4, Canada.
| | - R A Dunham
- School of Fisheries, Aquaculture and Aquatic Sciences, Auburn University, Auburn, AL, 36849, USA.
| | - I A E Butts
- School of Fisheries, Aquaculture and Aquatic Sciences, Auburn University, Auburn, AL, 36849, USA.
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Viveiros ATM, Di Chiacchio IM, Almeida ILG, Leal MC. Seminal plasma features of
Prochilodus lineatus
and
Brycon orbignyanus
throughout two consecutives spawning seasons. Mol Reprod Dev 2019; 86:776-785. [DOI: 10.1002/mrd.23170] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/10/2018] [Revised: 03/27/2019] [Accepted: 04/17/2019] [Indexed: 11/07/2022]
Affiliation(s)
| | | | | | - Marcelo C. Leal
- Department of Animal SciencesFederal University of LavrasLavras Brazil
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11
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Zadmajid V, Myers JN, Sørensen SR, Ernest Butts IA. Ovarian fluid and its impacts on spermatozoa performance in fish: A review. Theriogenology 2019; 132:144-152. [PMID: 31022604 DOI: 10.1016/j.theriogenology.2019.03.021] [Citation(s) in RCA: 34] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/17/2019] [Accepted: 03/24/2019] [Indexed: 12/11/2022]
Abstract
Factors such as gamete quality can profoundly affect fertility, but the spawning micro-environment that surrounds the spermatozoa and eggs during gamete contact has largely been neglected. In fishes, understanding these gametic interactions is crucial because each female creates a unique spawning environment by simultaneously expelling her distinct ovarian fluid (OF) along with an egg batch. In turn, OF has been shown to influence spermatozoa performance traits by modifying spermatozoa behaviors and fertilization outcomes. Here, we shed light on these gametic interactions by overviewing literature on OF and how it impacts spermatozoa performance traits. Fish OF is clear or has slight coloration and can constitute ≤10-30% of egg mass. Viscosity of the OF is ∼2- to 3-fold higher than water and its pH ranges 6.2 to 8.8. Osmolality of the OF is lower in freshwater (190-322 mOsmol/kg) than marine species (289-514 mOsmol/kg). Na+ (98.3-213.7 mmol/L) and Cl- (89.8-172.7 mmol/L) are predominant ions in OF, while K+ (1.7-19.3 mmol/L), Mg2+ (0.4-8.1 mmol/L), and Ca2+(0.5-9.7 mmol/L) ions are detected at lower concentrations. Protein levels can be high in OF and exhibit intra- and inter-species variation (54-826 mg/100 mL). Fish OF also contains a series of organic components and substances that enhance and/or attract sperm towards the vicinity of an egg. OF can also differentially impact sperm based on genetic relatedness of mates, male phenotype (i.e. alternative reproductive tactics), or geographic origin. To conclude, when testing further reproductive paradigms, we suggest a shift from classic spermatozoa activation medium (water only) to more natural spawning media, which encompass OF-spermatozoa interactions.
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Affiliation(s)
- Vahid Zadmajid
- Department of Fisheries Science, Faculty of Natural Resources, University of Kurdistan, P.O. Box 416, Sanandaj, Iran
| | - Jaelen Nicole Myers
- School of Fisheries, Aquaculture and Aquatic Sciences, Auburn University, Auburn, AL, United States
| | - Sune Riis Sørensen
- National Institute of Aquatic Resources, Technical University of Denmark, Kgs., Lyngby, Denmark
| | - Ian Anthony Ernest Butts
- School of Fisheries, Aquaculture and Aquatic Sciences, Auburn University, Auburn, AL, United States.
