abstract：:Meiosis in Saccharomyces yeast produces four haploid gametes that usually fuse with each other, an extreme form of self-fertilization among the products of a single meiosis known as automixis. The gametes signal to each other with sex pheromone. Better-quality gametes produce stronger signals and are preferred as mate...

journal_title：Journal of evolutionary biology

authors： Tazzyman SJ,Seymour RM,Pomiankowski A,Greig D

更新日期：2012-08-01 00:00:00

abstract：:Temperature changes in the environment, which realistically include environmental fluctuations, can create both plastic and evolutionary responses of traits. Sexes might differ in either or both of these responses for homologous traits, which in turn has consequences for sexual dimorphism and its evolution. Here, we i...

journal_title：Journal of evolutionary biology

authors： Hallsson LR,Björklund M

更新日期：2012-08-01 00:00:00

abstract：:Studies of genotype × environment interactions (G × E) and local adaptation provide critical tests of natural selection's ability to counter opposing forces such as gene flow. Such studies may be greatly facilitated in asexual species, given the possibility for experimental replication at the level of true genotypes (...

journal_title：Journal of evolutionary biology

authors： McLeod KA,Scascitelli M,Vellend M

更新日期：2012-08-01 00:00:00

abstract：:Reproduction entails costs, and disentangling the relative importance of each stage of the reproductive cycle may be important to assess the costs and benefits of different reproductive strategies. We studied the early costs of reproduction in oviparous and viviparous lizard females of the bimodal reproductive species...

journal_title：Journal of evolutionary biology

authors： Bleu J,Heulin B,Haussy C,Meylan S,Massot M

更新日期：2012-07-01 00:00:00

abstract：:In an early challenge to an aspect of Darwin's theory of natural selection, Jackson Mivart contended that milk could not have evolved 'from a scarcely nutritious fluid from an accidentally hypertrophied cutaneous gland'. The evolutionary change from a gland secretion to milk involves an increase in calcium and protein...

journal_title：Journal of evolutionary biology

authors： Holt C,Carver JA

更新日期：2012-07-01 00:00:00

abstract：:The ecological opportunities associated with transitions across the marine-freshwater interface are regarded as an important catalyst of diversification in a range of aquatic taxa. Here, we examined the role of these major habitat transitions and trophic diversification in a radiation of Australasian fishes using a ne...

journal_title：Journal of evolutionary biology

authors： Davis AM,Unmack PJ,Pusey BJ,Johnson JB,Pearson RG

更新日期：2012-06-01 00:00:00

abstract：:Mutagenic and epigenetic effects of environmental stressors and their transgenerational consequences are of interest to evolutionary biologists because they can amplify natural genetic variation. We studied the effect of parental exposure to radioactive contamination on offspring development in lesser marsh grasshoppe...

journal_title：Journal of evolutionary biology

authors： Beasley DE,Bonisoli-Alquati A,Welch SM,Møller AP,Mousseau TA

更新日期：2012-06-01 00:00:00

abstract：:Stressful situations during development can shape the phenotype for life by provoking a trade-off between development and survival. Stress hormones, mainly glucocorticoids, play an important orchestrating role in this trade-off. Hence, how stress sensitive an animal is critically determines the phenotype and ultimatel...

journal_title：Journal of evolutionary biology

authors： Almasi B,Roulin A,Korner-Nievergelt F,Jenni-Eiermann S,Jenni L

更新日期：2012-06-01 00:00:00

abstract：:Variability in the way organisms reproduce raises numerous, and still unsolved, questions in evolutionary biology. In this study, we emphasize that fungi deserve a much greater emphasis in efforts to address these questions because of their multiple advantages as model eukaryotes. A tremendous diversity of reproductiv...

journal_title：Journal of evolutionary biology

authors： Billiard S,López-Villavicencio M,Hood ME,Giraud T

更新日期：2012-06-01 00:00:00

abstract：:Theoretical models of sperm competition predict how males should allocate sperm and seminal fluid components to ejaculates according to their mating role (dominant vs. subordinate). Here, we present a detailed analysis of ejaculate expenditure according to male roles in the bank vole (Myodes glareolus). Sperm competit...

