Abstract：
:Microbes engage in cooperative behaviours by producing and secreting public goods, the benefits of which are shared among cells, and are therefore susceptible to exploitation by nonproducing cheats. In nature, bacteria are not typically colonizing sterile, rich environments in contrast to laboratory experiments, which involve inoculating sterile culture with few bacterial cells that then race to fill the available niche. Here, we study the potential implications of this difference, using the production of pyoverdin, an iron-scavenging siderophore that acts as a public good in the bacteria Pseudomonas aeruginosa. We show that (1) nonproducers are able to invade cultures of producers when added at the start of growth or during early exponential growth phase, but not during late exponential or stationary phase; (2) the producer strain does not produce pyoverdin in the late exponential and stationary phases and so is not paying the cost of cooperating during those phases. These results suggest that whether a nonproducing mutant can invade will depend upon when the mutation arises, as well as the population structure, and raise a potential difficulty with the use of antimicrobial treatment strategies that propose to exploit the invasive abilities of cheats.
journal_name
J Evol Bioljournal_title
Journal of evolutionary biologyauthors
Ghoul M,West SA,McCorkell FA,Lee ZB,Bruce JB,Griffin ASdoi
10.1111/jeb.12904subject
Has Abstractpub_date
2016-09-01 00:00:00pages
1728-36issue
9eissn
1010-061Xissn
1420-9101journal_volume
29pub_type
杂志文章abstract：:The satyr of Greek mythology was half-man, half-goat, with an animal persona signifying immoderate sexual appetites. In biology, satyrization is the disruption of reproduction in matings between closely-related species. Interestingly, its effects are often reciprocally asymmetric, manifesting more strongly in one dire...
journal_title：Journal of evolutionary biology
pub_type： 杂志文章
doi：10.1111/jeb.13733
更新日期：2020-11-06 00:00:00
abstract：:It has often been argued that evolutionary diversification is the result of divergent natural selection for specialization on alternative resources. I provide a comprehensive review of experiments that examine the ecology and genetics of resource specialization and adaptive radiation in microbial microcosms. In these ...
journal_title：Journal of evolutionary biology
pub_type： 杂志文章,评审
doi：10.1111/j.1420-9101.2005.00931.x
更新日期：2005-11-01 00:00:00
abstract：:Switch-induced developmental plasticity, such as the diapause decision in insects, is a major form of adaptation to variable environments. As individuals that follow alternative developmental pathways will experience different selective environments the diapause decision may evolve to a cascade switch that induces add...
journal_title：Journal of evolutionary biology
pub_type： 杂志文章
doi：10.1111/j.1420-9101.2010.01994.x
更新日期：2010-06-01 00:00:00
abstract：:Recent evidence suggests that marker-based heterozygosity-fitness correlations may be driven by only one or a few markers, indicating local heterozygosity effects caused by linkage disequilibrium with functional genes. In this study, we investigated the relationship between microsatellite heterozygosity and a measure ...
journal_title：Journal of evolutionary biology
pub_type： 杂志文章
doi：10.1111/j.1420-9101.2009.01790.x
更新日期：2009-09-01 00:00:00
abstract：:The processes of island colonization and speciation are investigated through mtDNA studies on Canary Island beetles. The genus Nesotes (Coleoptera: Tenebrionidae) is represented by 19 endemic species on the Canary Islands, the majority of which are single island endemics. Nesotes conformis is the most widespread, occu...
journal_title：Journal of evolutionary biology
pub_type： 杂志文章
doi：10.1046/j.1420-9101.2001.00250.x
更新日期：2001-01-08 00:00:00
abstract：:Many species of the sexually deceptive genus Ophrys are characterized by insect-like flowers. Their form has been traditionally considered to play an important role in pollinator attraction and manipulation. Yet, the evolution of the floral form remains insufficiently understood. We hypothesize that pollinator-mediate...
journal_title：Journal of evolutionary biology
pub_type： 杂志文章
doi：10.1111/jeb.13153
更新日期：2017-11-01 00:00:00
abstract：:Sexual signalling is predicted to shape the evolution of sex-specific ornamentation, and establishing the costs and benefits of ornamentation and the information that ornamentation provides to receivers is necessary to evaluating this adaptive function. Here, we assessed the adaptive function of a common colour orname...
journal_title：Journal of evolutionary biology
pub_type： 杂志文章
doi：10.1111/jeb.12953
更新日期：2016-11-01 00:00:00
abstract：:It has been hypothesized that in ancient apomictic, nonrecombining lineages the two alleles of a single copy gene will become highly divergent as a result of the independent accumulation of mutations (Meselson effect). We used a partial sequence of the elongation factor-1alpha (ef-1alpha) and the heat shock protein 82...
