Sex reversal and the androgenic gland (AG) in Macrobrachium rosenbergii: A review

Tan, Kianann; Jiang, Huigong; Jiang, Dong-Huo; Wang, Weimin

doi:10.1016/j.aaf.2019.11.004

Cited by 18 publications

(11 citation statements)

References 48 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…A striking feature of the giant river prawn is that males grow faster and are significantly larger than adult females. In addition, the second pair of chelipeds of males are larger and thicker than those of females, exhibiting sexual dimorphism [ 4 ]. Genetic sex determination in M. rosenbergii follows the ZW mode, and WW females can sex reverse into functional males via androgenic gland cell transplantation [ 5 ].…”

Section: Introductionmentioning

confidence: 99%

Full-Length Transcriptomes and Sex-Based Differentially Expressed Genes in the Brain and Ganglia of Giant River Prawn Macrobrachium rosenbergii

et al. 2023

View full text Add to dashboard Cite

Macrobrachium rosenbergii is an important aquaculture prawn that exhibits sexual dimorphism in growth, with males growing much faster than females. However, the mechanisms controlling these complex traits are not well understood. The nervous system plays an important role in regulating life functions. In the present work, we applied PacBio RNA-seq to obtain and characterize the full-length transcriptomes of the brains and thoracic ganglia of female and male prawns, and we performed comparative transcriptome analysis of female and male prawns. A total of 159.1-Gb of subreads were obtained with an average length of 2175 bp and 93.2% completeness. A total of 84,627 high-quality unigenes were generated and annotated with functional databases. A total of 6367 transcript factors and 6287 LncRNAs were predicted. In total, 5287 and 6211 significantly differentially expressed genes (DEGs) were found in the brain and thoracic ganglion, respectively, and confirmed by qRT-PCR. Of the 435 genes associated with protein processing pathways in the endoplasmic reticula, 42 DEGs were detected, and 21/26 DEGs with upregulated expression in the male brain/thoracic ganglion. The DEGs in this pathway are regulated by multiple LncRNAs in polypeptide folding and misfolded protein degradation in the different organs and sexes of the prawn. Our results provide novel theories and insights for studying the nervous system, sexual control, and growth dimorphism.

show abstract

Section: Introductionmentioning

confidence: 99%

Full-Length Transcriptomes and Sex-Based Differentially Expressed Genes in the Brain and Ganglia of Giant River Prawn Macrobrachium rosenbergii

et al. 2023

View full text Add to dashboard Cite

show abstract

“…Tilapias are widely raised in cages, ponds, raceways, concrete tanks, and rice elds in the majority of developing countries due to its traits that make it suitable for rearing (Christopher et al, 2021).Tilapia has several bene cial features that make it easier to grow such as an omnivorous diet, relatively disease resistant, faster growth rate, tolerant to a variety of environmental conditions such as poor water quality, they are euryhaline and can tolerate salinity up to 36 ppt, can tolerate Ph of 3.7 to 11, can survive well in between 8-24 C temperature, easy to culture, can with stand with low dissolved oxygen environment up to 0.1mg/L, can feed on natural food and even ourish on supplementary feed, delicious in taste, effective food conversion, easy reproduction and accepted by consumer make them ideal for high density aquaculture (Fregene et al 2021). It reaches sexual maturity at a young age and reproduces in the pond every 4-6 weeks.Males of Nile tilapia and giant freshwater prawn grow faster than females (Indarjo et al, 2020).Monosex stocks can be more bene cial to aquaculture because they limit undesired reproduction, reduce hostile interactions, and improve survival rates at harvest, in addition to potential growth advantages (Tan et al, 2020). In the aquaculture industry, hormonal sex reversal has been widely used to produce monosex populations.…”

Section: Introductionmentioning

confidence: 99%

Assessment of common carp testis as an alternative to 17α Methyltestosterone for sex reversal of Nile Tilapia (Oreochromisniloticus)