journal_title：Journal of evolutionary biology

authors： Lemaître JF,Ramm SA,Hurst JL,Stockley P

更新日期：2012-06-01 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

authors： Hodgson EE,Otto SP

更新日期：2012-04-01 00:00:00

abstract：:It is a challenge to measure sexual selection because both stochastic events (chance) and deterministic factors (selection) generate variation in individuals' reproductive success. Most researchers realize that random events ('noise') make it difficult to detect a relationship between a trait and mating success (i.e. ...

journal_title：Journal of evolutionary biology

authors： Jennions MD,Kokko H,Klug H

更新日期：2012-03-01 00:00:00

abstract：:Bitterling fishes deposit their eggs on the gills of living mussels using a long ovipositor. We examined whether ovipositor length (OL) and egg shape correlated with differences in host mussel species in the family Unionidae among populations of the tabira bitterling (Acheilognathus tabira) in Japan. Bitterling popula...

journal_title：Journal of evolutionary biology

authors： Kitamura J,Nagata N,Nakajima J,Sota T

更新日期：2012-03-01 00:00:00

abstract：:Divergent selection stemming from environmental variation may induce local adaptation and ecological speciation whereas gene flow might have a homogenizing effect. Gene flow among populations using different environments can be reduced by geographical distance (isolation-by-distance) or by divergent selection stemming...

journal_title：Journal of evolutionary biology

authors： Edelaar P,Alonso D,Lagerveld S,Senar JC,Björklund M

更新日期：2012-03-01 00:00:00

abstract：:Positive correlations between heterozygosity and fitness traits are frequently observed, and it has been hypothesized, but rarely tested experimentally, that parasites play a key role in mediating the heterozygosity-fitness association. We evaluated this hypothesis in a wild great tit (Parus major) population by testi...

journal_title：Journal of evolutionary biology

authors： Voegeli B,Saladin V,Wegmann M,Richner H

更新日期：2012-03-01 00:00:00

abstract：:Evolutionary theory predicts that herbivorous insects should lay eggs on plants in a way that reflects the suitability of each plant species for larval development. Empirical studies, however, often fail to find any relationship between an adult insect's choice of host-plant and offspring fitness, and in such cases, i...

journal_title：Journal of evolutionary biology

authors： Cunningham JP

更新日期：2012-02-01 00:00:00

abstract：:In the pill bug Armadillidium vulgare (Crustacea, Oniscidea), Wolbachia facilitates its spread through vertical transmission via the eggs by inducing feminization of genetic males. The spread of feminizing Wolbachia within and across populations is therefore expected to influence mitochondrial DNA (mtDNA) genetic stru...

journal_title：Journal of evolutionary biology

authors： Verne S,Johnson M,Bouchon D,Grandjean F

更新日期：2012-02-01 00:00:00

abstract：:Critical size at which metamorphosis is initiated represents an important checkpoint in insect development. Here, we use experimental evolution in Drosophila melanogaster to test the long-standing hypothesis that larval malnutrition should favour a smaller critical size. We report that six fly populations subject to 1...

journal_title：Journal of evolutionary biology

authors： Vijendravarma RK,Narasimha S,Kawecki TJ

更新日期：2012-02-01 00:00:00

abstract：:Theory predicts that the evolution of phenotypic plasticity depends upon cues that indicate environmental change. Predators typically induce plastic responses in prey. However, variation among populations of predators alters the frequency of predation and, possibly, the evolution of plasticity. We compared responses t...

journal_title：Journal of evolutionary biology

authors： Walsh MR,Post DM

更新日期：2012-01-01 00:00:00

abstract：:Temporal resource fluctuations could affect the strength of antagonistic coevolution through population dynamics and costs of adaptation. We studied this by coevolving the prey bacterium Serratia marcescens with the predatory protozoa Tetrahymena thermophila in constant and pulsed-resource environments for approximate...

