BIO203_SexRepro_1

BIO203_SexRepro_1 - Proc Natl Acad Sci USA 104 3865-3870...

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1 Challenges of Sexual Reproduction • Locating a mate • Timing and synchrony • seasonal • egg and sperm readiness • Energetics and costs • germ cells • protection and rearing (days) Sherwood, Klandorf & Yancey, Animal Physiology: From Genes to Organisms , Table 16-3; C=continuous, S=seasonal, P=polyestrous, M=monoestrous, Mn=menstrual, I=induced (reflex), Sp=spontaneous Gonadal Development (Mammal) Hadley, Figure 16.3 M A L E F Sequential Events in Sex Determination Hadley, Figure 16.1
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2 Sry/SRY Determines Gonadal Sex in Mammals Hadley, Figure 16.2 A. Kobayashi & R.R. Behringer, Nature Rev. Gen. 4: 696-980, 2003 Y Chromosome and Gonadal Hormones Determine Phenotypic Sex Hadley, Figure 16.5 MIF (Mullerian duct inhibiting factor) = anti-Müllerian hormone (AMH) female-type duct system male-type duct system
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3 B.T. Lahn et al., Nature Rev. Gen. 2: 207-216, 2001, Figure 4 M. Matsuda et al .,
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Unformatted text preview: Proc. Natl. Acad. Sci. USA 104: 3865-3870, 2007, Figure 2 DMY Gene in Fishes DM = DNA-binding motif shared by: doublesex ( dsx ) in Drosophila melanogaster , and mab-3 in Caenorhabditis elegans Figure 17.20. Temperature-dependent sex determination in three reptile species: the American alligator ( Alligator mississippiensis ), the red-eared slider turtle ( Trachemys scripta elegans ), and the alligator snapping turtle ( Macroclemys temminckii ). (After Crain and Guillette 1998.) S.F. Gilbert, Developmental Biology 6/e , Figure 17.20 Environmental Sex Determination 4 C. Pieau and M. Dorizzi, J. Endocrinol. 181: 367-377, 2004, Figure 1 male-producing T female-producing T C. Pieau and M. Dorizzi, J. Endocrinol. 181: 367-377, 2004, Figure 2 J.A. Marshall Graves, Nature 461: 177-178, 2009 In birds: ZZ → male ZW → female...
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BIO203_SexRepro_1 - Proc Natl Acad Sci USA 104 3865-3870...

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