Segregation Distorter
- Pronunciation
- /SEG-guh-ga-shun dis-tor-ter/
- Category
- Genetics
- Singular
- Segregation Distorter
- Plural
- Segregation Distorters
Definition
A genetic phenomenon in which a particular chromosome, called the SD chromosome, is preferentially transmitted to offspring, resulting in an excess of the SD chromosome in the progeny.
Etymology
From the fact that it causes non-Mendelian segregation patterns during meiosis.
Example
The Segregation Distorter (SD) system in *Drosophila melanogaster* results in a biased inheritance of the SD chromosome, leading to an overrepresentation of SD progeny.
Related Terms
- Meiotic drive
- Chromosome
- Inheritance
Usage Notes
Segregation Distorters are often associated with specific genes that promote their transmission.