SEX DETERMINATION. A male-determining factor in the mosquito Aedes aegypti.
SEX DETERMINATION. A male-determining factor in the mosquito Aedes aegypti.
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DOI:
10.1126/science.aaa2850
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发表时间:
2015-06-12
期刊:
影响因子:
--
通讯作者:
Tu Z
中科院分区:
文献类型:
--
作者:
Hall AB;Basu S;Jiang X;Qi Y;Timoshevskiy VA;Biedler JK;Sharakhova MV;Elahi R;Anderson MA;Chen XG;Sharakhov IV;Adelman ZN;Tu Z
Sex determination in the mosquito Aedes aegypti is governed by a dominant male-determining factor (M factor) located within a Y chromosome–like region called the M locus. Here, we show that an M-locus gene, Nix, functions as an M factor in A. aegypti. Nix exhibits persistent M linkage and early embryonic expression, two characteristics required of an M factor. Nix knockout with clustered regularly interspaced short palindromic repeats (CRISPR)–Cas9 resulted in largely feminized genetic males and the production of female isoforms of two key regulators of sexual differentiation: doublesex and fruitless. Ectopic expression of Nix resulted in genetic females with nearly complete male genitalia. Thus, Nix is both required and sufficient to initiate male development. This study provides a foundation for mosquito control strategies that convert female mosquitoes into harmless males.
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