Temperature determination of male outcrossing ability in a simultaneous hermaphrodite

S. J. Schrag, A. F. Read

Research output: Contribution to journalArticlepeer-review

21 Scopus citations


Phally is a genital dimorphism found in some species of self-compatible simultaneous hermaphrodites. Both aphallics and euphallics can self-fertilize but only euphallics develop a functional penis and prostate allowing them to donate sperm. Previous studies of phally in the gastropod Bulinus truncatus (Mollusca: Pulmonata) suggest that phally may be under direct genetic control in some populations and strongly influenced by environmental factors in others. Experiments identify temperature as a cue affecting phally determination in two populations. A higher proportion of euphallics was produced at low temperature (22 ± 1°C) than at high temperature (30 ± 1°C). -from Authors

Original languageEnglish (US)
Pages (from-to)1698-1707
Number of pages10
Issue number6
StatePublished - 1992

All Science Journal Classification (ASJC) codes

  • Ecology, Evolution, Behavior and Systematics
  • Genetics
  • Agricultural and Biological Sciences(all)


Dive into the research topics of 'Temperature determination of male outcrossing ability in a simultaneous hermaphrodite'. Together they form a unique fingerprint.

Cite this