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EFFECT OF TEMPERATURE ON SEXUAL POPULATIONS OF GONIUM PECTORALE (VOLVOCALES)
Author(s) -
Stein Janet R.
Publication year - 1966
Publication title -
american journal of botany
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.218
H-Index - 151
eISSN - 1537-2197
pISSN - 0002-9122
DOI - 10.1002/j.1537-2197.1966.tb06855.x
Subject(s) - biology , mating type , mating , evolutionary biology , zoology , genetics , gene
Experiments were designed to study the effect of temperature on interpopulation crosses of Gonium pectorale. Both interpopulation and intrapopulation crosses were made at 10, 15, 20 and 25 C. Of the 34 populations studied, one‐third were definitely affected by temperature, showing that temperature is one factor in sexual isolation in at least some populations. Only two populations were completely incompatible with others. In some populations with both mating types, one mating type (the one designated “minus”) was found to be more compatible, possibly reflecting further genetic difference between mating types.