By M.S. Kaulenas

In retrospect, the diversity of subject matters coated during this monograph, even if forming a coherent ensemble, is so large distinctive dialogue may perhaps simply expand to 3 or 4 instances the present size. My method has been to spot the serious concerns, summarize the key accomplishments, and to signify promising avenues for destiny learn. To facilitate this sum­ mary presentation, i've got constrained the literature assessment principally to fabric released after 1970, extending to fabric showing overdue in 1990. I gratefully recognize the recommendation of many colleagues, fairly the dear criticisms of Drs. Warren Burggren, Joseph Kunkel, Randall Phillis, and John Stoffolano. I additionally desire to thank Mrs. Elizabeth Brooks for secretarial information. eventually, thank you are because of Dr. D. Czeschlik and his employees at Springer Verlag for his or her persistence and aid. Amherst, MA, October 1991 M. S. KAULENAS V Contents bankruptcy 1 creation . . . . . . . . . . . . . . . . . . . . . . . . . . . 1 bankruptcy 2 The Reproductive Elferent Duct platforms and linked buildings. improvement and Genetic regulate of Differentiation . . . . . . . . . . . . . . . . . . . . . . . . . five 2. 1 starting place of the Germ Cells and linked Cells and Tissues . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . five 2. 2 Differentiation of the Efferent Duct method and linked constructions . . . . . . . . . . . . . . . . . . . nine 2. 2. 1 The Male process . . . . . . . . . . . . . . . . . . . . . . . . . . . nine 2. 2. 2 the feminine approach . . . . . . . . . . . . . . . . . . . . . . . . . thirteen 2. three Genetic regulate of Sexual Differentiation . . . . . sixteen 2. three. 1 Daughterless. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17 2. three. 2 intercourse choice: dimension of the X:A Ratio. . . . . . . . . . . . . . . . . . . . . . . . . . 20 2. three. three intercourse deadly . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22 2. three. four Genes Controlling Somatic Sexual Differentiation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24 2. three. five Dosage reimbursement . . . . . . . . . . . . . . . . . . . . . .

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Additional resources for Insect Accessory Reproductive Structures: Function, Structure, and Development

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Mercatorum, D. melanogaster, D. hydei, D. virilis, and Zaprionius vittiger. All of these homo- and heteroplastic transplantations allow normal vitellogenesis to take place in the donor ovary. SDS-polyacrylamide gel electrophoretic analysis of the yolk proteins, which makes it possible to distinguish species-specific differences, confirmed that mature eggs contained yolk proteins exclusively of donor-specific origin. When females were used as hosts, host specific yolk proteins also became incorporated into the donor eggs.

Mutations at these loci do not affect dosage 24 compensation, suggesting that the genes act after the control of sex and dosage compensation diverges. In addition, these genes do not control sex determination in the germ line (Marsh and Wieschaus 1978; Schupbach 1982), and are essential only for normal somatic sexual differentiation. , yolk protein expression, Beloteet a1. 1985; development ofthe genitalia and analia, Wieschaus and Nothiger 1982; establishment of sex specific courtship behavior patterns, Baker and Belote 1983).

Mutations at these loci do not affect dosage 24 compensation, suggesting that the genes act after the control of sex and dosage compensation diverges. In addition, these genes do not control sex determination in the germ line (Marsh and Wieschaus 1978; Schupbach 1982), and are essential only for normal somatic sexual differentiation. , yolk protein expression, Beloteet a1. 1985; development ofthe genitalia and analia, Wieschaus and Nothiger 1982; establishment of sex specific courtship behavior patterns, Baker and Belote 1983).

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