journal_title：Journal of evolutionary biology
pub_type： 杂志文章
doi：10.1111/j.1420-9101.2005.00975.x
更新日期：2006-01-01 00:00:00
abstract：:The tuatara (Sphenodon punctatus) is the only living representative of Rhynchocephalia, a group of small vertebrates that originated about 250 million years ago. The tuatara has been referred to as a living fossil; however, the group to which it belongs included a much greater diversity of forms in the Mesozoic. We ex...
journal_title：Journal of evolutionary biology
pub_type： 杂志文章
doi：10.1111/j.1420-9101.2012.02595.x
更新日期：2012-11-01 00:00:00
abstract：:Androdioecy (mixtures of males and hermaphrodites) is a rare mating system in both plants and animals. Theory suggests that high levels of inbreeding depression can maintain males in androdioecious populations if hermaphrodites commonly self-fertilize. However, if inbreeding depression (delta) can be 'purged' from sel...
journal_title：Journal of evolutionary biology
pub_type： 杂志文章
doi：10.1111/j.1420-9101.2004.00712.x
更新日期：2004-05-01 00:00:00
abstract：:Genetic and phenotypic mosaics, in which various phenotypes and different genomic regions show discordant patterns of species or population divergence, offer unique opportunities to study the role of ancestral and introgressed genetic variation in phenotypic evolution. Here, we investigated the evolution of discordant...
journal_title：Journal of evolutionary biology
pub_type： 杂志文章
doi：10.1111/jeb.13401
更新日期：2019-01-01 00:00:00
abstract：:Besides several exceptions, asexual metazoans are usually viewed as ephemeral sinks for genomes, which become 'frozen' in clonal lineages after their emergence from ancestral sexual species. Here, we investigated whether and at what rate the asexuals are able to introgress their genomes back into the parental sexual p...
journal_title：Journal of evolutionary biology
pub_type： 杂志文章
doi：10.1111/jeb.12332
更新日期：2014-03-01 00:00:00
abstract：:A theoretical debate about whether parasitoids should be time or egg limited now recognizes both as feasible, and interest has turned to determining the circumstances under which each might arise in the field, and their implications for parasitoid behaviour and evolution. Egg loads of parasitoids sampled from the fiel...
journal_title：Journal of evolutionary biology
pub_type： 杂志文章
doi：10.1111/jeb.13095
更新日期：2017-07-01 00:00:00
abstract：:The expression of alternative reproductive tactics can be plastic and occur simultaneously depending on cues that vary spatially or temporally. For example, variation in resources and sexual selection intensity is expected to influence the pay-off of each tactic and shape the decision of which tactic to employ. Males ...
journal_title：Journal of evolutionary biology
pub_type： 杂志文章
doi：10.1111/jeb.13284
更新日期：2018-07-01 00:00:00
abstract：:A species' range can be limited when there is no genetic variation for a trait that allows for adaptation to more extreme environments. We study how range expansion occurs by the establishment of a new mutation that affects a quantitative trait in a spatially continuous population. The optimal phenotype for the trait ...
journal_title：Journal of evolutionary biology
pub_type： 杂志文章
doi：10.1111/j.1420-9101.2010.02195.x
更新日期：2011-03-01 00:00:00
abstract：:Many species delay development unless particular environments or rare disturbance events occur. How can such a strategy be favoured over continued development? Typically, it is assumed that continued development (e.g. germination) is not advantageous in environments that have low juvenile/seedling survival (mechanism ...
journal_title：Journal of evolutionary biology
pub_type： 杂志文章
doi：10.1111/jeb.12474
更新日期：2014-10-01 00:00:00
abstract：:Polyandry is widespread despite its costs. The sexually selected sperm hypotheses ('sexy' and 'good' sperm) posit that sperm competition plays a role in the evolution of polyandry. Two poorly studied assumptions of these hypotheses are the presence of additive genetic variance in polyandry and sperm competitiveness. U...
journal_title：Journal of evolutionary biology
pub_type： 杂志文章
doi：10.1111/jeb.12834
更新日期：2016-05-01 00:00:00
abstract：:Phenotypic divergence in allopatry can facilitate speciation by reducing the likelihood that individuals of different lineages hybridize during secondary contact. However, few studies have established the causes of reproductive isolation in the crucial early stages of secondary contact. Here, we establish behavioural ...
journal_title：Journal of evolutionary biology
pub_type： 杂志文章
doi：10.1111/jeb.12840
更新日期：2016-05-01 00:00:00
abstract：:The number of mature eggs remaining in the ovaries and the time left for oviposition determine the reproductive decisions of the hyperdiverse guild of insects that require discrete and potentially limiting resources for oviposition (such as seeds, fruits or other insects). A female may run out of eggs before all avail...
