Molecular survey and characterization of a novel Anaplasma
... [22]. The illness caused by A. capra are different from A. phagocytophilum infection [5]. In this study, A. capra-like bacteria were identified in H. qinghaiensis ticks. However, it is still not clear whether this Anaplasma species is pathogenic to humans and animals. The reservoir hosts of Anaplasm ...
... [22]. The illness caused by A. capra are different from A. phagocytophilum infection [5]. In this study, A. capra-like bacteria were identified in H. qinghaiensis ticks. However, it is still not clear whether this Anaplasma species is pathogenic to humans and animals. The reservoir hosts of Anaplasm ...
Evolutionary genetics of partial migration the threshold model of
... selection towards a mean below the threshold at which migratory offspring are no longer produced (Fig. 2). Once the populational mean has shifted towards this point or beyond, variation in liability does not respond anymore to selection. Genetic variation may, however, be lost by genetic drift. Furth ...
... selection towards a mean below the threshold at which migratory offspring are no longer produced (Fig. 2). Once the populational mean has shifted towards this point or beyond, variation in liability does not respond anymore to selection. Genetic variation may, however, be lost by genetic drift. Furth ...
here - Imedea
... within the reference lists of the gathered papers. Finally, we asked for unpublished data by directly contacting colleagues working on this field. After discarding 42 studies due to lack of essential information (mainly standard errors and sample sizes), we ended up with a database consisting of 55 ...
... within the reference lists of the gathered papers. Finally, we asked for unpublished data by directly contacting colleagues working on this field. After discarding 42 studies due to lack of essential information (mainly standard errors and sample sizes), we ended up with a database consisting of 55 ...
Cultural niche construction and human evolution
... that culture frequently does affect the evolutionary process through modifying natural selection pressures. This has lead to the development of mathematical and conceptual models of gene-culture coevolution that involve descriptions not only of how human genetic evolution in¯uences culture but also ...
... that culture frequently does affect the evolutionary process through modifying natural selection pressures. This has lead to the development of mathematical and conceptual models of gene-culture coevolution that involve descriptions not only of how human genetic evolution in¯uences culture but also ...
Evolutionary interactions between sex chromosomes and autosomes
... central question raised was no longer how the two members of the sex chromosome pair and the genes encoded in them evolve by themselves, or how the sex chromosomes affect each other during evolution. The new question is whether or not the sex chromosomes and autosomes directly affect each other over ...
... central question raised was no longer how the two members of the sex chromosome pair and the genes encoded in them evolve by themselves, or how the sex chromosomes affect each other during evolution. The new question is whether or not the sex chromosomes and autosomes directly affect each other over ...
INTRODUCTION TO GENETICS Table of Contents Heredity
... arose by mutations. Charles Darwin, in his Origin of Species, was unable to describe how heritable changes were passed on to subsequent generations, or how new adaptations arose. Mutations provided answers to problems of the appearance of novel adaptations. The patterns of Mendelian inheritance expl ...
... arose by mutations. Charles Darwin, in his Origin of Species, was unable to describe how heritable changes were passed on to subsequent generations, or how new adaptations arose. Mutations provided answers to problems of the appearance of novel adaptations. The patterns of Mendelian inheritance expl ...
MyTaxa: an advanced taxonomic classifier for genomic and
... transfer. MyTaxa also implements a novel classification scheme based on the genome-aggregate average amino acid identity concept to determine the degree of novelty of sequences representing uncharacterized taxa, i.e. whether they represent novel species, genera or phyla. Application of MyTaxa on in ...
... transfer. MyTaxa also implements a novel classification scheme based on the genome-aggregate average amino acid identity concept to determine the degree of novelty of sequences representing uncharacterized taxa, i.e. whether they represent novel species, genera or phyla. Application of MyTaxa on in ...
Y11 Revision material - Biology - Whitworth Community High School
... □ Understand classification of organisms into groups. □ Describe how organisms are placed into the five Kingdoms. □ Use characteristics to place organisms into the different classes of arthropods. □ Recognise that organisms within a species may show great variation. □ Understand why similar species ...
... □ Understand classification of organisms into groups. □ Describe how organisms are placed into the five Kingdoms. □ Use characteristics to place organisms into the different classes of arthropods. □ Recognise that organisms within a species may show great variation. □ Understand why similar species ...
Transformations of Lamarckism
... from various branches of biology that took place in the 1930s and 1940s and gave Mendelian genetics a central place in evolutionary thinking forms a bridge between the historical and biological parts of this volume. The workshop participants agreed that, in spite of the different ways biology develo ...
... from various branches of biology that took place in the 1930s and 1940s and gave Mendelian genetics a central place in evolutionary thinking forms a bridge between the historical and biological parts of this volume. The workshop participants agreed that, in spite of the different ways biology develo ...
Population ecology and genetics of the invasive
... none of them attempted to characterize the fine scale genetic composition, which is at the forefront of the invasion. To derive a more complete picture of the impact and mode of expansion of the lionfish invasion, it is necessary to obtain information from many sites across their invaded range. This ...
