Sex or no sex, reproduction is not the question

  title={Sex or no sex, reproduction is not the question},
  author={D. Lesbarr{\`e}res},
Thirty years after Margulis [1] proposed her theory on endosymbiosis and almost a century since Fisher’s work [2] laid the ground for the modern theory of evolution, the question surrounding the evolutionary benefit of sex is still sparking great interest [3]. Several theories have been proposed to explain the maintenance of different reproductive strategies, be it sexual or one of the different forms of asexual reproduction. However, the different challenges and costs of the former still… Expand
Adaptive Significance and Long-Term Survival of Asexual Lineages
Examination of the evolutionary history of asexual lineages reveals that evolutionary processes act through transitional stages in which even very small temporary benefits may be enough to counter the expected selective disadvantages. Expand
Have Sex or Not? Lessons from Bacteria
  • T. Lodé
  • Medicine, Biology
  • Sexual Development
  • 2012
Rather than providing selective advantages through reproduction, sex could be thought of as a series of separate events which combines step-by-step some very weak benefits of recombination, meiosis, gametogenesis and syngamy. Expand
Evidence for Ancient Horizontal Gene Acquisitions in Bdelloid Rotifers of the Genus Adineta
This chapter conducted a comparative study between these two closely related species using reciprocal best blast hits, followed by functional annotation using the GOANNA pipeline, hypothesizing that these acquisitions may have helped bdelloids to adapt to multiple food sources and to develop enhanced resistance to desiccation. Expand
Adaptive significance and long-term survival of ase xual 1 lineages 2 3
HAL is a multi-disciplinary open access archive for the deposit and dissemination of scientific research documents, whether they are published or not. The documents may come from teaching andExpand


The Evolutionary Enigma of Sex
  • S. Otto
  • Biology, Medicine
  • The American Naturalist
  • 2009
This article reviews early models to explain the evolution of sex and why they failed to do so, and clarifies the conditions that are most likely to explain why sex is so common. Expand
Independently Evolving Species in Asexual Bdelloid Rotifers
It is shown that a classic asexual clade, the bdelloid rotifers, has diversified into distinct evolutionary species and demonstrates how combined molecular and morphological analyses can shed new light on the evolutionary nature of species. Expand
Evolution of Parthenogenetic Insects
It is to be noted, however, that parthenogenesis has so far not been found in such important orders as Odonata or Hemiptera. Expand
Why sex evolved and the differences it makes.
  • S. Stearns
  • Psychology, Medicine
  • Experientia. Supplementum
  • 1987
“Nor do we know why nature should thus strive after the intercrossing of distinct individuals. We do not even in the least know the final cause of sexuality; why new beings should be produced by theExpand
The Genetical Theory of Natural Selection
PROBABLY most geneticists to-day are some-what sceptical as to the value of the mathematical treatment of their problems. With the deepest respect, and even awe, for that association of complexExpand
Sex is not a solution for reproduction: the libertine bubble theory.
  • T. Lodé
  • Biology, Medicine
  • BioEssays : news and reviews in molecular, cellular and developmental biology
  • 2011
Here, I propose a new hypothesis: sex originated from an archaic gene transfer process among prebiotic bubbles without the prerequisite for reproduction. This de-coupling from reproduction might makeExpand
Genes for breakfast: the have-your-cake-and-eat-it-too of bacterial transformation.
  • R. Redfield
  • Biology, Medicine
  • The Journal of heredity
  • 1993
The hypothesis that transformation evolved as a nutrient-uptake system is favored, especially because unrelated DNA is abundant in the environments of many naturally transformable bacteria. Expand
Symbiosis and Cell Evolution
  • 1981