Production of Macrobrachium rosenbergii in monosex populations: Yield characteristics under intensive monoculture conditions in cages

Sagi, Amir; Ra’anan, Ziva; Cohen, Dan; Wax, Yohanan

doi:10.1016/0044-8486(86)90318-2

Cited by 114 publications

(85 citation statements)

References 8 publications

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“…In Macrobrachium rosenbergii, males undergo sex reversal to females after their androgenic gland is ablated. An all-male population was generated by mating "reversal females" with normal male M. rosenbergii (Sagi et al, 1986. As the ablation or implantation of the androgenic gland during a certain stage of development can result in sex reversal to male or female Malecha et al, 1992;Manor et al, 2004), the expression pattern of androgenic gland hormone genes in crustaceans have received much attention over the past few years (Tomer et al, 2009(Tomer et al, , 2011Tomer and Sagi, 2012;Ma et al, 2013).…”

Section: Introductionmentioning

confidence: 99%

Identification of androgenic gland microRNA and their target genes to discover sex-related microRNA in the oriental river prawn, Macrobrachium nipponense

Jin¹,

Fu²,

Jiang³

et al. 2015

Genet. Mol. Res.

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ABSTRACT. The oriental river prawn, Macrobrachium nipponense, is an important aquaculture species in China. The androgenic gland produces hormones that play crucial roles in the differentiation of crustaceans to the male sex. MicroRNA (miRNA) post-transcriptionally regulates many protein-coding genes, influencing important biological and metabolic processes. However, currently, there is no published data identifying miRNA in M. nipponense. In this study, we identified novel miRNA in the androgenic gland of M. nipponense. Using the high-throughput Illumina Solexa system, 1077 miRNA were identified from small RNA libraries by aligning with the de novo androgenic gland transcriptome of M. nipponense (obtained from RNA-Seq) and the sequences in the miRBase21 database. A total of 8,248, 76,011, and 78,307 target genes were predicted in the EST and SRA sequences provided in the NCBI database, and the androgenic gland transcriptome of M. nipponense, respectively. Some potential sex-18397 Identification of androgenic gland microRNA ©FUNPEC-RP www.funpecrp.com.br Genetics and Molecular Research 14 (4): 18396-18406 (2015) related miRNA were identified based on the function of the predicted target genes. The results of our study provide new information regarding the miRNA expression in M. nipponense, which could be the basis for further genetic studies on decapod crustaceans.

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Section: Introductionmentioning

confidence: 99%

Identification of androgenic gland microRNA and their target genes to discover sex-related microRNA in the oriental river prawn, Macrobrachium nipponense

Jin¹,

Fu²,

Jiang³

et al. 2015

Genet. Mol. Res.

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“…As male prawns of the species grow faster than female prawns, it is not uncommon to find farms that hand segregate the male prawns for marketing and discard the female prawns, a method proven to increase yield and income for the growers by B60% (Nair et al, 2006). The bimodal growth pattern of M. rosenbergii, that is, male prawns growing faster than female prawns (Sagi et al, 1986), has led to the elaboration of a biotechnology for monosex population production (Aflalo et al, 2006). This biotechnology relies on a fully functional sex reversal of normal male prawns into neo-female prawns to produce all-male progeny.…”

Section: Resultsmentioning

confidence: 99%

Isolation and characterization of a female-specific DNA marker in the giant freshwater prawn Macrobrachium rosenbergii

et al. 2011

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In this study, a female-specific DNA marker in the freshwater prawn Macrobrachium rosenbergii was identified through amplified fragment length polymorphism (AFLP). The AFLPderived sequence-characterized amplified region (SCAR) marker was tested in over 200 individuals, giving reproducible sex identification. Further molecular characterization of the sex-marker's genomic region (B3 kb long) revealed the presence of tandem and inverted repeats. The B3-kb sequence was identified both in male and female prawns, but with subtle differences: a deletion of 3 bp (present in female prawn but absent in male prawn) identified upstream of the SCAR marker sequence and two female-specific single-nucleotide polymorphisms, both indicating that male prawns are homozygous, whereas female prawns are heterozygous in this locus. Fluorescent in situ hybridization showed the B3-kb sequence to be unique: to the best of our knowledge, this is the first report of a unique sex-specific sequence observed in situ in crustaceans. The sex-specific marker identified in M. rosenbergii may have considerable applied merit for crustacean culture in that it will enable the determination of genetic sex at early developmental stages when phenotypic differences are not identifiable.

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“…It has been stated that crustacean culture can be improved by selecting monosex stocks (Sagi et al 1986, Curtis and Jones 1995, Lawrence and Morrissy 1997, Lawrence et al 2000. In C. quadricarinatus, both males and females have a greater somatic growth in a monosex culture than in a mixed culture; moreover, isolated males have a significant higher growth rate than females (Curtis and Jones 1995).…”

Section: Discussionmentioning

confidence: 99%

Intersex females in the red claw crayfish, Cherax quadricarinatus (Decapoda: Parastacidae)

Vazquez

Greco

2005

RBT

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Abstract:Cherax quadricarinatus is a large freshwater crayfish species (Parastacidae) native of north-west Queensland and the Northern Territory of Australia. The species typically exhibits a gonochoristic sexual system, although in cultured populations various types of intersex individuals have been described as functional males. In the present study, the macroscopic morphology and the gonadal histology of one type of intersex are described and discussed. All intersexes having both pairs of genital openings (female and male openings) and lacking both appendix masculinae and red patches were functional females with normal ovaries and oviducts. From a histological point of view, they did not differ from normal females having previtellogenic and/or vitellogenic ovaries according to size. Rev. Biol. Trop. 55 (Suppl. 1): 25-32. Epub 2007 June, 29.

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Production of Macrobrachium rosenbergii in monosex populations: Yield characteristics under intensive monoculture conditions in cages

Cited by 114 publications

References 8 publications

Identification of androgenic gland microRNA and their target genes to discover sex-related microRNA in the oriental river prawn, Macrobrachium nipponense

Identification of androgenic gland microRNA and their target genes to discover sex-related microRNA in the oriental river prawn, Macrobrachium nipponense

Isolation and characterization of a female-specific DNA marker in the giant freshwater prawn Macrobrachium rosenbergii

Intersex females in the red claw crayfish, Cherax quadricarinatus (Decapoda: Parastacidae)

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