Corpus ID: 83366842

Lost sex : the evolutionary biology of parthenogenesis

  title={Lost sex : the evolutionary biology of parthenogenesis},
  author={I. Sch{\"o}n and K. Martens and P. V. Dijk},
Asex and Evolution: A Very Large-Scale Overview.- The Evolution of the Problem of Sex.- Apomixis: Basics for Non-botanists.- Cytology of Asexual Animals.- A Graphical Approach to Lineage Selection Between Clonals and Sexuals.- Geographical Parthenogenesis: General Purpose Genotypes and Frozen Niche Variation.- Sex and the Red Queen.- Geographical Parthenogenesis: Opportunities for Asexuality.- The Elusive Clone - In Search of Its True Nature and Identity.- Asexual Speciation.- Darwinulid… Expand
Parthenogenetic vs. sexual reproduction in oribatid mite communities
Overall, the data showed that low density of oribatid mites due to harsh environmental conditions is associated with high frequency of parthenogenesis supporting predictions of the Structured Resource Theory of Sex rather than the Red Queen hypothesis. Expand
The role of hybridisation in the origin and evolutionary persistence of vertebrate parthenogens: a case study of Darevskia lizards
This work uses a set of microsatellite markers to characterise the origins of parthenogens in the lizard genus Darevskia, to study the distinctiveness of sexual and asexual taxa currently in sympatry, and to analyse the evolutionary consequences of interspecific hybridisation between asexual females and sexual males. Expand
The ghost sex-life of the paedogenetic beetle Micromalthus debilis
An extraordinary case where sexual adults are resurrected in a species of beetle that reproduces by parthenogenetic paedogenesis, without the production of adults, and an ancient female sex ratio bias that predates the loss of adults is suggested. Expand
Investigation of the variation and evolution of reproductive systems in Aptinothrips, a genus of grass thrips comprising four species, reveals different causes of asexuality in different species, opening new perspectives for studies on the maintenance of mixed sexual and asexual reproduction in natural populations. Expand
Evolution and comparative ecology of parthenogenesis in haplodiploid arthropods
The results strongly suggests that transitions to parthenogenesis are more frequent in large sexual populations and/or that the risk of extinction of parthenogens with large population sizes is reduced. Expand
Origin and Genetic Diversity of Diploid Parthenogenetic Artemia in Eurasia
The results indicate that there are at least two, possibly three independent and recent maternal origins of parthenogenetic lineages, related to A. urmiana and Artemia sp. Expand
Exceptional cryptic diversity and multiple origins of parthenogenesis in a freshwater ostracod.
It is argued that this may be an artefact of the existence of unsampled or extinct sexual lineages, and a revision of the single species status of E. virens is suggested. Expand
Hybrid asexuality as a primary postzygotic barrier between nascent species: On the interconnection between asexuality, hybridization and speciation
The results suggest that hybridization leads to sexual hybrids at the initial stages of speciation, but as the species diverge further, the gradual accumulation of reproductive incompatibilities between species could distort their gametogenesis towards asexuality. Expand
Apomixis as a Facilitator of Range Expansion and Diversification in Plants
A seven-step evolutionary model is presented to explain the role of sex → apomixis shifts on geographical cytotype distributions, and the potential consequences of reversals apomIXis → sex on plant diversity. Expand
Phenotypic Variation in an Asexual-Sexual Fish System: Visual Lateralization
Sexual reproduction is nearly ubiquitous in the vertebrate world, yet its evolution and maintenance remain a conundrum due to the cost of males. Conversely, asexually reproducing species should enjoyExpand