PPT-Intra-Sexual Selection on sperm in

selfing and outcrossing caenorhabditis nematodes Mating systems Janice Hodges University of Mississippi SPUR 2016 University of Oregon Institute of Evolution and Ecology Patrick Phillips Lab. Evolutionary Mechanisms. Genetic Drift . Migration. Mutations. Natural Selection. Non-adaptive. Adaptive. Natural. . . Selection. (1) Sexual Selection. (2) Constraints on Natural Selection. Pleiotropy. Diagnostic genitalia. Sperm competition Odonata . Calopteryx. Nerve and sensory systems: signal generators, signal . receivers. Giant neurons. Cricket sound generation. Cricket sound localization. Diagnostic animal genitalia. In Birds of Prey. By: Angel Gosnell. Reverse of the norm. In normal size dimorphism, males are typically larger than females due to intrasexual selective pressures. . In RSD, females are larger than males. . 2.INTRA-PERSONALSPACEMODELING2.1.Intra-PersonalSpace(IPS)Inthispaper,weareonlyinterestedintestingthegeneral-izationcapabilityofouralgorithm.Itisourhopethatthetrainingstagecanlearntheintrinsiccharacter . tamponade. for post-partum . hemorrhage. management. A . controlled. . randmised. trial in Vietnam . ?. Ho Chi Minh Ville, . April . 2013. Working. group. :. Vietnam: Dr To Van Trung. - France: Dr Alexandre Dumont. 1. Make a Venn Diagram. 2. Asexual Reproduction. Sexual Reproduction. Both. Types of reproduction in living organisms. Asexual Reproduction. Requires only one parent. Offspring have 100% the same chromosomes as the parent.. Selection on Sperm in . Selfing (. Caenorhabditis elegans) . and . Out-Crossing (. C. . . remanei) . Mating . Systems. Janice. . M. . Hodges. 1. , . Katja. Kasimatis. 2. , Patrick C. Phillips. 2. 1. Solomon Chak. Virginia Scientists & Educators Alliance – VA SEA. 2016. I. Background. Top : . ChrisO. at . English . Wikipedia. Bottom: . Hagerty. . Ryan, U.S.FWS . , public domain. Top: Darwin . In all . species of animals, including the human species, . sexual behavior is directed by a complex interplay between . hormone . actions in the brain that give rise to sexual . arousal . and . physical experiences . Note Frame 07. Key Terms. Pistil. Embryo. Ovary. Testes. Behavioural adaptation. Stamen. Sperm. Gonads. Pollen. Physical adaptation. Sexual Reproduction. Gonads. – reproductive organs. Produce . gametes. Early Development. 1. 2. 3. 4. 5. 6. 7. 8. 9. 10. 11. 12. A. B. C. D. E. Plasma membrane. Outer . acrosomal. membrane. Acrosome. Inner . acrosomal. membrane. Nucleus. Proximal . centriole. Rest of the distal . In this case, there are different selective pressures on each SEX.. Sexual Selection . - Recognized as a deviation from predictions offered by a strict selection model.. 1. The Basics. Sexual Selection . Azoospermia. . is a condition where there is no sperm found in the ejaculate (or semen) after orgasm. Affecting about 1 in 100 of the general population—and up to 1 in 10 of men with fertility problems. Recall that sexual reproduction occurs when one haploid . –. the . sperm. . –. fuses together with. another haploid – the . egg. . . Each haploid contains . 23. chromosomes.. When they combine they produce a .