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12
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Roufidou C, Borg B. Ovarian fluid in the three-spined stickleback Gasterosteus aculeatus: effects of egg overripening and sex steroid treatment. JOURNAL OF FISH BIOLOGY 2019; 94:446-457. [PMID: 30701549 DOI: 10.1111/jfb.13915] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/22/2017] [Accepted: 01/28/2019] [Indexed: 06/09/2023]
Abstract
The ovarian fluid properties of the three-spined stickleback Gasterosteus aculeatus were studied in overripe and non-overripe ovulated female sticklebacks and in females that were implanted with Silastic capsules containing testosterone (T), oestradiol (E2), 17,20β-dihydroxypregn-4-en-3-one (17,20β-P) or progesterone (P4) into the abdominal cavity. Overripe females had less ovarian fluid than non-overripe females, but with higher dry mass, higher protein concentration and lower viscosity. T and 17,20β-P increased the amount of ovarian fluid and the fluid protein concentration was increased by 17,20β-P. 1-D sodium dodecyl sulphate-polyacrylamide gel electrophoresis (SDS-PAGE) showed that ovarian fluid contains several proteins, with high individual variability but with no consistent differences between groups. Some of the ovarian fluid proteins appeared to correspond to proteins from the eggs. The results suggest that secretion of ovarian fluid may be influenced by steroid hormones and that changes in its properties are related to the overripening of ovulated eggs. In at least some respects it appears that the changes in the ovarian fluid is a result, rather than the cause of overripening.
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Affiliation(s)
| | - Bertil Borg
- Department of Zoology, Stockholm University, Stockholm, Sweden
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13
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Rashid I, Hossain MS, Salam MA, Rafiquzzaman SM. Evaluation of seminal plasma composition and spermatozoa quality parameters of silver barb, Barbonymus gonionotus Bleeker, 1850. FISH PHYSIOLOGY AND BIOCHEMISTRY 2019; 45:105-114. [PMID: 30047006 DOI: 10.1007/s10695-018-0539-4] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/27/2018] [Accepted: 07/05/2018] [Indexed: 06/08/2023]
Abstract
Seminal composition and semen quality are the important determinants in assessing the reproductive performance of different fishes. This study was carried out to evaluate the seminal composition and sperm quality of Barbonymus gonionotus. The seminal plasma contained 17.2 ± 0.34 mmol/l, 20.9 ± 0.48 mmol/l, 0.72 ± 0.04 mmol/l, 3.8 ± 0.2 mmol/l, and 1.49 ± 0.02 g/dl of Na+, K+, Ca++, Mg++, and total protein, respectively. The physical spermatological parameters, such as sperm volume, sperm motility, motility duration, sperm density, osmolality, and pH values were 1.55 ± 0.15 ml, 89 ± 2%, 391.9 ± 8.5 s, 2.8 ± 0.2 × 1010 /ml, 400.6 ± 5.1 mmol/kg, and 8.75 ± 0.10, respectively. In correlation matrix, the K+ (R2 = 0.39, P < 0.01) and Ca++ (R2 = 0.27, P < 0.05) ions and osmolality (R2 = 0.29, P < 0.05) showed significant positive correlations with sperm motility. Similarly, fertilization rate significantly influenced by sperm motility (R2 = 0.26, P < 0.05) and K+ (R2 = 0.30, P < 0.05) and Ca++ (R2 = 0.26, P < 0.05) ions. Also, osmolality significantly and negatively correlated with Mg++ (R2 = 0.33, P < 0.05) and sperm motility duration (R2 = 0.28, P < 0.05). Therefore, based on this results, it can be concluded that seminal plasma ions, K+ and Ca++ and osmolality are the key factors for the determination of sperm quality of silver barb, and these parameters could be considered during standardization of artificial fertilization or cryopreservation technique of silver barb spermatozoa.
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Affiliation(s)
- Ibrahim Rashid
- Department of Fisheries Biology and Aquatic Environment, Bangabandhu Sheikh Mujibur Rahman Agricultural University, Gazipur, 1706, Bangladesh
| | - Md Shakhawate Hossain
- Department of Fisheries Biology and Aquatic Environment, Bangabandhu Sheikh Mujibur Rahman Agricultural University, Gazipur, 1706, Bangladesh.
