Sex determination compared in Drosophila and Caenorhabditis
β Scribed by Hodgkin, Jonathan
- Book ID
- 109763281
- Publisher
- Nature Publishing Group
- Year
- 1990
- Tongue
- English
- Weight
- 854 KB
- Volume
- 344
- Category
- Article
- ISSN
- 0028-0836
- DOI
- 10.1038/344721a0
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The signal for 'sex determination in the nematode Caenorhabditis elegans is the ratio between the number of X chromosomes and the number of sets of autosomes (the X/A ratio). Animals with an X/A ratio of 0.67 (a triploid with two X chromosomes) or less are males. Animals with an X/A ratio of 0.75 or
In Caenorhabditis elegans, sex is determined by the number of X chromosomes which, in turn, determines the expression of the X-linked gene xol-1. Recent work has shown that xol-1 expression is controlled by least two distinct regulatory mechanisms, one transcriptional and another post-transcriptiona