Inbreeding effects on reproductive traits in a breeding population of Pacific white shrimp Penaeus (Litopenaeus) vannamei

Ríos-Pérez, Lidia de los; Campos-Montes, Gabriel R.; Martínez-Ortega, Alfonso; Castillo‐Juárez, Héctor; Montaldo, Hugo H.

doi:10.1016/j.aquaculture.2017.06.013

Cited by 9 publications

(6 citation statements)

References 22 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Our results agree with those on high-fecundity marine crustaceans with indirect development (i.e. penaeid shrimps) (Moss et al, 2008;De los Ríos-Pérez et al, 2017), and low-fecundity crustaceans with direct development (i.e. terrestrial isopods) (Fortin et al, 2018).…”

Section: Offspring Productionsupporting

confidence: 90%

Brothers are better than nothing: first report of incestuous mating and inbreeding depression in a freshwater decapod crustacean

Tropea

Marciano

Greco

2022

Zoology

View full text Add to dashboard Cite

Section: Offspring Productionsupporting

confidence: 90%

Brothers are better than nothing: first report of incestuous mating and inbreeding depression in a freshwater decapod crustacean

Tropea

Marciano

Greco

2022

Zoology

View full text Add to dashboard Cite

“…This is also true of cultured shrimp exposed to mortality from pathogens experimentally (5,19) and on farms during normal operations (27). Inbreeding also has strong adverse effects on reproductive traits, as shown, for example, by De los Ríos-Pérez et al (41), for the shrimp P. (L.) vannamei.…”

Section: Inbreeding Increases Disease Losses and The Risk Of Epizooticsmentioning

confidence: 90%

Domestication and genetic improvement: balancing improved production against increased disease risks from inbreeding

Doyle¹,

Lal²,

Virapat³

2019

Rev. Sci. Tech. OIE

View full text Add to dashboard Cite

Successful selective breeding programmes have been under way in aquacultural species for many decades. Gains in growth rate as high as 900% have been reported. Programmes selecting for resistance and/or tolerance of specific pathogens have had similar success. However, no more than 10-20% of global aquaculture production is sourced from well-documented breeding programmes. Direct selection for resistance and/or tolerance in biosecure breeding programmes is difficult when classical breeding methods are used. Genomic selection is widely expected to become the most effective mode of selection against pathogens in fish and shellfish. In this paper, the authors explore the possible negative effects of genetic improvement programmes, especially those that stem from interactions between genetics and other components of the aquaculture production system, particularly disease. The main focus is the interaction between selective breeding and biosecurity. They suggest that a self-amplifying feedback loop can be created when biosecurity regulation causes a progressive reduction in genetic diversity and an increase in inbreeding, especially in smallholder hatcheries and farms in developing countries. The resulting inbreeding depression causes increased susceptibility to disease, which in turn increases the frequency and severity of epizootics. Greater losses due to disease again increase regulatory pressures and the cycle begins once more. This 'biosecurity-agro-economic-genetic' feedback loop is analogous to an 'extinction vortex' in wild populations. The authors believe that the loop can be broken by biosecure, aquacultural, genetic exchange networks, modelled on existing breed associations for terrestrial domestic animals. Such networks would constitute a global aquacultural gene pool, with enhanced environmental resilience, long-term capacity for adaptation and minimal inbreeding depression. However, such networks will also require innovative new pathogen management procedures, documentation and regulations to facilitate the exchange of broodstock and seed while still maintaining effective biosecurity.

show abstract

“…In addition, large-scale high-density culture has led to the intensification of inbreeding, resulting in the degradation of germplasm resources [ 13 ]. Research shows that inbreeding affects the reproductive characteristics of shrimp [ 14 ]. Therefore, the P. vannamei aquaculture industry is facing severe challenges [ 15 ].…”

Section: Introductionmentioning

confidence: 99%

Comparison of Growth Performance and Biochemical Components between Low-Salinity-Tolerant Hybrid and Normal Variety of Pacific White Shrimp (Penaeus vannamei)

Ye,

Zhu,

Zhang

et al. 2023

Animals

View full text Add to dashboard Cite

Penaeus vannamei, a high-yield economical shrimp, is confronting germplasm degradation in the culture environments found in China, which results in a sharp drop in production. Genetic improvement by hybridization is an effective way to solve this problem. In this study, we selected the hybrid species adapted to low-salinity culture obtained by intraspecific crossing as the experimental group. The control group consisted of normal variety from the Hainan Lutai Company. The two groups of shrimps were cultured for three months under salinities of 1 PSU, 5 PSU, and 15 PSU. Growth-performance-related indicators, biochemical composition, and molting-related gene expression were examined. The results showed that at salinities of 1 PSU and 5 PSU, the survival rate and growth performance of the low-salt breeding group were better than those of the normal variety population. The digestive enzyme activity in the low-salt breeding group was higher, which was consistent with its better growth performance, and was also associated with higher triglyceride, total cholesterol, and glycogen content. Lower levels of lactic acid indicated less anaerobic metabolism and better adaptability to the environment. The amino acid and fatty acids analysis showed that levels of essential amino acids and high unsaturated fatty acids were both higher in the low-salt breeding group than in the normal variety shrimp cultured in a low-salinity environment. The expression levels of genes associated with molting (CHS, CaMKI, RXR, EcR, HSP60, and HSP70) were also higher in the low-salt breeding group than in the control group. The results indicated that the hybrid shrimp showed better growth performance and nutritional advantages compared with the normal shrimp under salinities of 1 PSU and 5 PSU. This research provides a valuable reference for subsequent genetic breeding and shrimp culture.

show abstract

Inbreeding effects on reproductive traits in a breeding population of Pacific white shrimp Penaeus (Litopenaeus) vannamei

Cited by 9 publications

References 22 publications

Brothers are better than nothing: first report of incestuous mating and inbreeding depression in a freshwater decapod crustacean

Brothers are better than nothing: first report of incestuous mating and inbreeding depression in a freshwater decapod crustacean

Domestication and genetic improvement: balancing improved production against increased disease risks from inbreeding

Comparison of Growth Performance and Biochemical Components between Low-Salinity-Tolerant Hybrid and Normal Variety of Pacific White Shrimp (Penaeus vannamei)

Contact Info

Product

Resources

About