- Faculty of Fisheries and Protection of Waters, South Bohemian Research Centre of Aquaculture and Biodiversity of Hydrocenoses, University of South Bohemia in České Budějovice, Zátiší 728/II, 389 25, Vodňany, Czech Republic.
| | - Mohammad Abdus Salam
- Department of Genetics and Fish Breeding, Bangabandhu Sheikh Mujibur Rahman Agricultural University, Gazipur, 1706, Bangladesh
| | - S M Rafiquzzaman
- Department of Fisheries Biology and Aquatic Environment, Bangabandhu Sheikh Mujibur Rahman Agricultural University, Gazipur, 1706, Bangladesh
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Farhadi A, Harlıoğlu MM, Gür S, Acısu TC. Optimization of the incubation time and temperature for spermatozoa extraction in freshwater crayfish Pontastacus leptodactylus (Eschscholtz, 1823). Anim Reprod Sci 2018; 193:153-157. [PMID: 29673915 DOI: 10.1016/j.anireprosci.2018.04.063] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/26/2018] [Revised: 04/05/2018] [Accepted: 04/10/2018] [Indexed: 12/25/2022]
Abstract
Determination and control of spermatozoa quality in crustacean aquaculture is an important issue for successful and controlled reproduction. Investigation of spermatozoa number in spermatophores is a basic and common parameter for determining the reproductive quality in farmed decapods. In the present study, spermatozoa extraction from spermatophores located in the ductus deferens was conducted in Pontastacus leptodactylus using different incubation times and temperatures. The results indicate that the duration of incubation and temperature affected (P < 0.05) spermatozoa extraction. Greater temperatures (40 and 75 °C) resulted in a reduction (P < 0.05) in number of extracted spermatozoa. In contrast, more spermatozoa were extracted when the 4 and 23 °C temperatures were imposed. After 4 h of incubation, the number of extracted spermatozoa were greatest in number at 23 °C. In conclusion, the greater numbers of crayfish spermatozoa can be obtained when the ductus deferens containing spermatophores is incubated at 23 °C for 4 h as compared with other temperatures and incubation durations. The results of present study are useful for assessing spermatozoa quality in aquaculture as well as the extraction of spermatozoa for research purposes.
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Affiliation(s)
| | | | - Seyfettin Gür
- Fırat University, Veterinary Faculty, Department of Reproduction and Artificial Insemination, 23119, Elazığ, Turkey
| | - Tutku Can Acısu
- Fırat University, Veterinary Faculty, Department of Reproduction and Artificial Insemination, 23119, Elazığ, Turkey
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15
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Butts IAE, Prokopchuk G, Kašpar V, Cosson J, Pitcher TE. Ovarian fluid impacts flagellar beating and biomechanical metrics of sperm between alternative reproductive tactics. ACTA ACUST UNITED AC 2018; 220:2210-2217. [PMID: 28615489 DOI: 10.1242/jeb.154195] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/02/2016] [Accepted: 04/04/2017] [Indexed: 01/15/2023]
Abstract
Alternative reproductive tactics (ARTs) are prevalent in nature, where smaller parasitic males typically have better sperm quality than larger territorial guard males. At present, it is unclear what is causing this phenomenon. Our objective was to gain insights into sperm form and function by examining flagellar beating patterns (beat frequency, wave amplitude, bend length, bend angle, wave velocity) and biomechanical sperm metrics (velocity, hydrodynamic power output, propulsive efficiency) of wild spawning Chinook salmon ARTs. Ovarian fluid and milt were collected to form a series of eight experimental blocks, each composed of ovarian fluid from a unique female and sperm from a unique pair of parasitic jack and guard hooknose males. Sperm from each ART were activated in river water and ovarian fluid. Flagellar parameters were evaluated from recordings using high-speed video microscopy and biomechanical metrics were quantified. We show that ART has an impact on flagellar beating, where jacks had a higher bend length and bend angle than hooknoses. Activation media also impacted the pattern of flagellar parameters, such that beat frequency, wave velocity and bend angle declined, while wave amplitude of flagella increased when ovarian fluid was incorporated into activation media. Furthermore, we found that sperm from jacks swam faster than those from hooknoses and required less hydrodynamic power output to propel themselves in river water and ovarian fluid. Jack sperm were also more efficient at swimming than hooknose sperm, and propulsive efficiency increased when cells were activated in ovarian fluid. The results demonstrate that sperm biomechanics may be driving divergence in competitive reproductive success between ARTs.
