Conspecific Sperm and Pollen Precedence and Speciation
- 1 November 1999
- journal article
- Published by Annual Reviews in Annual Review of Ecology and Systematics
- Vol. 30 (1), 109-132
- https://doi.org/10.1146/annurev.ecolsys.30.1.109
Abstract
▪ Abstract The evolution of reproductive isolation is perhaps the most significant stage in the process of species formation, and the study of reproductive barriers currently dominates investigations of speciation. The discovery that conspecific sperm and pollen precedence play an important role in the reproductive isolation of some closely related animals and plants is one of the real surprises to emerge from this field in recent years. This review begins with a brief history of the study of reproductive isolation with the aim of understanding why conspecific sperm and pollen precedence were generally overlooked in early work on reproductive barriers. It then examines: case studies, the prevalence of conspecific sperm and pollen precedence, the isolating potential of this class of reproductive barriers, the mechanisms that account for the operation of these barriers, and potential explanations for the rapid divergence of populations in traits related to fertilization. Conspecific sperm and pollen precedence appear to be quite effective in limiting gene exchange; these barriers are widespread although not universal in animals and plants, and they operate through a number of different mechanisms. Much more work remains to be done on a number of fronts to elucidate the processes responsible for the evolution of these reproductive barriers.Keywords
This publication has 142 references indexed in Scilit:
- Specificity of sperm chemotaxis among great barrier reef shallow-water Holothurians and OphiuroidsJournal of Experimental Zoology, 1997
- Conflicting Morphological and Reproductive Species Boundaries in the Coral Genus PlatygyraThe Biological Bulletin, 1997
- Why do Females Make it so Difficult for Males to Fertilize their Eggs?Journal of Theoretical Biology, 1993
- Reproductive isolation inProkelisia planthoppers (Homoptera: Delphacidae): Acoustic differentiation and hybridization failureJournal of Insect Behavior, 1991
- Quantitative comparison of the passage of homologous and heterologous spermatozoa through the uterotubal junction of the golden hamsterGamete Research, 1988
- A protein from abalone sperm dissolves the egg vitelline layer by a nonenzymatic mechanismDevelopmental Biology, 1982
- Genetic Variation in Hawaiian Drosophila. V. Chromosomal and Allozymic Diversity in Drosophila silvestris and its Homosequential SpeciesEvolution, 1979
- The Genetics of Speciation in the Rodent Genus PeromyscusEvolution, 1978
- Protein Variation and Systematics in Kangaroo Rats (Genus Dipodomys)Systematic Zoology, 1971
- On the Nature of the Conditions Which Determine or Prevent the Entrance of the Spermatozoon Into the EggThe American Naturalist, 1915