摘要:
The present invention relates to a nucleic acid molecule encoding an insulin-like factor of the androgenic gland of the freshwater prawn Macrobrachium rosenbergii (M. rosenbergii). The present invention further relates to methods of silencing the expression of the insulin-like factor gene in decapod crustaceans order, particularly in M. rosenbergii, useful for producing male monosex populations.
摘要:
Methods and constructs for genetic manipulation of one or more of shrimp, shellfish, mollusks, and fish are disclosed. The nucleic acid construct includes a promoter and an internal ribosome entry site of an insect picomavirus, such as a cricket paralysis-like picomavirus. One or more open reading frames can be operably associated with one or both of the promoter and the internal ribosome entry site, and one or more proteins or protein subunits can be expressed upon introduction of the construct into a host cell, such as into a shrimp. Method for producing immortalized crustacean cell lines using enhancer elements derived from shrimp and/or shrimp viruses are also described.
摘要:
A modified arthropod, an arthropod-modifying bacterium, and use thereof as an agent for control of diseases transmitted by arthropods, particularly mosquitoes, is provided. More specifically, an isolated arthropod-adapted Wolbachia bacterium capable of modifying one or more biological properties of a mosquito host is provided. The modified arthropod may be characterized as having a shortened life-span, a reduced ability to transmit disease, a reduced susceptibility to a pathogen, a reduced fecundity, and/or a reduced ability to feed from a host, when compared to a corresponding wild-type arthropod.
摘要:
Nucleic acid molecules encoding an insulin-like factor of the androgenic gland of the freshwater prawn Macrobrachium rosenbergii (M. rosenbergii) are disclosed. Also disclosed are methods of silencing the expression of the insulin-like factor gene in decapod crustaceans order, particularly in M. rosenbergii, useful for producing male monosex populations.
摘要:
The present invention relates to new penaeidin gene promoters found in tiger shrimps and applications thereof. The promoters of the invention are useful for the development of transgenic shrimps and valuable for the shrimp culture industry.
摘要:
The present invention relates to feedstuffs for use in aquaculture, as well as methods for producing said feedstuffs. The invention also provides methods for rearing fish and/or crustaceans. In particular, the present invention provides a method of rearing a fish or crustacean, the method comprising feeding the fish or crustacean a feedstuff comprising lipid, the fatty acid of said lipid comprising at least 5.5% (w/w) stearidonic acid (SDA).
摘要:
Methods and constructs for genetic manipulation of one or more of shrimp, shellfish, mollusks, and fish are disclosed. The nucleic acid construct includes a promoter and an internal ribosome entry site of an insect picomavirus, such as a cricket paralysis-like picomavirus. One or more open reading frames can be operably associated with one or both of the promoter and the internal ribosome entry site, and one or more proteins or protein subunits can be expressed upon introduction of the construct into a host cell, such as into a shrimp. Method for producing immortalized crustacean cell lines using enhancer elements derived from shrimp and/or shrimp viruses are also described.
摘要:
Disclosed are transgenic aquatic invertebrate for use as bioreactors to express heterologous recombinant polypeptides and its application. Also included are methods for producing transgenic Brine species and Brine cysts, and methods for expressing heterologous proteins is said cysts. The method includes introducing the foreign genes into cysts of a Brine shrimp, identification of transgenic individual and the generation of a parthenogenesis culture for transgene expression. The transgenic aquatic invertebrates described will be used as an alternative method for the low cost large-scale production of recombinant proteins, such as therapeutic proteins, polypeptide based vaccine or anti-microbial proteins, proteins for use as a food source in humans, animals and aquaculture.
摘要:
A crustacean or rotifer is infected with a recombinant infectious virus that expresses a protein exogenous to the virus. The genome of the crustacean or rotifer itself remains unaltered. Crustacean, rotifer, insect, or viral promoters drive the transcription of a gene inserted into the recombinant virus genome, and the virus replicates in the crustacean or rotifer cell cytoplasm. The infected crustacean or rotifer can be provided directly to humans or non-human animals, or, following production and harvest of the crustaceans or rotifers, purified recombinant protein or polypeptide can be provided. Large quantities of biopharmaceuticals can be produced rapidly and inexpensively using this production system.