Abstract:
:Different evolutionary interests between males and females can lead to the evolution of sexual dimorphism. However, intersex genetic correlations due to the shared genome can constrain the evolution of sexual dimorphism, resulting in intra-locus sexual conflict. One of the mechanisms resolving this conflict is sex linkage, which allows males and females to carry different alleles on sex chromosomes. Another is a regulatory mutation causing sex-biased gene expression, which is often mediated by gonadal steroids in vertebrates. How do these two mechanisms differ in the contributions to the resolution of intra-locus sexual conflict? The magnitude of sexual conflict often varies between the juvenile and adult stages. Because gonadal steroids change in titre during development, we hypothesized that gonadal steroids play a role in sexual dimorphism expression only at certain developmental stages, whereas sex linkage is more important for sexual dimorphism expressed throughout life. Our brain transcriptome analysis of juvenile and adult threespine sticklebacks showed that the majority of genes that were sex-biased in both stages were sex-linked. The relative contribution of androgen-dependent regulation to the sex-biased transcriptome increased and that of sex linkage declined in adults compared to juveniles. The magnitude of the sex differences was greater in sex-linked genes than androgen-responsive genes, suggesting that sex linkage is more effective than androgen regulation in the production of large sex differences in gene expression. Overall, our data are consistent with the hypothesis that sex linkage is effective in resolving sexual conflict throughout life, whereas androgen-dependent regulation can contribute to temporary resolution of sexual conflict.
journal_name
J Evol Bioljournal_title
Journal of evolutionary biologyauthors
Kitano J,Kakioka R,Ishikawa A,Toyoda A,Kusakabe Mdoi
10.1111/jeb.13662subject
Has Abstractpub_date
2020-06-13 00:00:00eissn
1010-061Xissn
1420-9101pub_type
杂志文章abstract::The length of the favourable season determines voltinism in insect populations. In some insects, there is variation in fecundity and timing of reproduction among females. If the length of the favourable season does not allow all offspring to develop into adults without diapause, the benefits of high early fecundity ma...
journal_title:Journal of evolutionary biology
pub_type: 杂志文章
doi:10.1111/j.1420-9101.2008.01597.x
更新日期:2008-11-01 00:00:00
abstract::Fine scale spatial structure (FSSS) of cytoplasmic genes in plants is thought to be generated via founder events and can be amplified when seeds germinate close to their mother. In gynodioecious species these processes are expected to generate FSSS in sex ratio because maternally inherited cytoplasmic male sterility g...
journal_title:Journal of evolutionary biology
pub_type: 杂志文章
doi:10.1111/j.1420-9101.2006.01103.x
更新日期:2006-07-01 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
pub_type: 杂志文章
doi:10.1111/j.1420-9101.2011.02379.x
更新日期:2011-12-01 00:00:00
abstract::The presence of phylogenetic signal is assumed to be ubiquitous. However, for microorganisms, this may not be true given that they display high physiological flexibility and have fast regeneration. This may result in fundamentally different patterns of resemblance, that is, in variable strength of phylogenetic signal....
journal_title:Journal of evolutionary biology
pub_type: 杂志文章
doi:10.1111/jeb.12401
更新日期:2014-06-01 00:00:00
abstract::Ecological speciation occurs when populations evolve reproductive isolation as a result of divergent natural selection. This isolation can be influenced by many potential reproductive barriers, including selection against hybrids, selection against migrants and assortative mating. How and when these barriers act and i...
journal_title:Journal of evolutionary biology
pub_type: 杂志文章
doi:10.1111/jeb.12978
更新日期:2016-12-01 00:00:00
abstract::Post-meiotic sperm ageing, both before ejaculation and after ejaculation, has been shown to negatively affect offspring fitness by lowering the rate of embryonic development, reducing embryonic viability and decreasing offspring condition. These negative effects are thought to be caused by intrinsic factors such as ox...
journal_title:Journal of evolutionary biology
pub_type: 杂志文章
doi:10.1111/jeb.13590
更新日期:2020-05-01 00:00:00
abstract::In a simulation model we investigated how much of the initial genetic variation that is retained in a population after a dominant mutation has brought apomixis to fixation in it. A marker allele associated with the apomixis mutation is generally retained after the fixation of apomixis, particularly if the two alleles ...
