Results 61 to 70 of about 11,571 (204)
Tetraploidy accelerates adaptation under drug selection in a fungal pathogen
Baseline ploidy significantly impacts evolutionary trajectories and, specifically, tetraploidy is associated with higher rates of adaptation relative to haploidy and diploidy.
Ognenka Avramovska +5 more
doaj +1 more source
Role of HIV RNA structure in recombination and speciation: romping in purine A, keeps HTLV away
Extreme enrichment of the human immunodeficiency virus (HIV-1) RNA genome for the purine A parallels the mild purine-loading of the RNAs of most organisms.
Forsdyke, Donald R.
core +1 more source
ABSTRACT Parthenogenesis, or all‐female clonal reproduction, is rare among vertebrates. This is often attributed to the selective disadvantages of assumed reduction of genetic diversity in the absence of sex. However, parthenogenetic vertebrates have highly complex evolutionary histories, with most arising through hybridisation and many being polyploid.
Kate E. O'Hara +4 more
wiley +1 more source
Single locus complementary sex determination in Hymenoptera: an "unintelligent" design? [PDF]
The haplodiploid sex determining mechanism in Hymenoptera (males are haploid, females are diploid) has played an important role in the evolution of this insect order.
Beukeboom, L.W. +2 more
core +13 more sources
Interferon (IFN) therapy has been the standard of care for a variety of cancers for decades due to the pleiotropic actions of IFNs against malignancies.
Ali Razaghi +3 more
doaj +1 more source
Evolutionary algorithms in dynamic environments [PDF]
The file attached to this record is the author's final peer reviewed version.Evolutionary algorithms (EAs) are widely and often used for solving stationary optimization problems where the fitness landscape or objective function does not change during the
Wang, Dingwei +2 more
core
On the performance of a hybrid genetic algorithm in dynamic environments [PDF]
The ability to track the optimum of dynamic environments is important in many practical applications. In this paper, the capability of a hybrid genetic algorithm (HGA) to track the optimum in some dynamic environments is investigated for different ...
Yang, Zhixin, Yuan, Quan
core +3 more sources
Genome Changes After Gene Duplication: Haploidy vs. Diploidy [PDF]
Abstract Since genome size and the number of duplicate genes observed in genomes increase from haploid to diploid organisms, diploidy might provide more evolutionary probabilities through gene duplication. It is still unclear how diploidy promotes genomic evolution in detail.
Cheng, Xue +3 more
openaire +2 more sources
We assembled four Cardinium hertigii draft genomes: cEina3 causes cytoplasmic incompatibility, cEhis1 induces parthenogenesis, cEper2 is associated with parthenogenesis, and cEina2 infects asymptomatically. All four strains are closely related and hosted by Encarsia parasitoid wasps, but key differences exist, including their metabolic potential and ...
Dylan L. Schultz +6 more
wiley +1 more source
Muller's ratchet and mutational meltdowns [PDF]
We extend our earlier work on the role of deleterious mutations in the extinction of obligately asexual populations. First, we develop analytical models for mutation accumulation that obviate the need for time-consuming computer simulations in certain ...
Bürger, Reinhard +2 more
core +1 more source

