Adaptive microgeographic differentiation of allozyme polymorphism in landsnails

E. Nevo, C. Bar-El, A. Beiles, Y. Yom-Tov

Research output: Contribution to journalArticlepeer-review


To elucidate the forees maintaining protein polymorphisms, microgeographic differentiation in proteins, encoded by 30 loci, was tested in 285 individuals comprising 3 species of landsnails in Israel. Each test consisted of 2 close subpopulations: one from the drier and warmer south-facing slope and the other from the opposite wetter and cooler north-facing slope. The 5 tests involved 2 of Buliminus labrosus in Mediterranean Count Carmel; 1 of Sphincterochila zonata in the northern, and 2 of S. prophetarum in the central Negev desert. The results indicate significant allele differences between the two slopes in several loci in each of the 5 local tests, involving primarily esterases (Est), aspartate aminotransferase (Aat) and leucine amino peptidases (Lap). The differential slope patterns appear to be adaptive, and are presumably maintained by microclimatic diversifying selection.

Original languageEnglish
Pages (from-to)61-67
Number of pages7
Issue number1
StatePublished - May 1982

ASJC Scopus subject areas

  • Animal Science and Zoology
  • Genetics
  • Plant Science
  • Insect Science


Dive into the research topics of 'Adaptive microgeographic differentiation of allozyme polymorphism in landsnails'. Together they form a unique fingerprint.

Cite this