有关Evolution的中文翻译

<正>"进化"或"演化"是一个外来词,是从英文单词翻译过来的,这个英文名词是evolution,动词的形式是evolve。它源自拉丁语,原意是将卷着的物体展开。最早将其用在生物学中并不是现在的含义。一位瑞士的生理学家,同时也是一个很有名的解剖学家和博物学家,Albrechtvon Hal er(1708–1777)把evolution用在"先成论"里。先成论认为,所有的生物都是同时被造     

Can Evolution Explain Insanity?

I distinguish three evolutionary explanations of mental illness: first, breakdowns in evolved computational systems; second, evolved systems performing their evolutionary function in a novel environment; third, evolved personality structures. I concentrate on the second and third explanations, as these are distinctive of an evolutionary psychopathology, with progressively less credulity in the light of the empirical evidence. General morals are drawn for evolutionary psychiatry.     

Darwin’s Methodological Evolution

A necessary condition for having a revolution named after you is that you are an innovator in your field. I argue that if Charles Darwin meets this condition, it is as a philosopher and methodologist. In 1991, I made the case for Darwins innovative use of thought experiment in the Origin. Here I place this innovative practice in the context of Darwins methodological commitments, trace its origins back into Darwins notebooks, and pursue Darwins suggestion that it owes its inspiration to Charles Lyell.     

University Evolution Education: The Effect of Evolution Instruction on Biology Majors�� Content Knowledge, Attitude Toward Evolution, and Theistic Position

Issues regarding understanding of evolution and resistance to evolution education in the United States are of key importance to biology educators at all levels. While research has measured student views toward evolution at single points in time, few studies have been published investigating whether views of college seniors are any different than first-year students in the same degree program. Additionally, students choosing to major in biological sciences have largely been overlooked, as if their acceptance of evolution is assumed. This study investigated the understanding of evolution and attitude toward evolution held by students majoring in biological science during their first and fourth years in a public research university. Participants included students in a first-year introductory biology course intended for biological science majors and graduating seniors earning degrees in either biology or genetics. The portion of the survey reported here consisted of quantitative measures of students’ understanding of core concepts of evolution and their attitude toward evolution. The results indicate that students’ understanding of particular evolutionary concepts is significantly higher among seniors, but their attitude toward evolution is only slightly improved compared to their first-year student peers. When comparing first-year students and seniors, students’ theistic position was not significantly different.     

The Soft Underbelly of Evolution?

Evolution and the origin of life are separate, if connected, topics, but they are frequently conflated??especially by creationists. Regarding the natural origin of life as ??the soft underbelly?? of evolution, creationists argue that it is impossible, improbable, or insusceptible to scientific investigation. Underlying their arguments is the hope that the failure of scientific research on the origin of life is evidence for a supernatural account. It is crucial for teachers to understand the nature of science in order to be able to explain why appeals to the supernatural are out of place in explaining the origin of life and why scientific research on the origin of life is not intrinsically a threat to faith.     

Charting Evolution’s Trajectory: Using Molluscan Eye Diversity to Understand Parallel and Convergent Evolution

For over 100 years, molluscan eyes have been used as an example of convergent evolution and, more recently, as a textbook example of stepwise evolution of a complex lens eye via natural selection. Yet, little is known about the underlying mechanisms that create the eye and generate different morphologies. Assessing molluscan eye diversity and understanding how this diversity came about will be important to developing meaningful interpretations of evolutionary processes. This paper provides an introduction to the myriad of eye types found in molluscs, focusing on some of the more unusual structures. We discuss how molluscan eyes can be applied to the study of evolution by examining patterns of convergent and parallel evolution and provide several examples, including the putative convergence of the camera-type eyes of cephalopods and vertebrates.     

Language Evolution: Loquacious Monkey Brains?

Theories about the evolutionary path that led to the neuronal network underlying human language have long generated much heat without light. Using PET imaging, a recent study suggests that monkeys share a circuit for vocal perception with humans, adding some empirical data to the debate.     

Evolution of a Vκ gene family

To examine the evolution of multigene families we have selected as an example an immunoglobulin light chain variable region subgroup (V24) which has been extensively characterized in inbred mice (Mus musculus domesticus). Homologous genes have been isolated and sequenced from Mus pahari, a genetically and geographically isolated species believed to be the oldest living representative of the genus. Southern blot analysis using probes corresponding to individual genes in this subgroup reveals changes in the overall size of the family occurring at the level of individual genes but not at the level of the entire family. Nucleotide sequence analysis indicates an absence of regulatory sequences such as the CAT and TATA boxes 5 to the coding region, but a decanucleotide sequence involved in light chain expression is highly conserved. Within coding regions highly complex patterns of variation are seen which appear to reflect quite different selective pressures on various subregions of the coding sequence. Complementarity determining regions (CDR) are conserved to different extents, with the first CDR region in all family members being among the most conserved segments of the molecule. Conservation is similarly variable among framework segments, indicating complex and variable evolutionary pressures not only at the level of individual genes or their products but also at subregions within homologous molecules.     

