Submissions tagged with Evolution
(45 documents)
Just-in-time assembly of cell-cycle protein complexes
Our comparative analysis of eukaryotic cell-cycle complexes reveals that the identity of the periodically expressed subunits differs significantly between organisms and is often mirrored by changes…
Received 09 September 2008 07:21 UTC; Posted 09 September 2008
Posted to: Molecular Cell Biology, Bioinformatics
Exaptation and emergence as mechanisms to cross fitness valleys during evolution: an example using simulated homing behaviour
Evolution is often considered a gradual hill climbing process, slowly increasing the fitness of organisms. I investigate the evolution of homing behaviour in simulated intertidal limpets. In order …
Received 12 August 2008 12:42 UTC; Posted 14 August 2008
Posted to: Evolutionary Biology
Trichoplax, the simplest known animal, contains an estrogen-related receptor but no estrogen receptor: Implications for estrogen receptor evolution
Although, as their names imply, estrogen receptors [ERs] and estrogen-related receptors [ERRs] are related transcription factors, their evolutionary relationships to each other are not fully unders…
Received 12 August 2008 02:08 UTC; Posted 13 August 2008
Posted to: Developmental Biology, Ecology, Evolutionary Biology
SNP analysis reveals an evolutionary acceleration of the human-specific microRNAs
MicroRNAs are one class of important gene regulators at the post-transcriptional level by binding to the 3’UTRs of target mRNAs. It has been reported that human microRNAs are evolutionary conserved…
Received 29 July 2008 08:29 UTC; Posted 29 July 2008
Posted to: Genetics & Genomics, Bioinformatics, Evolutionary Biology
Ancient fossil specimens of extinct species are genetically more distant to an outgroup than extant sister species are
There exists a remarkable correlation between genetic distance as measured by protein or DNA dissimilarity and time of species divergence as inferred from fossil records. This observation has prov…
Received 23 July 2008 16:14 UTC; Posted 25 July 2008
Posted to: Bioinformatics, Evolutionary Biology
Fossil evidence for the origin of spider spinnerets
Silk production from opisthosomal glands is a defining characteristic of spiders (Araneae). Silk emerges from spigots (modified setae) borne on spinnerets (modified appendages). Spigots from _Atter…
Received 18 July 2008 04:17 UTC; Posted 21 July 2008
Posted to: Genetics & Genomics, Earth & Environment, Evolutionary Biology
Sociobiological Control of Plasmid copy number
Background:All known mechanisms and genes responsible for the regulation of plasmid replication lie with the plasmid rather than the chromosome. It is possible therefore that there can be copy-up…
Received 26 June 2008 07:28 UTC; Posted 26 June 2008
Posted to: Ecology, Microbiology
Why are women smaller than men? When anthropology meets evolutionary biology
There are large variations of size among humans but in all populations, men are larger on average than women. For most biologists this fact can be easily explained by the same processes that explai…
Received 25 April 2008 12:31 UTC; Posted 25 April 2008
Posted to: Evolutionary Biology
Biogeographic relationships among deep-sea hydrothermal vent faunas at global scale
The discovery of deep-sea hydrothermal vent fauna, kilometers deep in the oceans, is a great achievement of 20th-century marine biology. The deep-sea hydrothermal food web does not directly depend …
Received 21 April 2008 19:26 UTC; Posted 23 April 2008
Posted to: Ecology
Selective insectivory in Nymphaea nouchali Burm. f.
Carnivorous plants comprise roughly 0.24 percent of the flowering plants, or 640 species represented in 12 families. Yet they are regarded as miracula naturae. Over fifty percent of these taxa ar…
Received 20 April 2008 09:13 UTC; Posted 21 April 2008
Posted to: Ecology, Earth & Environment, Plant Biology
