YY super males have better spermatic quality than XY males in red tilapia Oreochromis niloticus

Salirrosas, David; Leon, Julio; Arqueros-Avalos, Monica; Sánchez-Tuesta, Linda; Rabanal, Fernanda; Prieto, Zulita

doi:10.17268/sci.agropecu.2017.04.06

Cited by 7 publications

(11 citation statements)

References 26 publications

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“…), but for the progeny of sex‐reversed fish no such reduction has been identified (e.g., Salirrosas et al. ). Currently, the physiological performance of stocked M YY Brook Trout relative to wild males (as determined by sperm quality) is uncertain.…”

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confidence: 99%

“…In addition, the success of an M YY stocking program requires that the M YY fish mature at a high rate and spawn at a similar time as wild fish, and that the testes and milt of M YY fish perform similarly to those of their wild counterparts. Existing research suggests that sex-reversed fish have reduced reproductive abilities relative to wild males (e.g., Senior et al 2014), but for the progeny of sex-reversed fish no such reduction has been identified (e.g., Salirrosas et al 2017). Currently, the physiological performance of stocked M YY Brook Trout relative to wild males (as determined by sperm quality) is uncertain.…”

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confidence: 99%

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Survival and Reproductive Success of Hatchery YY Male Brook Trout Stocked in Idaho Streams

et al. 2018

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Nonnative Brook Trout Salvelinus fontinalis were introduced throughout western North America in the early and mid 1900s, resulting in populations that are difficult to eradicate and that often threaten native salmonids. Male YY Brook Trout (MYY), created in the hatchery by feminizing XY males and then crossing them with normal XY males, comprise a novel approach to eradicating undesirable Brook Trout populations. If stocked MYY Brook Trout survive and reproduce with wild females, it could eventually drive the wild population sex ratio to 100% males, at which point the population would be unable to reproduce and would be eradicated after stocking ceased. In this study, we stocked the limited number of catchable‐size (mean TL = 229 mm) MYY hatchery Brook Trout available from an established MYY broodstock into four streams. In two streams, the wild Brook Trout population was suppressed via electrofishing prior to stocking to determine whether diminished competition with wild fish would increase the survival of hatchery MYY fish. We used genetic assignment testing to identify the successful reproduction of stocked MYY fish. Apparent survival of MYY Brook Trout averaged 18% in streams with wild population suppression (mean suppression, 17%) and 9% in streams without suppression, suggesting that suppression of the wild population before stocking increased MYY survival poststocking. Hatchery MYY Brook Trout comprised an estimated 3.1% of all adult Brook Trout during spawning. Genetic assignment tests identified successful reproduction of MYY fish in all streams in which they were stocked, with an average of 3.7% of fry being the progeny of MYY fish. Our results confirm that hatchery MYY fish stocked in streams can survive and spawn successfully with wild fish and produce all‐male progeny. Despite the slightly reduced fitness of MYY Brook Trout, this technology may be a viable method for eradicating undesirable nonnative Brook Trout populations.

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confidence: 99%

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confidence: 99%

Survival and Reproductive Success of Hatchery YY Male Brook Trout Stocked in Idaho Streams

et al. 2018

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“…It is difficult to predict the impact of hormone use on the environment and human health. GMT is an ideal substitute for hormonal treatment and has been investigated extensively (J. Chen, Fan, Tan, Jiang, & Wang, 2018Gennotte et al, 2015;Mair et al, 1995;Salirrosas et al, 2017;Sultana et al, 2020;Sun et al, 2014). Sex-specific or sex-linked markers accelerated the development of this technology in multiple strains of Nile tilapia.…”

Section: Discussionmentioning

confidence: 99%

“…Because Marker-5 is located on the same Fosmid clone as amhy, separated by a small physical distance, it is considered as a sex-specific marker in Nile tilapia. Marker-5 and derived or similar markers have been used to test the sex genotype of laboratory strains, cultured strains, as well as wild populations (Salirrosas et al, 2017;Sissao et al, 2019;Sultana, Khan, Hossain, & Alam, 2020;Zhao et al, 2020).…”