Domain Evolution in the α-Amylase Family

The available amino acid sequences of the α-amylase family (glycosyl hydrolase family 13) were searched to identify their domain B, a distinct domain that protrudes from the regular catalytic (β/α)₈-barrel between the strand β3 and the helix α3. The isolated domain B sequences were inspected visually and also analyzed by Hydrophobic Cluster Analysis (HCA) to find common features. Sequence analyses and inspection of the few available three-dimensional structures suggest that the secondary structure of domain B varies with the enzyme specificity. Domain B in these different forms, however, may still have evolved from a common ancestor. The largest number of different specificities was found in the group with structural similarity to domain B from Bacillus cereus oligo-1,6-glucosidase that contains an α-helix succeeded by a three-stranded antiparallel β-sheet. These enzymes are α-glucosidase, cyclomaltodextrinase, dextran glucosidase, trehalose-6-phosphate hydrolase, neopullulanase, and a few α-amylases. Domain B of this type was observed also in some mammalian proteins involved in the transport of amino acids. These proteins show remarkable similarity with (β/α)₈-barrel elements throughout the entire sequence of enzymes from the oligo-1,6-glucosidase group. The transport proteins, in turn, resemble the animal 4F2 heavy-chain cell surface antigens, for which the sequences either lack domain B or contain only parts thereof. The similarities are compiled to indicate a possible route of domain evolution in the α-amylase family. Received: 4 December 1996 / Accepted: 13 March 1997     

Are There Laws of Genome Evolution?

Research in quantitative evolutionary genomics and systems biology led to the discovery of several universal regularities connecting genomic and molecular phenomic variables. These universals include the log-normal distribution of the evolutionary rates of orthologous genes; the power law-like distributions of paralogous family size and node degree in various biological networks; the negative correlation between a gene's sequence evolution rate and expression level; and differential scaling of functional classes of genes with genome size. The universals of genome evolution can be accounted for by simple mathematical models similar to those used in statistical physics, such as the birth-death-innovation model. These models do not explicitly incorporate selection; therefore, the observed universal regularities do not appear to be shaped by selection but rather are emergent properties of gene ensembles. Although a complete physical theory of evolutionary biology is inconceivable, the universals of genome evolution might qualify as "laws of evolutionary genomics" in the same sense "law" is understood in modern physics.     

Über den Physiologischen Aspekt der Evolution

Zusammenfassung Der Verfasser bespricht das Kriterium der biologischen Superiorität (der biologischen Vollkommenheit); er sieht dieses Kriterium in dem Mass, in dem ein Lebewesen fähig ist die Umwelt zu erforschen und auszunützen, d.h. sich die nötigen inneren Bedingungen an Hand der äusseren Bedingungen zu schaffen. Das Wachsen dieser Fähigkeit ist mit dem allmählichen Erlangen einer relativen Unabhängigkeit der Lebewesen der Umwelt gegenüber, durch die Entwicklung der Homöostasie, verbunden.Damit die Reaktionen der Lebewesen auf die Umweltsfaktoren möglichst wirksam sind, ist eine grösstmögliche Genauigkeit der Funktionen erforderlich. Diese Genauigkeit (analytische Fähigkeit) ist dimensionell (räumlich und zeitlich) und quantitativ (stärkemässig). Der Verfasser bespricht ausführlich nur den dimensionellen Genauigkeitsaspekt der Funktionen, da er diesen als das eigentliche Mass der morpho-physiologischen Evolution betrachtet. Er zeigt, dass zwischen der räumlich-morphologischen und der zeitlichphysiologischen Seite dieser Evolution nicht nur ein Parallelismus besteht, sondern auch eine Wesensanalogie: beide Aspekte der Evolution bedeuten eine Steigerung der Komplexität, eine Verkleinerung der relativen Dimensionen der zusammensetzenden Elemente; vom physiologischen Standpunkte aus, bedeutet dieses eine Geschwindigkeitssteigerung der Vorgänge. In dieser Geschwindigkeitssteigerung, die in der phylogenetischen Reihe vor allem auf dem Gebiete der animalische Funktionen festgestellt wurde, sieht der Verfasser den physiologischen Aspekt der Tierweltevolution.Dann wird das Problem der relativen Dimensionen besprochen: der eigenen Zeit und des eigenen Raumes.Abschliessend, zeigt der Verfasser, dass die vergleichenden morphologischen Studien nicht genügen um den Gang der Evolution, den biologischen Fortschritt, zu klären. Die Evolution hat auch seinen physiologischen Aspekt, der genau so wichtig ist wie der morphologische. Nur das gleichzeitige Studium beider Aspekte (die heute noch sehr ungleich bekannt sind) wird eine genaue, quantitative Erforschung der Evolution ermöglichen.