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Affiliation(s)
- Ian A E Butts
- School of Fisheries, Aquaculture, and Aquatic Sciences, Auburn University, Auburn, AL 36849, USA
| | - Galina Prokopchuk
- Biology Centre, Institute of Parasitology, Czech Academy of Sciences, České Budějovice 370 05, Czech Republic
| | - Vojtěch Kašpar
- University of South Bohemia in České Budějovice, Faculty of Fisheries and Protection of Waters, South Bohemian Research Center of Aquaculture and Biodiversity of Hydrocenoses, Research Institute of Fish Culture and Hydrobiology, Vodnany 38925, Czech Republic
| | - Jacky Cosson
- University of South Bohemia in České Budějovice, Faculty of Fisheries and Protection of Waters, South Bohemian Research Center of Aquaculture and Biodiversity of Hydrocenoses, Research Institute of Fish Culture and Hydrobiology, Vodnany 38925, Czech Republic
| | - Trevor E Pitcher
- Department of Biological Sciences, University of Windsor, Windsor, ON, Canada N9B 3P4.,Great Lakes Institute for Environmental Research, University of Windsor, Windsor, ON, Canada N9B 3P4
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16
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Siddique MAM, Linhart O, Kujawa R, Krejszeff S, Butts IAE. Composition of seminal plasma and ovarian fluid in IdeLeuciscus idusand Northern pikeEsox lucius. Reprod Domest Anim 2016; 51:960-969. [DOI: 10.1111/rda.12773] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/16/2016] [Accepted: 08/02/2016] [Indexed: 01/06/2023]
Affiliation(s)
- MAM Siddique
- Faculty of Fisheries and Protection of Waters; University of South Bohemia in Ceske Budejovice; South Bohemian Research Center of Aquaculture and Biodiversity of Hydrocenoses; Research Institute of Fish Culture and Hydrobiology; Vodňany Czech Republic
| | - O Linhart
- Faculty of Fisheries and Protection of Waters; University of South Bohemia in Ceske Budejovice; South Bohemian Research Center of Aquaculture and Biodiversity of Hydrocenoses; Research Institute of Fish Culture and Hydrobiology; Vodňany Czech Republic
| | - R Kujawa
- Department of Lake and River Fisheries; Warmia and Mazury University; Olsztyn Poland
| | - S Krejszeff
- Department of Lake and River Fisheries; Warmia and Mazury University; Olsztyn Poland
| | - IAE Butts
- DTU Aqua-National Institute of Aquatic Resources; Section for Marine Ecology and Oceanography; Technical University of Denmark; Charlottenlund Denmark
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17
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Alonzo SH, Stiver KA, Marsh-Rollo SE. Ovarian fluid allows directional cryptic female choice despite external fertilization. Nat Commun 2016; 7:12452. [PMID: 27529581 PMCID: PMC4990696 DOI: 10.1038/ncomms12452] [Citation(s) in RCA: 70] [Impact Index Per Article: 8.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/02/2015] [Accepted: 07/04/2016] [Indexed: 12/11/2022] Open
Abstract
In species with internal fertilization, females can favour certain males over others, not only before mating but also within the female's reproductive tract after mating. Here, we ask whether such directional post-mating (that is, cryptic) female mate choice can also occur in species with external fertilization. Using an in vitro sperm competition experiment, we demonstrate that female ovarian fluid (ovarian fluid) changes the outcome of sperm competition by decreasing the importance of sperm number thereby increasing the relative importance of sperm velocity. We further show that ovarian fluid does not differentially affect sperm from alternative male phenotypes, but generally enhances sperm velocity, motility, straightness and chemoattraction. Under natural conditions, female ovarian fluid likely increases the paternity of the preferred parental male phenotype, as these males release fewer but faster sperm. These results imply females have greater control over fertilization and potential to exert selection on males in species with external fertilization than previously thought possible.
