Non-random autosome segregation: a stepping stone for the evolution of sex chromosome complexes?
| Data(s) |
2011
|
|---|---|
| Resumo |
A new study in Caenorhabditis elegans shows that homologous autosomes segregate non-randomly with the sex chromosome in the heterogametic sex. Segregation occurs according to size, small autosomes segregating with, and large autosomes segregating away from the X-chromosome. Such sex-biased transmission of autosomes could facilitate the spread of sexually antagonistic alleles whose effects favor the fitness of one sex at the expense of the other. This may provide a first step toward the evolution of new sex determination systems. |
| Identificador |
http://serval.unil.ch/?id=serval:BIB_AD5B795DF158 isbn:1521-1878 (Electronic) pmid:21154781 doi:10.1002/bies.201000106 isiid:000286399800006 |
| Idioma(s) |
en |
| Fonte |
Bioessays, vol. 33, no. 2, pp. 111-114 |
| Palavras-Chave | #Alleles; Animals; Biological Evolution; Caenorhabditis elegans/genetics; Chromosome Segregation/genetics; Drosophila melanogaster/genetics; Gene Frequency; Sex Chromosome Aberrations; Sex Determination Processes/genetics; X Chromosome/genetics; Y Chromosome/genetics |
| Tipo |
info:eu-repo/semantics/review article |