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About the physiological aspect of evolution

Summary The author discusses the criterion of the biological superiority (perfection); he sees this criterion in the measure in which a being is able to explore and to make use of its environment, that means to create for itself the necessary internal conditions on account of the external ones. The increase of this capacity is dependent of a gradual gaining of a relative independence of the beings towards the environment, by the development of homoiostasy.In order that the reactions towards the factors of the environment shall be more efficatious, a greater precision of the functions is necessary. This precision (analytical capacity) is dimensional (spatial and temporal) and quantitative (of intensity). The author discusses in detail only the aspect of the dimensional precision of the functions, meaning that this is the real measure of the morpho-physiological evolution. He shows that between the spatial-morphological aspect of this evolution and the temporal-physiological one there is not only a parallelism, but an analogy of nature: under the two aspects evolution means an increase of complexity, a reduction of relative dimensions of component elements; under physiological aspect this means an increase of the speed of processes. In this increase of speed (evidentiated in the phyletic series of animals particularly in the functions of reception and reaction) the author views the physiological aspect of the evolution of the animal kingdom.Than the problem of relative dimensions is discussed: of the own time and own space.In conclusion the author shows that comparative morphological studies are not sufficient to elucidate the way of evolution, the biological progress. Evolution also has a physiological aspect, as important as the morphological one. Only the concomitent study of both aspects (very inequally known to-day) will permit a precise, quantitative research on evolution.

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Sur l'aspect physiologique de l'évolution

Résumé L'auteur discute le critérium de la supériorité (de la perfection) biologique. Il voit ce critérium dans la mesure, dans laquelle un être vivant est capable d'explorer et d'exploiter le milieu; c'est-à-dire la capacité de se créer les conditions internes nécessaires, les conditions externes étant données. Cette capacité devient plus grande au fur et à mesure que les êtres gagnent une indépendence relative envers le mileu, par le développement de l'homéostasie.Pour pouvoir réagir d'une manière plus efficace envers les facteurs du milieu, il est nécessaire que les fonctions de l'organisme soient plus précises. Cette précision (capacité analytique) est dimensionnelle (spaciale et temporelle) et quantitative (d'intensité). L'auteur discute en détail seulement l'aspect de la précision dimensionnelle des fonctions, considérant celle-ci comme la mesure proprement dite de l'évolution morpho-physiologique.Il montre, que le coté spacial-morphologique et celui temporel-physiologique de cette évolution sont non seulement parallèles, mais encore analogues selon leur nature: sous les deux aspects, l'évolution signifie une augmentation de la complexité, une réduction des dimensions relatives des éléments composants; sous l'aspect physiologique, cela veut dire une augmentation de la vitesse des processus. Dans cette augmentation des vitesses (mise en évidence dans la série phylétique des animaux surtout en ce qui concerne les fonctions de relation) voit l'auteur l'aspect physiologique de l'évolution du monde animal.On discute ensuite le problème des dimensions relatives: du temps propre et de l'espace propre.En conclusion, l'auteur montre l'insuffisance des études comparatives morphologiques pour élucider la marche de l'évolution, le progrès biologique. L'évolution a de même un aspect physiologique, aussi important que celui morphologique. Seulement l'étude combinée des deux aspects (aujourd'hui très inégalement connus) permettra les recherches précises, quantitatives sur l'évolution.

     

Changing Museum Visitors’ Conceptions of Evolution

We examined whether a single visit to an evolution exhibition contributed to conceptual change in adult (n?=?30), youth, and child (n?=?34) museum visitors?? reasoning about evolution. The exhibition included seven current research projects in evolutionary science, each focused on a different organism. To frame this study, we integrated a developmental model of visitors?? understanding of evolution, which incorporates visitors?? intuitive beliefs, with a model of free-choice learning that includes personal, sociocultural, and contextual variables. Using pre- and post-measures, we assessed how visitors?? causal explanations about biological change, drawn from three reasoning patterns (evolutionary, intuitive, and creationist), were modified as a result of visiting the exhibition. Whatever their age, background beliefs, or prior intuitive reasoning patterns, visitors significantly increased their use of explanations from the evolutionary reasoning pattern across all measures and extended this reasoning across diverse organisms. Visitors also increased their use of one intuitive reasoning pattern, need-based (goal-directed) explanations, which, we argue, may be a step toward evolutionary reasoning. Nonetheless, visitors continued to use mixed reasoning (endorsing all three reasoning patterns) in explaining biological change. The personal, socio-cultural, and contextual variables were found to be related to these reasoning patterns in predictable ways. These findings are used to examine the structure of visitors?? reasoning patterns and those aspects of the exhibition that may have contributed to the gains in museum visitors?? understanding of evolution.     