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Affiliation(s)
- Suzanne H. Alonzo
- Department of Ecology and Evolutionary Biology, Yale University, 165 Prospect Street, New Haven, Connecticut 06520, USA
- Department of Ecology and Evolutionary Biology, University of California Santa Cruz, 1156 High Street, Santa Cruz, California 95064, USA
| | - Kelly A. Stiver
- Department of Ecology and Evolutionary Biology, Yale University, 165 Prospect Street, New Haven, Connecticut 06520, USA
- Psychology Department, Southern Connecticut State University, 501 Crescent Street, New Haven, Connecticut 06515, USA
| | - Susan E. Marsh-Rollo
- Department of Ecology and Evolutionary Biology, University of California Santa Cruz, 1156 High Street, Santa Cruz, California 95064, USA
- Department of Psychology, Neuroscience, and Behaviour, McMaster University, 1280 Main Street W, Hamilton, Ontario, Canada L8S4K1
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18
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Beirão J, Purchase CF, Wringe BF, Fleming IA. Inter-population ovarian fluid variation differentially modulates sperm motility in Atlantic cod Gadus morhua. JOURNAL OF FISH BIOLOGY 2015; 87:54-68. [PMID: 25919195 DOI: 10.1111/jfb.12685] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/27/2014] [Accepted: 03/06/2015] [Indexed: 06/04/2023]
Abstract
This study tested the hypothesis that the effects of Atlantic cod Gadus morhua ovarian fluid on sperm motility variables are population specific. Sperm from a northern G. morhua population were activated in the presence of ovarian fluid from either northern or southern G. morhua at different concentrations. Ovarian fluid acted as a filter, in some cases reducing sperm swimming performance compared with seawater. Fluid from females foreign in population (southern) to the males (northern) had a greater inhibiting effect than those from the native population. Follow-up analysis indicated that the ovarian fluids had lower Ca(2+) concentration in northern than southern G. morhua, which could be the causative mechanism. If widespread, such cryptic female choice could reduce the incidence of intraspecific hybridization among diverged populations and contribute to reproductive isolation.
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Affiliation(s)
- J Beirão
- Fish Evolutionary Ecology Research Group, Departments of Biology and Ocean Sciences, Memorial University of Newfoundland, St John's, NL, A1C 5S7, Canada
| | - C F Purchase
- Fish Evolutionary Ecology Research Group, Departments of Biology and Ocean Sciences, Memorial University of Newfoundland, St John's, NL, A1C 5S7, Canada
| | - B F Wringe
- Fish Evolutionary Ecology Research Group, Departments of Biology and Ocean Sciences, Memorial University of Newfoundland, St John's, NL, A1C 5S7, Canada
| | - I A Fleming
- Fish Evolutionary Ecology Research Group, Departments of Biology and Ocean Sciences, Memorial University of Newfoundland, St John's, NL, A1C 5S7, Canada
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19
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Jia YD, Niu HX, Meng Z, Liu XF, Lei JL. Biochemical composition of the ovarian fluid and its effects on the fertilization capacity of turbot Scophthalmus maximus during the spawning season. JOURNAL OF FISH BIOLOGY 2015; 86:1612-1620. [PMID: 25943149 DOI: 10.1111/jfb.12676] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/17/2014] [Accepted: 02/26/2015] [Indexed: 06/04/2023]
Abstract
This study investigated the biochemical composition of ovarian fluid and its effect on the fertilization capacity of turbot Scophthalmus maximus during the spawning season. The fertilization rate and pH of ovarian fluid varied throughout the spawning season, with the highest values recorded at the mid-season. Positive correlations were found between the fertilization rate and the ovarian fluid pH. The composition of major inorganic ions (Na(+) , K(+) , Ca(2+) and Cl(-) ) showed no significant changes during the spawning season. Alkaline phosphatase (AKP) activity was significantly higher during mid-season than other seasons. The lowest levels of protein, acid phosphatase (ACP) and aspartate aminotransferase (AAT) were in the ovarian fluid released at the mid-season. Moreover, significant relationships were observed between the fertilization rate and the levels of protein, ACP, AKP and AAT. These observations suggest that the biochemical profile of ovarian fluid affects the insemination microenvironment as well as the fertilization capacity of S. maximus eggs. Determination of such profiles may prove to be a useful strategy to improve S. maximus breeding techniques.