journal_title:Journal of evolutionary biology
pub_type: 杂志文章
doi:10.1111/j.1420-9101.2007.01371.x
更新日期:2007-09-01 00:00:00
abstract::A challenge of life-history theory is to explain why animal body size does not continue to increase, given various advantages of larger size. In birds, body size of nestlings and the number of nestlings produced (brood size) have occasionally been shown to be constrained by higher predation on larger nestlings and tho...
journal_title:Journal of evolutionary biology
pub_type: 杂志文章
doi:10.1111/jeb.13218
更新日期:2018-02-01 00:00:00
abstract::Competition and conflict among individuals can favour exploitative strategies that undermine the common good. Theory suggests that this can lead to a tragedy of the commons and ultimately population extinction, a phenomenon known as evolutionary suicide. Here, I present a model of the evolutionary tragedy of the commo...
journal_title:Journal of evolutionary biology
pub_type: 杂志文章
doi:10.1111/j.1420-9101.2006.01211.x
更新日期:2007-01-01 00:00:00
abstract::Sexual selection can explain major micro- and macro-evolutionary patterns. Much of current theory predicts that the strength of sexual selection (i) is driven by the relative abundance of males and females prepared to mate (i.e. the operational sex ratio, OSR) and (ii) can be generally estimated by calculating intra-s...
journal_title:Journal of evolutionary biology
pub_type: 杂志文章,评审
doi:10.1111/j.1420-9101.2009.01921.x
更新日期:2010-03-01 00:00:00
abstract::Decades of experiments have demonstrated the ecological effect of competition, but experimental evidence for competitive effects on trait evolution is rare. I measured the evolution of six protozoan traits in response to competitors from the inquiline community of pitcher plants. Replicate populations of Colpoda, a ci...
journal_title:Journal of evolutionary biology
pub_type: 杂志文章
doi:10.1111/j.1420-9101.2010.02140.x
更新日期:2011-01-01 00:00:00
abstract::We estimated broad-sense heritabilities (H(2)) of 13 female and seven male life-history traits of the Glanville fritillary butterfly (Melitaea cinxia) under semi-natural conditions in a large outdoor population cage. The analysis was based on full-sib families collected as young larvae in the field and reared under co...
journal_title:Journal of evolutionary biology
pub_type: 杂志文章
doi:10.1111/j.1420-9101.2009.01807.x
更新日期:2009-09-01 00:00:00
abstract::Sex chromosomes are expected to evolve suppressed recombination, which leads to degeneration of the Y and heteromorphism between the X and Y. Some sex chromosomes remain homomorphic, however, and the factors that prevent degeneration of the Y in these cases are not well understood. The homomorphic sex chromosomes of t...
journal_title:Journal of evolutionary biology
pub_type: 杂志文章
doi:10.1111/j.1420-9101.2012.02591.x
更新日期:2012-10-01 00:00:00
abstract::We investigated the relationship between host defense and specialization by parasites in comparative analyses of bird fleas and T-cell mediated immune response of their avian hosts, showing that fleas with few main host species exploited hosts with weak or strong immune defenses, whereas flea species that parasitized ...
journal_title:Journal of evolutionary biology
pub_type: 杂志文章
doi:10.1111/j.1420-9101.2004.00774.x
更新日期:2005-01-01 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
pub_type: 杂志文章
doi:10.1111/j.1420-9101.2011.02445.x
更新日期:2012-03-01 00:00:00
abstract::Quaternary environmental changes substantially impacted the landscape and promoted rapid evolutionary changes in many species; however, analyses of adaptive phenotypic variation in plants have usually neglected the underlying historical context. Here, we associate phylogeography and phenotypic evolution by analysing t...
journal_title:Journal of evolutionary biology
pub_type: 杂志文章
doi:10.1111/jeb.12889
更新日期:2016-08-01 00:00:00
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...
journal_title:Journal of evolutionary biology
pub_type: 杂志文章
doi:10.1111/jeb.12904
更新日期:2016-09-01 00:00:00
abstract::Crocodilians show a high degree of cranial variation and convergence throughout their 80 million-year fossil record that complicates their phylogenetic reconstruction. Conflicting phylogenetic results from different data partitions and character homoplasies typify crocodilian phylogeny, and differences between molecul...