journal_title：Journal of evolutionary biology

authors： Friman VP,Laakso J,Koivu-Orava M,Hiltunen T

更新日期：2011-12-01 00:00:00

abstract：:Sexual selection on male coloration has been implicated in the evolution of colourful species flocks of East African cichlid fish. During adaptive radiations, animals diverge in multiple phenotypic traits, but the role of physiology has received limited attention. Here, we report how divergence in physiology may contr...

journal_title：Journal of evolutionary biology

authors： Dijkstra PD,Wiegertjes GF,Forlenza M,van der Sluijs I,Hofmann HA,Metcalfe NB,Groothuis TG

更新日期：2011-12-01 00:00:00

abstract：:The utility of traits involved in resource exploitation is a central criterion for the adaptive character of radiations. Here, we test for differentiation in morphology, jaw mechanics and nutrition among species and sexes of Lake Matano's sympatric 'roundfin' sailfin silversides. The three incipient fish species diffe...

journal_title：Journal of evolutionary biology

authors： Pfaender J,Miesen FW,Hadiaty RK,Herder F

更新日期：2011-11-01 00:00:00

abstract：:Creationist literature claims that sufficient gaps in morphological continuity exist to classify dinosaurs into several distinct baramins ('created kinds'). Here, I apply the baraminological method called taxon correlation to test for morphological continuity within and between dinosaurian taxa. The results show enoug...

journal_title：Journal of evolutionary biology

authors： Senter P

更新日期：2011-10-01 00:00:00

abstract：:According to the 'pace-of-life' syndrome hypothesis, differences in resting metabolic rate (RMR) should be genetically associated with exploratory behaviour. A large number of studies reported significant heritability for both RMR and exploratory behaviour, but the genetic correlation between the two has yet to be doc...

journal_title：Journal of evolutionary biology

authors： Careau V,Thomas D,Pelletier F,Turki L,Landry F,Garant D,Réale D

更新日期：2011-10-01 00:00:00

abstract：:Male-killing bacteria are thought to persist in host populations by vertical transmission and conferring direct and/or indirect fitness benefits to their hosts. Here, we test the role of indirect fitness benefits accrued from resource reallocation in species that engage in sibling egg cannibalism. We found that a sing...

journal_title：Journal of evolutionary biology

authors： Elnagdy S,Majerus ME,Handley LJ

更新日期：2011-10-01 00:00:00

abstract：:We examine the maintenance of a plumage polymorphism, variation in plumages among the same age and sex class within a population, in a population of Swainson's Hawks. We take advantage of 32 years of data to examine two prevalent hypotheses used to explain the persistence of morphs: apostatic selection and heterozygou...

journal_title：Journal of evolutionary biology

authors： Briggs CW,Collopy MW,Woodbridge B

更新日期：2011-10-01 00:00:00

abstract：:Life history theory predicts that mothers should trade off current and future reproductive attempts to maximize lifetime fitness. When breeding conditions are favourable, mothers may either increase investment in the eggs to improve the quality of the offspring or save resources for future reproduction as the good rai...

journal_title：Journal of evolutionary biology

authors： Canestrari D,Marcos JM,Baglione V

更新日期：2011-09-01 00:00:00

abstract：:Evolutionary theories of ageing predict that life span increases with decreasing extrinsic mortality, and life span variation among queens in ant species seems to corroborate this prediction: queens, which are the only reproductive in a colony, live much longer than queens in multi-queen colonies. The latter often inh...

journal_title：Journal of evolutionary biology

authors： Schrempf A,Cremer S,Heinze J

更新日期：2011-07-01 00:00:00

abstract：:Assessing processes of geographic expansion in contact zones is a crucial step towards an accurate prediction of the evolution of species genetic diversity. The geographic distribution of cytonuclear discordance often reflects genetic introgression patterns across a species geographic range. Antirrhinum majus pseudoma...