Asad

Tasadaq

Jamal

et al. 2022

Preprint

View full text Add to dashboard Cite

The sex reversion technique in fish is widespread in many countries. The present study aimed to produce a monosex populations of all male Nile tilapia (Oreochromis spp.) using 17α-methyltestosterone (17α-MT) and common carp testes (as a source of natural androgen). The experiment was divided into two consecutive phases, the first was fry administration with negative control (without hormone) and positive control (with hormone)feed viz.,MT1:60mg/kg, MT2:70mg/kg (17α-MT),carp testis CT1:70% and CT2:80%for 30 days to reverse the sex of male fish and second phase was nursing the fingerlings for two months on control diet (32%CP).Two hundred fry of 4–5 days old were randomly stocked in five aquariums each with one replicate (20fry/aquarium)using completely randomized design (CRD). Results revealed a significant growth rate (P < 0.05) in control group. In case of proximal chemical composition of body meat, CT2 treatment showed maximum deposition of crude protein, crude fat, and ash whereas dry matter showed maximum in MT2 and CT1 treatments. The highest male proportion (95% ± 0.58%) was recorded at 70mg/kg MT, which was significantly higher (P < 0.05) than other groups.These results suggested that synthetic and natural androgen supplementation in the diet play a significant role in improving the growth performance and body composition. Furthermore, synthetic androgen compared to natural androgens played a significant role to induce sex inversion.

show abstract

“…However, it’s not an efficient way to obtain all‐male/female individuals by manual segregation (Tan et al . 2019). Thus, a more efficient technology is required for producing monosex populations.…”

Section: Introductionmentioning

confidence: 99%

“…Procambarus clarkii) with important economic value also exhibit high invasion risk, but the risk could be largely reduced via monosex culture. However, it's not an efficient way to obtain all-male/female individuals by manual segregation (Tan et al 2019). Thus, a more efficient technology is required for producing monosex populations.…”

Section: Introductionmentioning

confidence: 99%

A sex‐reversing factor: insulin‐like androgenic gland hormone in decapods

Sun

2021

Reviews in Aquaculture

View full text Add to dashboard Cite

A large number of decapod crustaceans with sexual dimorphism in body size, most of which, are important economic animals. Besides, some of them such as the red swamp crayfish Procambarus clarkii possess strong invasive ability and would damage ecosystem environment. Thereby, monosex culture of decapods would contribute to not only increasing yield and profits, but also reducing the risks of biological invasion. Insulin-like androgenic gland hormone was reported to be a key regulator in sex differentiation. All-male populations in Macrobrachium rosenbergii were successfully produced through insulin-like androgenic gland hormone manipulation. In addition to sex differentiation, insulin-like androgenic gland hormone was reported to be involved in male secondary sex characteristics maintenance, growth, metabolism, morphology change, ovary development and other functions. Considering its important application value for decapods, insulin-like androgenic gland hormone has attracted much attention in recent years. This hormone was reported to have the structure and function similar to androgenic gland hormone of isopods. In this study, the origin of name of androgenic gland hormone and insulin-like androgenic gland hormone was investigated, and the recent research on structure, function, application and molecular regulation mechanism of insulin-like androgenic gland hormone of decapods was reviewed.

show abstract

Sex reversal and the androgenic gland (AG) in Macrobrachium rosenbergii: A review

Cited by 18 publications

References 48 publications

Full-Length Transcriptomes and Sex-Based Differentially Expressed Genes in the Brain and Ganglia of Giant River Prawn Macrobrachium rosenbergii

Full-Length Transcriptomes and Sex-Based Differentially Expressed Genes in the Brain and Ganglia of Giant River Prawn Macrobrachium rosenbergii

Assessment of common carp testis as an alternative to 17α Methyltestosterone for sex reversal of Nile Tilapia (Oreochromisniloticus)

A sex‐reversing factor: insulin‐like androgenic gland hormone in decapods

Contact Info

Product

Resources

About