journal_title：Journal of evolutionary biology
pub_type： 杂志文章
doi：10.1111/jeb.12363
更新日期：2014-05-01 00:00:00
abstract：:We aimed at identifying the causal basis of previously shown interrelations between demographic and genetic colony structure, ecological factors and split sex ratios in the ant, Leptothorax nylanderi. Colony-level variation in sex allocation was only partly explained by annual fluctuations during eight study years and...
journal_title：Journal of evolutionary biology
pub_type： 杂志文章
doi：10.1046/j.1420-9101.2003.00562.x
更新日期：2003-07-01 00:00:00
abstract：:Despite the ubiquitous nature of sperm storage in invertebrates, relatively little is known about its costs, or the impact that immune activation can have on a female's ability to maintain viable sperm stores. We explored the effects of an immune challenge on sperm storage under food-limited and ad libitum conditions ...
journal_title：Journal of evolutionary biology
pub_type： 杂志文章
doi：10.1111/jeb.12278
更新日期：2014-01-01 00:00:00
abstract：:The action of natural selection is expected to reduce the effective population size of a nonrecombining chromosome, and this is thought to be the chief factor leading to genetic degeneration of Y-chromosomes, which cease recombining during their evolution from ordinary chromosomes. Low effective population size of Y c...
journal_title：Journal of evolutionary biology
pub_type： 杂志文章
doi：10.1111/j.1420-9101.2004.00833.x
更新日期：2005-03-01 00:00:00
abstract：:Mimetic systems allow us to address the question of whether the same genes control similar phenotypes in different species. Although widespread parallels have been found for major effect loci, much less is known about genes that control quantitative trait variation. In this study, we identify and compare the loci that...
journal_title：Journal of evolutionary biology
pub_type： 杂志文章
doi：10.1111/jeb.13704
更新日期：2020-11-01 00:00:00
abstract：:When the availability of sperm limits female reproductive success, competition for sperm, may be an important broker of sexual selection. This is because sperm limitation can increase the variance in female reproductive success, resulting in strong selection on females to compete for limited fertilization opportunitie...
journal_title：Journal of evolutionary biology
pub_type： 杂志文章
doi：10.1111/j.1420-9101.2005.00947.x
更新日期：2005-09-01 00:00:00
abstract：:Squamate embryos require weeks of high temperature to complete development, with the result that cool climatic areas are dominated by viviparous taxa (in which gravid females can sun-bask to keep embryos warm) rather than oviparous taxa (which rely on warm soil to incubate their eggs). How, then, can some oviparous ta...
journal_title：Journal of evolutionary biology
pub_type： 杂志文章
doi：10.1111/jeb.13202
更新日期：2018-01-01 00:00:00
abstract：:The skulls of animals have to perform many functions. Optimization for one function may mean another function is less optimized, resulting in evolutionary trade-offs. Here, we investigate whether a trade-off exists between the masticatory and sensory functions of animal skulls using echolocating bats as model species....
journal_title：Journal of evolutionary biology
pub_type： 杂志文章
doi：10.1111/jeb.12548
更新日期：2014-12-01 00:00:00
abstract：:Even though the importance of selection for trait evolution is well established, we still lack a functional understanding of the mechanisms underlying phenotypic selection. Because animals necessarily use their sensory system to perceive phenotypic traits, the model of sensory bias assumes that sensory systems are the...
journal_title：Journal of evolutionary biology
pub_type： 杂志文章
doi：10.1111/jeb.12234
更新日期：2013-11-01 00:00:00
abstract：:Why sexual reproduction has evolved to be such a widespread mode of reproduction remains a major question in evolutionary biology. Although previous studies have shown that increased sex and recombination can evolve in the presence of host-parasite interactions (the 'Red Queen hypothesis' for sex), many of these studi...
journal_title：Journal of evolutionary biology
pub_type： 杂志文章
doi：10.1111/j.1420-9101.2012.02468.x
更新日期：2012-04-01 00:00:00
abstract：:Post-copulatory sexual selection, in the form sperm competition, has influenced the evolution of several male reproductive traits. However, theory predicts that sperm competition would lead to trade-offs between numbers and size of spermatozoa because increased costs per cell would result in a reduction of sperm numbe...
journal_title：Journal of evolutionary biology
pub_type： 杂志文章
doi：10.1111/jeb.12698
更新日期：2015-10-01 00:00:00
abstract：:The ability of plants to respond to natural enemies might depend on the availability of genetic variation for the optimal phenotypic expression of defence. Selfing can affect the distribution of genetic variability of plant fitness, resistance and tolerance to herbivores and pathogens. The hypothesis of inbreeding dep...
journal_title：Journal of evolutionary biology
pub_type： 杂志文章
doi：10.1111/j.1420-9101.2010.02185.x
更新日期：2011-03-01 00:00:00