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Affiliation(s)
- Y D Jia
- Yellow Sea Fisheries Research Institute, Chinese Academy of Fishery Sciences, Qingdao Key Laboratory for Marine Fish Breeding Biotechnology, Qingdao 266071, China
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20
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Johnson SL, Villarroel M, Rosengrave P, Carne A, Kleffmann T, Lokman PM, Gemmell NJ. Proteomic analysis of chinook salmon (Oncorhynchus tshawytscha) ovarian fluid. PLoS One 2014; 9:e104155. [PMID: 25089903 PMCID: PMC4121310 DOI: 10.1371/journal.pone.0104155] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/12/2014] [Accepted: 07/10/2014] [Indexed: 11/18/2022] Open
Abstract
The ovarian, or coelomic, fluid that is released with the egg mass of many fishes is increasingly found to play an important role in several biological processes crucial for reproductive success. These include maintenance of oocyte fertility and developmental competence, prolonging of sperm motility, and enhancing sperm swimming speed. Here we examined if and how the proteome of chinook salmon (Oncorhynchus tshawytscha) ovarian fluid varied among females and then sought to examine the composition of this fluid. Ovarian fluid in chinook salmon was analyzed using 1D SDS PAGE and LC-MS/MS tryptic digest screened against Mascot and Sequest databases. We found marked differences in the number and concentrations of proteins in salmon ovarian fluid across different females. A total of 174 proteins were identified in ovarian fluid, 47 of which were represented by six or more peptides, belonging to one of six Gene Ontology pathways. The response to chemical stimulus and response to hypoxia pathways were best represented, accounting for 26 of the 174 proteins. The current data set provides a resource that furthers our understanding of those factors that influence successful egg production and fertilisation in salmonids and other species.
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Affiliation(s)
- Sheri L. Johnson
- Allan Wilson Centre for Molecular Ecology and Evolution and Department of Anatomy, University of Otago, Dunedin, New Zealand
- Department of Zoology, University of Otago, Dunedin, New Zealand
| | - Marsha Villarroel
- Allan Wilson Centre for Molecular Ecology and Evolution and Department of Anatomy, University of Otago, Dunedin, New Zealand
| | - Patrice Rosengrave
- Allan Wilson Centre for Molecular Ecology and Evolution and Department of Anatomy, University of Otago, Dunedin, New Zealand
| | - Alan Carne
- Centre for Protein Research, Department of Biochemistry, University of Otago, Dunedin, New Zealand
| | - Torsten Kleffmann
- Centre for Protein Research, Department of Biochemistry, University of Otago, Dunedin, New Zealand
| | - P. Mark Lokman
- Department of Zoology, University of Otago, Dunedin, New Zealand
| | - Neil J. Gemmell
- Allan Wilson Centre for Molecular Ecology and Evolution and Department of Anatomy, University of Otago, Dunedin, New Zealand
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21
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Galvano PM, Johnson K, Wilson CC, Pitcher TE, Butts IA. Ovarian fluid influences sperm performance in lake trout, Salvelinus namaycush. Reprod Biol 2013; 13:172-5. [DOI: 10.1016/j.repbio.2013.02.001] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/03/2012] [Revised: 02/05/2013] [Accepted: 02/08/2013] [Indexed: 10/27/2022]
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22
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Sperm morphology, motility, and velocity in naturally occurring polyploid European weatherfish (Misgurnus fossilis L.). Theriogenology 2013; 80:153-60. [PMID: 23664795 DOI: 10.1016/j.theriogenology.2013.04.009] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/23/2012] [Revised: 03/17/2013] [Accepted: 04/04/2013] [Indexed: 11/20/2022]
Abstract
Spontaneous polyploidy has been frequently documented in various fish species. This process may lead to disruption in testicular development and function. In the present study, sperm morphology and motility, elements critical to male fertility, were characterized in the naturally occurring triploid (3n) and tetraploid (4n) European weatherfish, Misgurnus fossilis L. (Teleostei, Cobitidae) inhabiting the upper reaches of the Lužnice River in the Czech Republic. Sperm with smaller heads, shorter flagella, and a lower number of mitochondria was observed in 3n specimens compared with 4n, but no differences were observed in size of midpiece or ultrastructure of sperm. Similar to most teleosts, the European weatherfish spermatozoon lacked an acrosome and consisted of a head (containing DNA), a midpiece (containing mitochondria and proximal and distal centrioles), and a flagellum with 9 + 2 microtubular structure. Sperm velocity was significantly lower in individuals with 4n compared with 3n, whereas no difference in sperm motility was observed. The stepwise linear regression reported significant negative correlations between sperm velocity and length of sperm head (r = -0.92, P < 0.01). In conclusion, the data reported no effect of polyploidy on sperm ultrastructure and motility in the European weatherfish, although it can affect sperm velocity, possibly through differences in head size and the number of mitochondria, which provide ATP for sperm movement.
