Abstract
ABSTRACT Tetraploid stocks of Caenorhabditis elegans var. Bristol carrying autosomal and X-linked markers have been produced. Tetraploid hermaphrodites fall into two categories: those that give about 1% male self-progeny and those that give 25 to 40% male self-progeny, The former are basically 4A;4X—four sets of autosomes and four sex chromosomes—and the latter are 4A;3X. Males are 4A;2X. (Diploid hermaphrodites are 2A;2X; males are 2A;IX.) Triploids wsre produced by crossing tetraploid hermaphrodites and diploid males. Triploids of composition 3A;3X are hermaphrodites; 3A;2X animals are fertile males. Different X-chromosome duplications were added to a 3A;2X chromosome constitution to increase the X-to-autosome ratio. Based on the resulting sexual phenotypes, we conclude that there exists on the C. elegans X chromosome at least three (and perhaps many mare) dose-sensitive sites that act cumulatively in determining sex.
Dates
Type | When |
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Created | 4 years, 4 months ago (April 22, 2021, 9:22 a.m.) |
Deposited | 4 years, 4 months ago (April 22, 2021, 9:22 a.m.) |
Indexed | 4 days, 1 hour ago (Aug. 28, 2025, 8:52 a.m.) |
Issued | 45 years, 11 months ago (Oct. 1, 1979) |
Published | 45 years, 11 months ago (Oct. 1, 1979) |
Published Online | 45 years, 11 months ago (Oct. 1, 1979) |
Published Print | 45 years, 11 months ago (Oct. 1, 1979) |
@article{Madl_1979, title={POLYPLOIDS AND SEX DETERMINATION IN CAENORHABDITIS ELEGANS}, volume={93}, ISSN={1943-2631}, url={http://dx.doi.org/10.1093/genetics/93.2.393}, DOI={10.1093/genetics/93.2.393}, number={2}, journal={Genetics}, publisher={Oxford University Press (OUP)}, author={Madl, James E and Herman, Robert K}, year={1979}, month=oct, pages={393–402} }