journal_title：Journal of evolutionary biology

authors： Khimoun A,Burrus M,Andalo C,Liu ZL,Vicédo-Cazettes C,Thébaud C,Pujol B

更新日期：2011-07-01 00:00:00

abstract：:Lifespan and ageing are strongly affected by many environmental factors, but the effects of social environment on these life-history traits are not well understood. We examined effects of social interaction on age-specific mortality rate in the sexually dimorphic neriid fly Telostylinus angusticollis. We found that al...

journal_title：Journal of evolutionary biology

authors： Adler MI,Bonduriansky R

更新日期：2011-06-01 00:00:00

abstract：:Genome scans have made it possible to find outlier markers thought to have been influenced by divergent selection in almost any wild population. However, the lack of genomic information in nonmodel species often makes it difficult to associate these markers with certain genes or chromosome regions. Furthermore, the ex...

journal_title：Journal of evolutionary biology

authors： Lundberg M,Akesson S,Bensch S

更新日期：2011-06-01 00:00:00

abstract：:In a recent article, Nowak et al. claim that the mathematical basis of inclusive fitness theory does not stand to scrunity and to have found an alternative explanation for eusociality. We show that these claims are based on false premises, many of which have been exposed more than 25 years ago, such as misrepresentati...

journal_title：Journal of evolutionary biology

authors： Rousset F,Lion S

更新日期：2011-06-01 00:00:00

abstract：:Three different isolated populations of the slave-making ant Rossomyrmex minuchae, sympatric with its obligate host Proformica longiseta, are known from the high mountains of southern Spain. To test the prediction that the slave-maker and its host represent a coevolutionary geographical mosaic, we studied the variatio...

journal_title：Journal of evolutionary biology

authors： Ruano F,Devers S,Sanllorente O,Errard C,Tinaut A,Lenoir A

更新日期：2011-05-01 00:00:00

abstract：:Any population whose members are subject to extrinsic mortality should exhibit an increase in mortality with age. Nevertheless, the prevailing opinion is that populations of adult damselflies and dragonflies do not exhibit such senescence. Here, we challenge this contention by fitting a range of demographic models to ...

journal_title：Journal of evolutionary biology

authors： Sherratt TN,Hassall C,Laird RA,Thompson DJ,Cordero-Rivera A

更新日期：2011-04-01 00:00:00

abstract：:Insects harbour a wild diversity of symbionts that can spread and persist within populations by providing benefits to their host. The pea aphid Acyrthosiphon pisum maintains a facultative symbiosis with the bacterium Hamiltonella defensa, which provides enhanced resistance against the aphid parasitoid Aphidius ervi. A...

journal_title：Journal of evolutionary biology

authors： Dion E,Zélé F,Simon JC,Outreman Y

更新日期：2011-04-01 00:00:00

abstract：:Through simulation, Whitlock showed that when all the alternatives have the same effect size, the weighted z-test is superior to both unweighted z-test and Fisher's method when combining P-values from independent studies. In this paper, we show that under the same situation, the generalized Fisher method due to Lancas...

journal_title：Journal of evolutionary biology

authors： Chen Z

更新日期：2011-04-01 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

authors： Bello-Bedoy R,Núñez-Farfán J

更新日期：2011-03-01 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

authors： Behrman KD,Kirkpatrick M

更新日期：2011-03-01 00:00:00

abstract：:Mixed-genotype infections have attracted considerable attention as drivers of pathogen evolution. However, experimental approaches often overlook essential features of natural host-parasite interactions, such as host heterogeneity, or the effects of between-host selection during transmission. Here, following inoculati...

journal_title：Journal of evolutionary biology

authors： Ulrich Y,Sadd BM,Schmid-Hempel P

更新日期：2011-02-01 00:00:00

abstract：:In Adaptation and Natural Selection, George C. Williams linked the distinction between group and individual adaptation with the distinction between group and individual selection. Williams' Principle, as we will call it, says that adaptation at a level requires selection at that level. This is a necessary but not a su...

journal_title：Journal of evolutionary biology

authors： Sober E,Wilson DS

更新日期：2011-02-01 00:00:00