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Butts IA, Johnson K, Wilson CC, Pitcher TE. Ovarian fluid enhances sperm velocity based on relatedness in lake trout, Salvelinus namaycush. Theriogenology 2012; 78:2105-2109.e1. [DOI: 10.1016/j.theriogenology.2012.06.031] [Citation(s) in RCA: 53] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/16/2012] [Revised: 06/05/2012] [Accepted: 06/06/2012] [Indexed: 12/24/2022]
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Rosengrave P, Montgomerie R, Metcalf VJ, McBride K, Gemmell NJ. Sperm traits in Chinook salmon depend upon activation medium: implications for studies of sperm competition in fishes. CAN J ZOOL 2009. [DOI: 10.1139/z09-081] [Citation(s) in RCA: 28] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
Sperm traits of externally fertilizing fish species are typically measured in fresh (or salt) water, even though the spawning environment of their ova contains ovarian fluid. In this study, we measured sperm traits of Chinook salmon ( Oncorhynchus tshawytscha (Walbaum in Artedi, 1792)) in both fresh water and dilute ovarian fluid at 10 and 20 s postactivation, using a computer-assisted sperm analysis system. Spermatozoa swam faster, and had both higher percent motility and a straighter path trajectory for a longer period of forward motility when activated in ovarian fluid compared with activation in fresh water. Comparing sperm activity of 10 males in water versus ovarian fluid, we found a weak but significant correlation for sperm swimming speed at 10 s postactivation (r = 0.34, p = 0.01), but not for any other sperm traits measured. Most important, across males, mean sperm swimming speed in water accounted for <10% of the observed variation in mean sperm swimming speed in ovarian fluid. Thus, we argue that sperm traits measured in fresh water are not particularly relevant to those same traits during normal spawning in this species. We suggest that sperm performance measured in fresh water should be used with caution when comparing the potential for individual males to fertilize ova, especially in studies of sperm competition in externally fertilizing species.
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Affiliation(s)
- P. Rosengrave
- School of Biological Sciences, University of Canterbury, Private Bag 4800, Christchurch, 8140, New Zealand
- Department of Biology, Queen’s University, Kingston, ON K7L 3N6, Canada
| | - R. Montgomerie
- School of Biological Sciences, University of Canterbury, Private Bag 4800, Christchurch, 8140, New Zealand
- Department of Biology, Queen’s University, Kingston, ON K7L 3N6, Canada
| | - V. J. Metcalf
- School of Biological Sciences, University of Canterbury, Private Bag 4800, Christchurch, 8140, New Zealand
- Department of Biology, Queen’s University, Kingston, ON K7L 3N6, Canada
| | - K. McBride
- School of Biological Sciences, University of Canterbury, Private Bag 4800, Christchurch, 8140, New Zealand
- Department of Biology, Queen’s University, Kingston, ON K7L 3N6, Canada
| | - N. J. Gemmell
- School of Biological Sciences, University of Canterbury, Private Bag 4800, Christchurch, 8140, New Zealand
- Department of Biology, Queen’s University, Kingston, ON K7L 3N6, Canada
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