Title |
Empirical Evidence for Son-Killing X Chromosomes and the Operation of SA-Zygotic Drive
|
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Published in |
PLOS ONE, August 2011
|
DOI | 10.1371/journal.pone.0023508 |
Pubmed ID | |
Authors |
Urban Friberg, Andrew D. Stewart, William R. Rice |
Abstract |
Diploid organisms have two copies of all genes, but only one is carried by each haploid gamete and diploid offspring. This causes a fundamental genetic conflict over transmission rate between alternative alleles. Single genes, or gene clusters, only rarely code for the complex phenotypes needed to give them a transmission advantage (drive phenotype). However, all genes on a male's X and Y chromosomes co-segregate, allowing different sex-linked genes to code for different parts of the drive phenotype. Correspondingly, the well-characterized phenomenon of male gametic drive, occurring during haploid gametogenesis, is especially common on sex chromosomes. The new theory of sexually antagonistic zygotic drive of the sex chromosomes (SA-zygotic drive) extends the logic of gametic drive into the diploid phase of the lifecycle, whenever there is competition among siblings or harmful sib-sib mating. The X and Y are predicted to gain a transmission advantage by harming offspring of the sex that does not carry them. |
X Demographics
Geographical breakdown
Country | Count | As % |
---|---|---|
United States | 1 | 100% |
Demographic breakdown
Type | Count | As % |
---|---|---|
Scientists | 1 | 100% |
Mendeley readers
Geographical breakdown
Country | Count | As % |
---|---|---|
United States | 4 | 16% |
Netherlands | 1 | 4% |
Germany | 1 | 4% |
Unknown | 19 | 76% |
Demographic breakdown
Readers by professional status | Count | As % |
---|---|---|
Researcher | 6 | 24% |
Student > Master | 5 | 20% |
Student > Ph. D. Student | 3 | 12% |
Student > Doctoral Student | 2 | 8% |
Student > Bachelor | 2 | 8% |
Other | 4 | 16% |
Unknown | 3 | 12% |
Readers by discipline | Count | As % |
---|---|---|
Agricultural and Biological Sciences | 15 | 60% |
Biochemistry, Genetics and Molecular Biology | 3 | 12% |
Social Sciences | 2 | 8% |
Psychology | 1 | 4% |
Environmental Science | 1 | 4% |
Other | 0 | 0% |
Unknown | 3 | 12% |