Weird genetics? Evolution and nonmendelian genes

It is the simplicity of traditional genetics that has endowed it with such power. Its generalisations do describe most genetic phenomena in most organisms, most of the time … the great challenge [is] to explore the implications of the exceptions and to find new sets of even more potent rules, if any exist.     

Evolution Education in Utah: A State Office of Education–University Partnership Focuses on Why Evolution Matters

Several groups of people are essential for effectively teaching the theory of evolution in public schools. Teachers of course are at the leading edge of educating students. However, school district administrators, school boards, state education officers, and university professors all play critical roles in this endeavor. Whereas scientific discoveries and teacher training typically occur at the university level, it is school district leaders and teachers who actually disseminate this information in a way that creates an educated population of students. In this study, we introduce a partnership focused on strengthening evolution education in Utah’s public schools. Our program centers on the importance of evolution as an applied science and one that can be readily integrated throughout the biology curriculum. Our 2-day workshop—conducted in each Utah school district—brings together elected school board members, school district administrators, public school science teachers, and university professors to overcome barriers that can arise when teaching the theory of evolution as part of the 7–12 public school curriculum.     

Accelerated Evolution of Cytochrome b in Simian Primates: Adaptive Evolution in Concert with Other Mitochondrial Proteins?

We have sequenced the cytochrome b gene of Horsfield's tarsier, Tarsius bancanus, to complete a data set of sequences for this gene from representatives of each primate infraorder. These primate cytochrome b sequences were combined with those from representatives of three other mammalian orders (cat, whale, and rat) in an analysis of relative evolutionary rates. The nonsynonymous nucleotide substitution rate of the cytochrome b gene has increased approximately twofold along lineages leading to simian primates compared to that of the tarsier and other primate and nonprimate mammalian species. However, the rate of transversional substitutions at fourfold degenerate sites has remained uniform among all lineages. This increase in the evolutionary rate of cytochrome b is similar in character and magnitude to that described previously for the cytochrome c oxidase subunit II gene. We propose that the evolutionary rate increase observed for cytochrome b and cytochrome c oxidase subunit II may underlie an episode of coadaptive evolution of these two proteins in the mitochondria of simian primates. Received: 15 December 1997 / Accepted: 24 February 1998     

What Amino Acid Properties Affect Protein Evolution?

We studied 10 protein-coding mitochondrial genes from 19 mammalian species to evaluate the effects of 10 amino acid properties on the evolution of the genetic code, the amino acid composition of proteins, and the pattern of nonsynonymous substitutions. The 10 amino acid properties studied are the chemical composition of the side chain, two polarity measures, hydropathy, isoelectric point, volume, aromaticity, aliphaticity, hydrogenation, and hydroxythiolation. The genetic code appears to have evolved toward minimizing polarity and hydropathy but not the other seven properties. This can be explained by our finding that the presumably primitive amino acids differed much only in polarity and hydropathy, but little in the other properties. Only the chemical composition (C) and isoelectric point (IE) appear to have affected the amino acid composition of the proteins studied, that is, these proteins tend to have more amino acids with typical C and IE values, so that nonsynonymous mutations tend to result in small differences in C and IE. All properties, except for hydroxythiolation, affect the rate of nonsynonymous substitution, with the observed amino acid changes having only small differences in these properties, relative to the spectrum of all possible nonsynonymous mutations. Received: 2 January 1998 / Accepted: 25 April 1998     

Evolution of caprine and ovine β-defensin genes

Defensins comprise an important family of anti-microbial peptides. Among vertebrates, numerous defensin genes have been detected, but their evolutionary background is still discussed. We investigated the molecular evolution and variability of β-defensins of Caprini via sequence analyses of defensin introns. Screening of several domestic and wild species of Caprini revealed a total of 13 discrete β-defensin coding sequences, with three of them described before this study. Phylogenetic analyses revealed that the array of newly described defensin genes is of monophyletic origin and has arisen in numerous independent duplication events after separation of the ancestral defensins. As a result of that scenario, recent defensin genes are distributed in a species-specific manner. Values of synonymous and non-synonymous substitutions demonstrated that both modes of evolutionary pressure, positive as well as negative selection, have acted. In addition, conservation of some β-defensin exons is demonstrated. Discrimination of certain β-defensin genes was possible only due to intron-specific differences. Therefore, sequence analyses restricted to the exons would result in underestimation of the number of β-defensin genes. Our study shows that for reconstruction of the phylogenetic history data of defensin introns are more appropriated. Comparisons among the amino acid sequences show moderate substitutions without changing the net charge of the mature peptides. Electronic supplementary material Electronic supplementary material is available for this article at and accessible for authorised users.