Genetics of arsenic tolerance in agrostis capillaris l

Abstract

The genetic control of arsenic tolerance in Agrostis capillaris is examined by two experiments, one involving natural seed families collected from the wild and one based on the six basic generations from a cross between a tolerant plant and a non-tolerant plant. Arsenic tolerance is shown to be an inherited characteristic, the tolerant trait being dominant. Control by more than one gene locus is indicated by the data, although the number of loci involved appears to be small. The genetic architecture of this character allows for heritable variation in degree of tolerance among tolerant plants. © 1991 The Genetical Society of Great Britain.