skip to main content
Show Results with:

Lineage Selection and the Maintenance of Sex

PLoS One, Jun 2013, Vol.8(6), p.e66906 [Peer Reviewed Journal]

Full text available

  • Title:
    Lineage Selection and the Maintenance of Sex
  • Author: de Vienne, Damien ; Giraud, Tatiana
  • Found In: PLoS One, Jun 2013, Vol.8(6), p.e66906 [Peer Reviewed Journal]
  • Subjects: Rotifera ; Aphidoidea ; Fungi ; Maintenance ; Evolution ; Sex ; Hypotheses ; Mutation ; Endangered & Extinct Species ; Biological Evolution ; DNA Repair ; Advantages ; Seeds ; Extinction ; Adaptation ; Insects ; Deoxyribonucleic Acid–DNA ; Sex
  • Language: English
  • Description: Sex predominates in eukaryotes, despite its short-term disadvantage when compared to asexuality. Myriad models have suggested that short-term advantages of sex may be sufficient to counterbalance its twofold costs. However, despite decades of experimental work seeking such evidence, no evolutionary mechanism has yet achieved broad recognition as explanation for the maintenance of sex. We explore here, through lineage-selection models, the conditions favouring the maintenance of sex. In the first model, we allowed the rate of transition to asexuality to evolve, to determine whether lineage selection favoured species with the strongest constraints preventing the loss of sex. In the second model, we simulated more explicitly the mechanisms underlying the higher extinction rates of asexual lineages than of their sexual counterparts. We linked extinction rates to the ecological and/or genetic features of lineages, thereby providing a formalisation of the only figure included in Darwin's “The...
  • Identifier: E-ISSN: 19326203 ; DOI: 10.1371/journal.pone.0066906

Searching Remote Databases, Please Wait