自引率: 12.6%
被引量: 1385
通过率: 暂无数据
审稿周期: 6
版面费用: 暂无数据
国人发稿量: 12
投稿须知/期刊简介:
MOLECULAR AND DEVELOPMENTAL EVOLUTION (MDE) welcomes papers that contribute to a causal understanding of the evolution of development and how development influences patterns of molecular and phenotypic evolution. Papers that take diverse disciplinary approaches, including developmental, molecular, genetic, evolutionary, systematic, ecological, and paleontological, will be published. MDE seeks research articles without page restriction or charges, review articles, invited commentaries, and book reviews. The Editor-in-Chief has discretion over the use of a number of free color plates. Only color illustrations that highlight the text and convey essential scientific information will be considered for reproduction free of charge, subject to the recommendations of the reviewers and Associate Editors.
期刊描述简介:
Developmental Evolution is a branch of evolutionary biology that integrates evidence and concepts from developmental biology, phylogenetics, comparative morphology, evolutionary genetics and increasingly also genomics, systems biology as well as synthetic biology to gain an understanding of the structure and evolution of organisms. The Journal of Experimental Zoology -B: Molecular and Developmental Evolution provides a forum where these fields are invited to bring together their insights to further a synthetic understanding of evolution from the molecular through the organismic level. Contributions from all these branches of science are welcome to JEZB. We particularly encourage submissions that apply the tools of genomics, as well as systems and synthetic biology to developmental evolution. At this time the impact of these emerging fields on developmental evolution has not been explored to its fullest extent and for this reason we are eager to foster the relationship of systems and synthetic biology with devo evo.
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The "eyespot module" and eyespots as modules: development, evolution, and integration of a complex phenotype.
Organisms are inherently modular, yet modules also evolve in response to selection for functional integration or functional specialization of traits. For serially repeated homologous traits, there is a clear expectation that selection on the function of individual traits will reduce the integration between traits and subdivide a single ancestral module. The eyespots on butterfly wings are one example of serially repeated morphological traits that share a common developmental mechanism but are subject to natural and sexual selection for divergent functions. Here, I test two hypotheses about the organization of the eyespot pattern into independent dorsal-ventral and anterior-posterior modules, using a graphical modeling technique to examine patterns of eyespot covariation among and within wing surfaces in the butterfly Bicyclus anynana. Although there is a hierarchical and complex pattern of integration among eyespots, the results show a surprising mismatch between patterns of eyespot integration and the developmental and evolutionary eyespot units identified in previous empirical studies. These results are discussed in light of the relationships between developmental, functional, and evolutionary modules, and they suggest that developmental sources of independent trait variation are often masked by developmental sources of trait integration.
被引量：5 发表：2008
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Developmental and genetic mechanisms for evolutionary diversification of serial repeats: eyespot size in Bicyclus anynana butterflies.
Serially repeated pattern elements on butterfly wings offer the opportunity for integrating genetic, developmental, and functional aspects towards understanding morphological diversification and the evolution of individuality. We use captive populations of Bicyclus anynana butterflies, an emerging model in evolutionary developmental biology, to explore the genetic and developmental basis of compartmentalized changes in eyespot patterns. There is much variation for different aspects of eyespot morphology, and knowledge about the genetic pathways and developmental processes involved in eyespot formation. Also, despite the strong correlations across all eyespots in one butterfly, B. anynana shows great potential for independent changes in the size of individual eyespots. It is, however, unclear to what extent the genetic and developmental processes underlying eyespot formation change in a localized manner to enable such individualization. We use micromanipulations of developing wings to dissect the contribution of different components of eyespot development to quantitative differences in eyespot size on one wing surface. Reciprocal transplants of presumptive eyespot foci between artificial selection lines and controls suggest that while localized antagonistic changes in eyespot size rely mostly on localized changes in focal signal strength, concerted changes depend greatly on epidermal response sensitivities. This potentially reflects differences between the signal-response components of eyespot formation in the degrees of compartmentalization and/or the temporal pattern of selection. We also report on the phenotypic analysis of a number of mutant stocks demonstrating how single alleles can affect different eyespots in concert or independently, and thus contribute to the individualization of serially repeated traits.
被引量：- 发表：2008
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Polyandry and female control: the red flour beetle Tribolium castaneum as a case study.
Females of many animal species are polyandrous, and there is evidence that they can control pre- and post-mating events. There has been a growing interest in consequences of polyandry for male and female reproductive success and offspring fitness, and its evolutionary significance. In several taxa, females exhibit mate choice both before and after mating and can influence the paternity of their offspring, enhancing offspring number and quality, but potentially countering male interests. Studying female mating biology and in particular post-copulatory female control mechanisms thus promises to yield insights into sexual selection and the potential of male-female coevolution. Here, we highlight the red flour beetle Tribolium castaneum (Herbst), a storage pest, as a model system to study polyandry, and review studies addressing the effects of polyandry on male sperm competitive ability and female control of post-mating events. These studies show that the outcome of sperm competition in the red flour beetle is influenced by both male and female traits. Furthermore, recent advances suggest that sexual conflict may have shaped reproductive traits in this species.
被引量：- 发表：2008
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ARNT gene multiplicity in amphibians: characterization of ARNT2 from the frog Xenopus laevis.
The aryl hydrocarbon receptor nuclear translocator (ARNT) is a member of the Per-ARNT-Sim (PAS) protein superfamily, transcription factors that mediate the cellular responses to various developmental signals and environmental conditions. A beta-class ("partner") PAS protein, ARNT exhibits the capacity to form transcriptionally active heterodimers with several alpha-class ("sensor") proteins, including the aryl hydrocarbon receptors (AHRs), the hypoxia-inducible factors (HIFs), and the Single minded (Sim) proteins. Two genes encode different forms of ARNT in mammals: ARNT1, which is widely expressed, and ARNT2, which is limited to the brain and kidneys of adults and specific neural and branchial tissues of embryos. In contrast, fish apparently express only a single ARNT gene, although in different species, this may be either ARNT1 or ARNT2. In efforts to understand the evolution of ARNT proteins throughout the vertebrate lineage, we isolated an ARNT cDNA from early life stages of the amphibian Xenopus laevis. The encoded protein binds cognate DNA sequences in concert with mouse AHR. Phylogenetic analysis reveals that this sequence is orthologous to mammalian ARNT2 and paralogous to the recently reported X. laevis ARNT1. ARNT2 mRNA expression begins later than ARNT1 (stage 22 vs. stage 8), suggesting the two proteins play distinct roles during development. Hence, in the expression of two well-conserved ARNT paralogs with distinct expression patterns, X. laevis resembles mammals rather than fish. Diversity in the number and function of PAS proteins, including ARNT, may underlie significant species differences in developmental programming and biochemical response to environmental conditions. The identification of multiple amphibian ARNT paralogs represents an important step in the understanding of evolution and functional variation of ARNT in vertebrates.
被引量：10 发表：2003