Section: Introductionmentioning

confidence: 99%

Polymorphism in a sex‐linked DNA marker located on LG23 in Hainan strain of Nile tilapia (Oreochromis niloticus)

Jiang

Kuang

Yang³

et al. 2021

J World Aquaculture Soc

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Marker-5, which is linked to the major sex-determination gene amhy on LG23, has been used for sex genotyping of various strains of Nile tilapia. Marker-5 specifically amplifies fragments of approximately 1,422 and 982 bp of the X and Y chromosomes, respectively. Herein, we evaluated Marker-5 polymorphism in Nile tilapia of Hainan strain, China. Agarose gel electrophoresis showed that in 13 out of 85 female fish, Marker-5 amplified a larger band, distinct

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“…In terms of initial reproduction potential, gonads of sex‐reversed fish can function well. For example, M YY fish had better spermatic quality than normal XY males in Nile Tilapia Oreochromis niloticus (Salirrosas et al 2017), and F YY fish had slightly higher fecundities than standard XX females in a YY male Brook Trout broodstock (Schill et al 2016). We further assumed that both stocked and wild carp randomly selected mates in proportion to their relative abundance (Gutierrez and Teem 2006; Teem and Gutierrez 2010).…”

Section: Discussionmentioning

confidence: 99%

Simulated Use of YY Male Stocking and Suppression for Eradicating Common Carp Populations

McCormick

Schill

Meyer

2020

N American J Fish Manag

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The introduction and subsequent spread of Common Carp Cyprinus carpio throughout the world represent one of the most destructive and pervasive forces impacting aquatic ecosystems. Herein we use computer simulations to predict if stocking YY male carp in conjunction with manual netting or piscicide use could eradicate invasive Common Carp populations. Two forms of YY males were evaluated, including sperm-producing (M YY ) and egg-producing (F YY ) fish. A stochastic individual-based population model was used to evaluate the effects of simulated management actions on both the abundance and extirpation probabilities of high-and low-density populations. Results predicted that some YY male stocking scenarios alone could eradicate carp populations. For example, when stocking F YY carp into low-density populations, predicted extirpation probabilities exceeded 0.87 when stocking at least 50 carp/ha was maintained for at least 10 years. Additionally, a one-time use of rotenone (to reduce the virtual population by 90%) plus stocking at least 50 F YY carp/ha for at least 5 years into low-density populations resulted in predicted extirpation probabilities exceeding 0.88. Favorable extirpation probabilities were also obtained by combining YY male stocking and either selective (i.e., no culling of stocked YY males) or non-selective annual suppression. For example, F YY stocking with only 10% sustained, non-selective suppression yielded extinction probabilities exceeding 95% in 15 years, while increasing suppression levels to 50% resulted in extirpation probabilities over 95% within 5 years. Without exception, M YY stocking functioned far less efficiently in simulations than F YY stocking, but M YY carp did work in a small subset of low-density scenarios and may also have prophylactic utility where prior eradication has occurred and where there is a high risk of re-invasion. We conclude that stocking of YY male Common Carp is worthy of field testing, but additional simulations are needed to explore other questions not addressed in this study.

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YY super males have better spermatic quality than XY males in red tilapia Oreochromis niloticus

Cited by 7 publications

References 26 publications

Survival and Reproductive Success of Hatchery YY Male Brook Trout Stocked in Idaho Streams

Survival and Reproductive Success of Hatchery YY Male Brook Trout Stocked in Idaho Streams

Polymorphism in a sex‐linked DNA marker located on LG23 in Hainan strain of Nile tilapia (Oreochromis niloticus)

Simulated Use of YY Male Stocking and Suppression for Eradicating Common Carp Populations

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