Open AccessTRANSITORY HETEROSIS IN NUMBERS OF BASAL BODIES IN TETRAHYMENA PYRIFORMIS
Author(s) -
David Nanney,
F. Paul Doerder
Publication year - 1972
Publication title -
genetics
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 2.792
H-Index - 246
eISSN - 1943-2631
pISSN - 0016-6731
DOI - 10.1093/genetics/72.2.227
Subject(s) - biology , tetrahymena pyriformis , tetrahymena , ciliata , heterozygote advantage , genetics , basal body , allele , basal (medicine) , anatomy , protozoa , gene , endocrinology , flagellum , insulin
The numbers of kinetosomes in ciliary rows on the ventral surface of cells of Tetrahymena pyriformis, syngen 1, are greater by about 10% in young heterozygotes established by crossing two inbred strains than in either homozygote. The difference, apparent at 20 fissions post-fertilization, is essentially gone by 100 fissions. This observation is consistent with a generalized "allelic exclusion" at all loci completed by perhaps 60 fissions after fertilization.