The evolutionary significance of variation in sperm–egg interactions

摘要: Publisher Summary In sexual reproduction, interactions between the gamete cells, be they sperm and egg or different mating types, initiate next generation, so an insight of evolutionary processes relies on understanding factors that influence these gametic interactions. This chapter focuses present state field fertilization nature sperm–egg (SEIs), with particular emphasis mechanisms have driven this important aspect life history organisms. The goal is to illustrate variation in systems at level SEIs common/disparate SEI provide evidence for significance SEIs. A detailed molecular makeup will necessary fully assess role play They contain other essential elements production a viable diploid organism carried into maternal cytoplasm during fertilization. During early embryonic development, interact variety ways. primarily initial stages near/at their surfaces ending stage first mitotic division embryo. discussed encompass those take place gametes both surfaces, near subsequently, once are inside terrestrial invertebrates.