• Corpus ID: 14507190

Evolutionof genetic redundancy

  title={Evolutionof genetic redundancy},
  author={Martin A. Nowak and Maarten Chris Boerlijst and Jonathan Cooke and John M Smith},
1. Janzen, D. H. Coevolution of mutualism between ants and Acacia in Central America. Evolution 20, 249–275 (1966). 2. Hocking, B. Insect associations with the swollen-thorn acacias. Trans. R. Ent. Soc. Lond. 122, 211–255. 3. Knox, R. B., Marginson, R., Kenrick, J. & Beattie, A. J. in Insects and the Plant Surface (eds Juniper, B. E. & Southwood, T. R. E.) 295–307 (Arnold, London, 1986). 4. Del-Claro, K., Berto, V. & Reu, W. Effect of herbivore deterrence by ants on the fruit set of an… 

Figures from this paper

JEZ 2024 Epigenetic Mechanisms of Character Origination

It is proposed that the correlation of an organism’s form with its genotype, rather than being a defining condition of morphological evolution, is a highly derived property, which implies that other causal determinants of biological morphogenesis have been active over the course of evolution, and that a theory of Morphological evolution based on neoDarwinian mechanisms alone must remain incomplete.

The evolution of the vertebrate beta globin gene family

The impact of amino acid changes in the hemoglobin protein is evaluated in terms of structural and functional constraints and the role of positive selection on the protein products of these genes is explored.

Targeted deletion of Aqp4 promotes the formation of astrocytic gap junctions

The findings suggest that AQP4 KO leads to increased aggregation of Cx43 into gap junctions and provide a putative mechanistic basis for the enhanced tracer coupling in hippocampi of AQP 4 KO mice.



Pollination, breeding system and seed abortion in some African acacias

Studies of the flower visitors and pollination ecology of Acacia albida, A. senegal and A. nilotica in Senegal and Kenya showed a high diversity of floral foragers, and Acacia tortilis was almost exclusively outcrossed, indicating selective seed abortion.

Effect of herbivore deterrence by ants on the fruit set of an extrafloral nectary plant, Qualea

The role of EFNs acting against herbivores is still under discussion, and plants bearing EFNs may account for up to 31% of the woody individuals and 25% in the cerrado community of Brazil (Oliveira & Oliveira-Filho 1991).

Daily partitioning of pollinators in an African Acacia community

  • G. StoneP. WillmerS. Nee
  • Environmental Science
    Proceedings of the Royal Society of London. Series B: Biological Sciences
  • 1996
Evidence is provided for diurnal partitioning of both floral resources and pollinator visitation in an African Acacia community by species to flower simultaneously, but with pollen release structured on a diurnal timescale.

Ants on swollen-thorn acacias: species coexistence in a simple system

On the black cotton soils of the Laikipia ecosystem in Kenya, two swollen-thorn acacia species support nine ant species, four of which are apparently obligate plant-ants, which are examples of coexisting diversity on an apparently uniform resource.

Evolution of genetic redundancy for advanced players.

  • G. Dover
  • Biology
    Current opinion in genetics & development
  • 1993


Monte Carlo simulations are used to examine the effect of isolation by distance on the variation maintained by mutation in a polygenic trait subject to optimizing selection and provide a rough picture of how selection and the dispersal pattern influence the spatial distribution of genetic and phenotypic variation.

Rate of gene silencing at duplicate loci: a theoretical study and interpretation of data from tetraploid fishes.

A large-scale simulation has been conducted on the rate of gene loss at duplicate loci under irreversible mutation. It is found that tight linkage does not provide a strong sheltering effect, as

Protein polymorphism and the rate of loss of duplicate gene expression

The rate of loss for different proteins following tetraploidy in two independent groups of fish is positively correlated with the tendency for particular proteins to be polymorphic in natural populations of animals, predicted by the ‘neutralist’ hypothesis of protein polymorphism.

Gene duplication in tetraploid fish: model for gene silencing at unlinked duplicated loci.

A computer simulation of genetic drift affords direct evaluation of the effects of population size, mutation rate, initial allele frequencies, back mutation, fitness, and time on the probability of fixation for null alleles at unlinked duplicate loci and shows that, under most conditions for populations of 2000--3000 or larger, unlinked duplication loci will be sustained in the functional state longer than tandem (linked) duplicates and hence are available for evolution of new functions for a longer time.

Linking Herbivory and Pollination: Defoliation and Selective Fruit Abortion in Lindera Benzoin

Although defoliation increased abortion rate, it did not increase selectivity based on pollen tube number, and when resources were depleted at the branch level, the position of the flower along the branch influenced whether a flower matured a fruit.