Access

You are not currently logged in.

Access JSTOR through your library or other institution:

login

Log in through your institution.

Journal Article

Selection on Gamete Recognition Proteins Depends on Sex, Density, and Genotype Frequency

Don R. Levitan and David L. Ferrell
Science
New Series, Vol. 312, No. 5771 (Apr. 14, 2006), pp. 267-269
Stable URL: http://www.jstor.org/stable/3846046
Page Count: 3

You can always find the topics here!

Topics: Genotypes, Spermatozoa, Evolution, Alleles, Female animals, Species, Ova, Polyspermy, Mating behavior, Gametes
Were these topics helpful?
See somethings inaccurate? Let us know!

Select the topics that are inaccurate.

Cancel
  • More info
  • Add to My Lists
  • Cite this Item
Selection on Gamete Recognition Proteins Depends on Sex, Density, and Genotype Frequency
Preview not available

Abstract

Gamete recognition proteins can evolve at astonishing rates and lie at the heart of reproductive isolation and speciation in diverse taxa. However, the source of selection driving this evolution remains unknown. We report on how the sperm bindin genotype influences reproductive success under natural conditions. An interaction between genotype frequency and spawning density determines how sperm bindin genotype influences reproductive success. Common genotypes are selected under sperm-limited conditions, whereas rare genotypes are selected under conditions of intense sperm competition and sexual conflict. Variation in the evolutionary rates of bindin may reflect historic differences in sperm availability.

Page Thumbnails

  • Thumbnail: Page 
267
    267
  • Thumbnail: Page 
268
    268
  • Thumbnail: Page 
269
    269