... none of them attempted to characterize the fine scale genetic composition, which is at the forefront of the invasion. To derive a more complete picture of the impact and mode of expansion of the lionfish invasion, it is necessary to obtain information from many sites across their invaded range. This ...
Tetrasomic inheritance in cultivated potato and implications in
... better quality and disease resistance. Phenotypic recurrent selection as implied here remains important during cultivar development (Howard, 1970; 1978). In a typical breeding programme, parental clones may be selected on the basis of their combining ability and phenotype on the assumption that comp ...
... better quality and disease resistance. Phenotypic recurrent selection as implied here remains important during cultivar development (Howard, 1970; 1978). In a typical breeding programme, parental clones may be selected on the basis of their combining ability and phenotype on the assumption that comp ...
Drosophila melanogaster
... The larva increases in size over time as it is voracious. The larval stage is subdivided into three substages as it sheds its skin to accommodate its growth. The form assumed by an insect after a stadium, an interval between moltings, is called an instar (Imms 1960; McGrath 1999). Drosophila has thr ...
... The larva increases in size over time as it is voracious. The larval stage is subdivided into three substages as it sheds its skin to accommodate its growth. The form assumed by an insect after a stadium, an interval between moltings, is called an instar (Imms 1960; McGrath 1999). Drosophila has thr ...
Dominant and recessive central core disease associated with
... motor milestones and had a normal intellectual development. The muscular weakness appeared to be `non-progressive'; there was no cardiac involvement and the respiratory capacities were acceptable for their respective ages. It should be noted that, from an early age, bilateral ptosis and strabismus w ...
... motor milestones and had a normal intellectual development. The muscular weakness appeared to be `non-progressive'; there was no cardiac involvement and the respiratory capacities were acceptable for their respective ages. It should be noted that, from an early age, bilateral ptosis and strabismus w ...
Ensembl Compara Perl API
... MethodLinkSpeciesSet provides a handle to isolate specific data from the shared tables (homology, genomic_align_block) ...
... MethodLinkSpeciesSet provides a handle to isolate specific data from the shared tables (homology, genomic_align_block) ...
Selection experiments: an under-utilized tool in
... 1994; Richardson et al., 1994). However, as noted by Ricker et al. (1987), this claim is usually made in the absence of hard evidence, such as comparisons of wild and laboratory forms. For many domesticated organisms, concerns about differences between them and their wild counterparts can be address ...
... 1994; Richardson et al., 1994). However, as noted by Ricker et al. (1987), this claim is usually made in the absence of hard evidence, such as comparisons of wild and laboratory forms. For many domesticated organisms, concerns about differences between them and their wild counterparts can be address ...
The Making of the Fittest: Natural Selection and Adaptation
... • You may want to show the film more than once so students can take notes. Encourage them to write down questions they have about the film’s content. • Students should understand that individuals do not evolve but that populations evolve and that variations may be favorable, neutral, or negative. Va ...
... • You may want to show the film more than once so students can take notes. Encourage them to write down questions they have about the film’s content. • Students should understand that individuals do not evolve but that populations evolve and that variations may be favorable, neutral, or negative. Va ...
The making of the Fittest: Natural Selection and Adaptation
... Evidence that natural selection is not random is the fact that when different genetic mutations produce the same phenotypic results in different areas, these similar adaptations are favored under similar conditions. An example provided in the film is the different populations of rock pocket mice wit ...
... Evidence that natural selection is not random is the fact that when different genetic mutations produce the same phenotypic results in different areas, these similar adaptations are favored under similar conditions. An example provided in the film is the different populations of rock pocket mice wit ...
SB2. Students will analyze how biological traits are passed on to
... • A very small percentage of all mutations actually have a positive effect these are called beneficial mutations. • These mutations lead to new versions of proteins that help an organism and its future generations better adapt to changes in their environment. • Example: – Deletion of CCR5 gene leads ...
... • A very small percentage of all mutations actually have a positive effect these are called beneficial mutations. • These mutations lead to new versions of proteins that help an organism and its future generations better adapt to changes in their environment. • Example: – Deletion of CCR5 gene leads ...
The Making of the Fittest: Natural Selection and Adaptation
... Evidence that natural selection is not random is the fact that when different genetic mutations produce the same phenotypic results in different areas, these similar adaptations are favored under similar conditions. An example provided in the film is the different populations of rock pocket mice wit ...
... Evidence that natural selection is not random is the fact that when different genetic mutations produce the same phenotypic results in different areas, these similar adaptations are favored under similar conditions. An example provided in the film is the different populations of rock pocket mice wit ...
Homology and Heterochrony
... Walter Garstang (1868–1949), who coined the term ‘paedomorphosis’. Garstang wrote only a few papers on this issue, which did not attract wide recognition in his life-time, but his ideas prove to be important for the history of evolutionary developmental biology (Hall, 2000). As discussed below, de B ...
