𝔖 Bobbio Scriptorium
✦   LIBER   ✦

A Model of Asexuality and Clonal Diversity: Cloning the Red Queen

✍ Scribed by Olivia P. Judson

Publisher
Elsevier Science
Year
1997
Tongue
English
Weight
222 KB
Volume
186
Category
Article
ISSN
0022-5193

No coin nor oath required. For personal study only.

✦ Synopsis

Given benefits of sexual reproduction, the long-term persistence of asexual lineages is hard to explain. The Red Queen-which states that sex is maintained by coevolutionary interactions between hosts and their harmful parasites-is one theory that can account for both the prevalence of sexual reproduction and the occasional persistence of long-term asexual reproduction. In this paper, I present a model to analyse the population structures of asexual populations under the Red Queen. The results of the model show that the long-term persistence of asexuality results in two distinct (and genetically diverse) population structures. These may be useful in predicting patterns of dispersal of ancient asexual organisms. Further, the results show in detail how it is that the long-term persistence of asexuality is compatible with the Red Queen theory of the maintenance of sexual reproduction in populations.

πŸ“œ SIMILAR VOLUMES

A Lotka–Volterra Model of Coexistence be
A Lotka–Volterra Model of Coexistence between a Sexual Population and Multiple Asexual Clones
✍ GRAEME E. POUND; C. PATRICK DONCASTER; SIMON J. COX πŸ“‚ Article πŸ“… 2002 πŸ› Elsevier Science 🌐 English βš– 360 KB

At carrying capacity, small advantages in competitive ability can compensate a sexual population for its two-fold disadvantage in growth capacity when facing invasion by asexual mutants. In this paper, we develop a generic analytical model to consider the ecology of a sexual population comprising eq

Cloning and characterization of the nucl
Cloning and characterization of the nuclear gene and cDNAs for triosephosphate isomerase of the marine red algaGracilaria verrucosa
✍ Yi-Hong Zhou; Mark A. Ragan πŸ“‚ Article πŸ“… 1995 πŸ› Springer-Verlag 🌐 English βš– 747 KB

cDNAs and an intronless single-copy nuclear gene (TPI1) encoding triosephosphate isomerase have been cloned and sequenced from the marine red alga Gracilaria verrucosa. The predicted amino-acid sequence of TPI1 is readily alignable with those of other known TPIs; 26 of 27 active-site residues and 19

Application of oncogenetic trees mixture
Application of oncogenetic trees mixtures as a biostatistical model of the clonal cytogenetic evolution of meningiomas
✍ Ralf Ketter; Steffi Urbschat; Wolfram Henn; Wolfgang Feiden; Niko Beerenwinkel; πŸ“‚ Article πŸ“… 2007 πŸ› John Wiley and Sons 🌐 French βš– 400 KB

## Abstract Meningiomas are mostly benign tumors that originate from the coverings of brain and spinal cord. Typically, they reveal a normal karyotype or monosomy for chromosome 22. Rare clinical progression of meningiomas is associated with a nonrandom pattern of secondary losses of other autosome