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Background The complete genomes of three animals have been sequenced by global research efforts: a nematode worm (Caenorhabditis elegans), an insect (Drosophila melanogaster), and a vertebrate (Homo sapiens).…
Updated Oct 29, 2026
HealthData.Gov
Background Polytene chromosome banding patterns have long been used by Drosophila evolutionists to infer degree of relatedness among taxa. Recently, nucleotide sequences have preempted this traditional method. We place…
Updated Oct 29, 2026
HealthData.Gov
Background Gene fusions can be used as tools for functional prediction and also as evolutionary markers. Fused genes often show a scattered phyletic distribution, which suggests a role for processes other than vertical…
Updated Oct 29, 2026
HealthData.Gov
Background Little is known about phytoplankton communities inhabiting low pH environments such as volcanic and geothermal sites or acidic waters. Only specialised organisms are able to tolerate such extreme conditions.…
Updated Oct 29, 2026
HealthData.Gov
G-protein-coupled receptors (GPCRs) are the largest and most diverse family of transmembrane receptors. A pylogenetic analysis shows the overall relationship of 277 human GPCRs. An emphasis on receptors with no…
Updated Oct 29, 2026
HealthData.Gov
Background Horizontal gene transfer (HGT) played an important role in shaping microbial genomes. In addition to genes under sporadic selection, HGT also affects housekeeping genes and those involved in information…
Updated Oct 29, 2026
HealthData.Gov
Background The genome of invertebrates is rich in retroelements which are structurally reminiscent of the retroviruses of vertebrates. Those containing three open reading frames (ORFs), including an env-like gene, may…
Updated Oct 29, 2026
HealthData.Gov
Background Identification of co-regulated genes is essential for elucidating transcriptional regulatory networks and the function of uncharacterized genes. Although co-regulated genes should have at least one common…
Updated Oct 29, 2026
HealthData.Gov
Background The availability of multiple complete genome sequences from diverse taxa prompts the development of new phylogenetic approaches, which attempt to incorporate information derived from comparative analysis of…
Updated Oct 29, 2026
HealthData.Gov
Background Current evidence suggests that lepidopteran baculoviruses may be divided into two phylogenetic groups based on their envelope fusion proteins. One group utilizes gp64, a low pH-dependent envelope fusion…
Updated Oct 29, 2026