journal_title:Journal of evolutionary biology
pub_type: 杂志文章
doi:10.1111/j.1420-9101.2008.01602.x
更新日期:2008-11-01 00:00:00
abstract::Measuring contemporary dispersal in highly mobile terrestrial species is challenging, especially when species are characterized by low levels of population differentiation. Directly transmitted viruses can be used as a surrogate for traditional methods of tracking host movement. Feline immunodeficiency virus (FIV) is ...
journal_title:Journal of evolutionary biology
pub_type: 杂志文章
doi:10.1111/jeb.13348
更新日期:2018-10-01 00:00:00
abstract::We used a crossing experiment to investigate post-zygotic barriers that might limit introgression between a pair of closely-related, gynodioecious plant species--the widespread weed Silene vulgaris and the local Swedish endemic S. uniflora ssp. petraea. The study not only considered the effects of hybridization on con...
journal_title:Journal of evolutionary biology
pub_type: 杂志文章
doi:10.1111/j.1420-9101.2008.01554.x
更新日期:2008-09-01 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::Our understanding of how fast mating behaviour evolves in insects is rather poor due to a lack of comparative studies among insect groups for which phylogenetic relationships are known. Here, we present a detailed study of the mating behaviour of 27 species of Sepsidae (Diptera) for which a well-resolved and supported...
journal_title:Journal of evolutionary biology
pub_type: 杂志文章
doi:10.1111/j.1420-9101.2009.01826.x
更新日期:2009-11-01 00:00:00
abstract::The late Pleistocene was a time of environmental change, culminating in an extinction event. Few fossil localities record a temporal series of carnivore fossil populations from this interesting interval as well as Rancho La Brea (RLB). We analysed mandibles of Smilodon fatalis from RLB using 2-D geometric morphometric...
journal_title:Journal of evolutionary biology
pub_type: 杂志文章
doi:10.1111/jeb.12340
更新日期:2014-04-01 00:00:00
abstract::The evolutionary history of aquatic invasion in birds would be incomplete without incorporation of extinct species. We show that aquatic affinities in fossil birds can be inferred by multivariate analysis of skeletal features and locomotion of 245 species of extant birds. Regularized discriminant analyses revealed tha...
journal_title:Journal of evolutionary biology
pub_type: 杂志文章
doi:10.1111/j.1420-9101.2009.01909.x
更新日期:2010-02-01 00:00:00
abstract::Our ability to examine genetic variation across entire genomes has enabled many studies searching for the genetic basis of local adaptation. These studies have identified numerous loci as candidates for differential local selection; however, relatively few have examined the overlap among candidate loci identified from...
journal_title:Journal of evolutionary biology
pub_type: 杂志文章
doi:10.1111/jeb.13732
更新日期:2020-11-04 00:00:00
abstract::Hybridization is likely to occur more often between closely related taxa that have had insufficient time to diverge to the point of reproductive incompatibility; hybridization between deeply divergent lineages is rare. In squamate reptiles, hybridization has been proposed as a possible explanation for the extensive pa...
journal_title:Journal of evolutionary biology
pub_type: 杂志文章
doi:10.1111/jeb.13273
更新日期:2018-06-01 00:00:00
abstract::Queen pheromones are among the most important chemical messages regulating insect societies yet they remain largely undiscovered, hindering research into interesting proximate and ultimate questions. Identifying queen pheromones in multiple species would give new insight into the selective pressures and evolutionary c...
journal_title:Journal of evolutionary biology
pub_type: 杂志文章
doi:10.1111/jeb.12162
更新日期:2013-07-01 00:00:00
abstract::Medullary bone (MB) is a special endosteal tissue forming in the bones of female birds during egg laying to serve as a labile calcium reservoir for building the hard eggshell. Therefore, the presence of MB reported in multiple nonavian dinosaurs is currently considered as evidence that those specimens were sexually ma...
journal_title:Journal of evolutionary biology
pub_type: 杂志文章,评审
doi:10.1111/jeb.13019
更新日期:2017-03-01 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
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::Food shortage is an important selective factor shaping animal life-history trajectories. Yet, despite its role, many aspects of the interaction between parental and offspring food environments remain unclear. In this study, we measured developmental plasticity in response to food availability over two generations and ...
journal_title:Journal of evolutionary biology
pub_type: 杂志文章
doi:10.1111/jeb.12872
更新日期:2016-07-01 00:00:00