Methods of targeting a molecule of interest to the oocyte of an animal are shown. In an embodiment the method utilizes a receptor binding region of a yolk protein precursor. In embodiment the yolk protein precursor is a YP1 sequence, functional fragment of functional variant thereof. The targeting molecule is linked to the molecule of interest. The molecule of interest may be a molecule of a gene editing system, such as CRISPR/Cas and in an embodiment comprises Cas. The methods and composition are useful for targeting a molecule of interest to an animal, such as an invertebrate or insect.

An insect gene drive system for biocontrol of a population of an insect is provided. The gene drive system includes: a) a first DNA sequence encoding a toxin under the control of a maternal germline-specific promoter active in the insect, with the first DNA sequence being linked to b) a second DNA sequence encoding an antidote under the control of an early embryo-specific promoter active in the insect. The toxin is expressed in maternal germline cells of the insect and results in maternal-effect lethality in the insect, and the antidote is expressed in embryos of the insect and counters the maternal-effect lethality. In some embodiments, the insect is Drosophila suzrukii.

A transgenic insect includes a genome which has at least one first exogenic DNA sequence, which is coded for a human membrane transporter protein. The expression of the first exogenic DNA sequence leads to a functional human membrane transporter protein in the transgenic insect.

The present invention provides for a method or methods of targeted genetic recombination or mutagenesis in a host cell or organism, and compositions useful for carrying out the method. The targeting method of the present invention exploits endogenous cellular mechanisms for homologous recombination and repair of double stranded breaks in genetic material. The present invention provides numerous improvements over previous mutagenesis methods, such advantages include that the method is generally applicable to a wide variety of organisms, the method is targeted so that the disadvantages associated with random insertion of DNA into host genetic material are eliminated, and certain embodiments require relatively little manipulation of the host genetic material for success. Additionally, it provides a method that produces organisms with specific gene modifications in a short period of time.

The present disclosure relates to the field of commercial scale production and processing of pharmaceutical liquid or solid compositions derived from insects, wherein the compositions include a purified recombinant protein, vaccine, antibody, peptide, or chemical, and where the virus includes a recombinant baculovirus. Systems and methods to produce the insects and a purified insect-derived recombinant protein, vaccine, antibody, peptide, insecticide, fungicide, or chemical within a bioreactor are also described.

Non-mammalian, transgenic animals, e.g., flies, that include a RAS transgene, are provided. Also provided are methods of using the subject transgenic non-mammalian animals to identify compounds having activity with respect to cellular proliferative, such as neoplastic, diseases.

Two or more conditional, dominant, lethal gene expression systems provide high levels of penetrance in insects. Lethality is induced at an earlier stage of development and the risk of biochemical resistance is reduced, as compared to a single insect conditional, dominant, lethal gene expression system. The invention is useful for the control of insect populations.

The present invention relates to means and methods for increasing the efficiency of recombinant protein expression and, more particularly, to means and methods for optimizing the industrial production of recombinant proteins in pyralid moths eggs (which are insect pests of stored foods), especially Mediterranean flour moth eggs (Ephestia kuehniella). Furthermore, the present invention relates to the pyralid moths eggs itself which contains a recombinant baculovirus and, infection of recombinant baculovirus into pyralid moths eggs and, transformation or transduction or transfection by recombinant baculoviruses or bacmids. In addition, it relates to an appropriate device for carrying out the method of the present invention.

Described herein are embodiments relating to manipulation of populations and sex ratio in populations through DNA sequence modifications.

The present invention relates to a method for reducing the competitive fitness of an organism hemizygous for a transgenic locus compared to the organism homozygous for the transgenic locus comprising the steps of: (a) reducing the expression of a haploinsufficient gene in the organism, wherein said reduction is conveyed by a transgenic locus in the organism; and (b) rescuing the reduced expression in the organism, wherein said rescue is conveyed by the same transgenic locus in the organism, yielding an organism which is less competitively fit if hemizygous for the transgenic locus than if homozygous for the transgenic locus. The present invention also relates to a method for decreasing the introgression of a transgenic locus in an organism into a population of otherwise interfertile sexually reproducing organisms comprising the steps of: (a) reducing the expression of a haploinsufficient gene in the organism, wherein said reduction is conveyed by a transgenic locus in the organism; (b) rescuing the reduced expression in the organism, wherein said rescue is conveyed by the same transgenic locus in the organism, and (c) using a transgenic organism obtained in step (b) in an environment comprising otherwise interfertile sexually reproducing wildtype individuals of the organism, wherein the competitive fitness of hemizygous progeny is reduced, thereby decreasing the rate of sexually reproduction and/or viability and/or the competitive fitness of hemizygous progeny. Further envisaged are corresponding genetic systems and genetically modified organisms.