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Drosophila clipped FRT (cFRT) chromosome insensitive to P transposase, generating method thereof, and application thereof
Drosophila clipped FRT (cFRT) chromosome insensitive to P transposase, generating method thereof, and application thereof
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机译:对P转座酶不敏感的果蝇剪裁的FRT(cFRT)染色体及其产生方法和应用
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摘要
A method for generating a Drosophila clipped FRT (cFRT) chromosome is provided, wherein the chromosome is incapable of reacting with a P transposase but remains capable of reacting with a yeast site-specific flippase recombinase (FLP). The method includes steps of: (a) exposing a FRT chromosome to the P transposase causing a local and imprecise transposition, wherein the FRT chromosome contains a P[FRT] insertion with a selection marker gene, (b) screening the P[FRT] insertion insensitive to the P transposase to obtain screened products, (c) selecting candidate products from the screened products by further examinations, and (d) exposing the candidate products by the P transposase and selecting a desired product by the further examinations to obtain the Drosophila clipped FRT (cFRT) chromosome incapable of reacting with the P transposase but remaining capable of reacting with the yeast site-specific flippase recombinase. The cFRT2L2R chromosome can be used as the direct target in the direct P-transposon-induced mutagenesis.
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