... Walter Garstang (1868–1949), who coined the term ‘paedomorphosis’. Garstang wrote only a few papers on this issue, which did not attract wide recognition in his life-time, but his ideas prove to be important for the history of evolutionary developmental biology (Hall, 2000). As discussed below, de B ...
Diversity in theWeapons of Sexual Selection: Horn Evolution in
... they much more evolutionarily labile, cropping up and disappearing repeatedly in the evolutionary history of the beetles? (We later use this same phylogenetic tree to ask a different sort of question—whether the evolution of horns was correlated with specific ecological situations or habitats encoun ...
... they much more evolutionarily labile, cropping up and disappearing repeatedly in the evolutionary history of the beetles? (We later use this same phylogenetic tree to ask a different sort of question—whether the evolution of horns was correlated with specific ecological situations or habitats encoun ...
Mechanisms and constraints shaping the evolution of body plan
... constraints shaping the evolution of segmentation mechanisms. This comparative analysis suggests that both sequential, oscillation-driven segmentation and simultaneous, hierarchic segmentation are to be expected rather than random evolutionary outcomes once we take the constraints arising from their ...
... constraints shaping the evolution of segmentation mechanisms. This comparative analysis suggests that both sequential, oscillation-driven segmentation and simultaneous, hierarchic segmentation are to be expected rather than random evolutionary outcomes once we take the constraints arising from their ...
Are all sex chromosomes created equal?
... chromosomes. However, because both U and V chromosomes are expressed as haploids they are protected from complete genetic deterioration. A similar logic applies to sex chromosomes in plants, which are expressed in the haploid genome in gametophytes. The following sections are organized around three ...
... chromosomes. However, because both U and V chromosomes are expressed as haploids they are protected from complete genetic deterioration. A similar logic applies to sex chromosomes in plants, which are expressed in the haploid genome in gametophytes. The following sections are organized around three ...
IVRI OB 1809
... population containing many different pure lines is selected, it is changed as a whole, because the differences between its constituent lines are genotypic. The second experiment (although earlier in date) is the proof by Mendel that the genotype is composed of indivisible parts. Mendel "crossed memb ...
... population containing many different pure lines is selected, it is changed as a whole, because the differences between its constituent lines are genotypic. The second experiment (although earlier in date) is the proof by Mendel that the genotype is composed of indivisible parts. Mendel "crossed memb ...
Analysis of 16S ribosomal RNA gene segments for the diagnosis of
... Traditional phenotypic identification is difficult and time-consuming. In addition, when phenotypic methods are used to identify bacteria, interpretation of test results involves substantial subjective judgment (Bosshard et al., 2004). Phenotypic tests are characterized by potential inherent problem ...
... Traditional phenotypic identification is difficult and time-consuming. In addition, when phenotypic methods are used to identify bacteria, interpretation of test results involves substantial subjective judgment (Bosshard et al., 2004). Phenotypic tests are characterized by potential inherent problem ...
Koinophilia
Koinophilia is an evolutionary hypothesis concerning sexual selection which proposes that animals seeking mate preferentially choose individuals with a minimum of unusual features. Koinophilia intends to explain the clustering of organisms into species and other issues described by Darwin's Dilemma. The term derives from the Greek, koinos, ""the usual"", and philos, ""fondness"".Natural selection causes beneficial inherited features to become more common and eventually replace their disadvantageous counterparts. A sexually-reproducing animal would be expected to avoid individuals with unusual features, and to prefer to mate with individuals displaying a predominance of common or average features. This means that mates displaying mutant features are also avoided. This is advantageous because most mutations that manifest themselves as changes in appearance, functionality or behavior, are disadvantageous. Because it is impossible to judge whether a new mutation is beneficial or not, koinophilic animals avoid them all, at the cost of avoiding the occasional beneficial mutation. Thus, koinophilia, although not infallible in its ability to distinguish fit from unfit mates, is a good strategy when choosing a mate. A koinophilic choice ensures that offspring are likely to inherit features that have been successful in the past.Koinophilia differs from assortative mating, where ""like prefers like"". If like preferred like, leucistic animals (such as white peacocks) would be sexually attracted to one another, and a leucistic subspecies would come into being. Koinophilia predicts that this is unlikely because leucistic animals are attracted to the average in the same way as other animals. Since non-leucistic animals are not attracted by leucism, few leucistic individuals find mates, and leucistic lineages will rarely form.Koinophilia provides simple explanations for the rarity of speciation (in particular Darwin's Dilemma), evolutionary stasis, punctuated equilibria, and the evolution of cooperation. Koinophilia might also contribute to the maintenance of sexual reproduction, preventing its reversion to the much simpler and inherently more advantageous asexual form of reproduction.The koinophilia hypothesis is supported by research into the physical attractiveness of human faces by Judith Langlois and her co-workers. They found that the average of two human faces was more attractive than either of the faces from which that average was derived. The more faces (of the same gender and age) that were used in the averaging process the more attractive and appealing the average face became. This work into averageness supports koinophilia as an explanation of what constitutes a beautiful face, and how the individuality of a face is recognized.