Evolutionary Biology
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Accounting for molecular stochasticity in systematic revisions: species limits and phylogeny of Paroaria
Different frameworks have been proposed for using molecular data in systematic revisions, but there is ongoing debate on their applicability, merits and shortcomings. In this paper we examine the f…
Received 22 June 2009 00:50 UTC; Posted 22 June 2009
Posted to: Evolutionary Biology
Animal emergence during Snowball Earths by thermosynthesis in submarine hydrothermal vents
Darwin already commented on the lateness in the fossil record of the emergence of the animals, calling it a valid argument against his theory of evolution1. This emergence of the animals (metazoa…
Received 18 June 2009 13:05 UTC; Posted 19 June 2009
Posted to: Developmental Biology, Evolutionary Biology
Aging as a consequence of misrepair—A novel theory of aging
It is now increasingly realized that the underlying mechanisms which govern aging is a complex interplay of genetic regulation and damage accumulation. Aging as a result of accumulation of ‘faults’…
Received 15 June 2009 13:25 UTC; Posted 17 June 2009
Posted to: Developmental Biology, Evolutionary Biology
The study of the umbilical system in planktonic foraminifera in relation with depth of the Ziarat-kola section at the Maastrichtian, Central Alborz, IRAN
The main aim of this research is study of the planktonic foraminifera morphogroups distinction genus to perform by changing the umbilicus area in Ziarat-kola section to find novel results. Therefor…
Received 14 June 2009 21:45 UTC; Posted 15 June 2009
Posted to: Ecology, Earth & Environment, Evolutionary Biology
3D model of amphioxus steroid receptor complexed with estradiol
The origins of signaling by vertebrate steroids are not fully understood. An important advance was the report that an estrogen-binding steroid receptor [SR] is present in amphioxus, a basal chorda…
Received 03 June 2009 21:14 UTC; Posted 05 June 2009
Posted to: Cancer, Developmental Biology, Bioinformatics, Evolutionary Biology
The Opisthokonta and the Ecdysozoa may be clades: An update on Philip et al. (2005)
To test the monophyly of Opisthokonta (animal-fungal clade) and Ecdysozoa (nematode-arthropod clade), Philip et al [Mol. Biol. Evol. 22: 1175–1184 (2005)] used sequence data from 10 eukaryotic geno…
Received 02 June 2009 10:00 UTC; Posted 05 June 2009
Posted to: Evolutionary Biology
Structural Analysis of Polarizing Indels Argues the Root of the Tree of Life is Near the Chloroflexi
Determining which branches of the tree of life have derived features narrows down the possible location of the root. Currently the polarization of indels done by Lake et al.1-5 and the polarizi…
Received 26 May 2009 18:04 UTC; Posted 27 May 2009
Posted to: Genetics & Genomics, Bioinformatics, Evolutionary Biology
Molecular evidence for the hadrosaur B. canadensis as an outgroup to a clade containing the dinosaur T. rex and birds
Molecular analysis of collagen sequences from an 80 million year old hadrosaur B. canadensis and a 68 million year old dinosaur T. rex suggest strongly that B. canadensis is an outgroup to a …
Received 15 May 2009 19:03 UTC; Posted 27 May 2009
Posted to: Bioinformatics, Evolutionary Biology
Ustilago and the accidental domestication of maize
Maize is the essential crop of the Americas. Maize appeared suddenly about 8,500 years ago as domesticated teosinte; however, there is no evidence (genetical, archaeological, linguistic or ethnobot…
Received 13 May 2009 01:27 UTC; Posted 14 May 2009
Posted to: Plant Biology, Evolutionary Biology
A conceptual framework for the evolutionary selection of biologically ‘essential’ elements
Standard texts dutifully list 16 essential elements for plant growth, yet the literature indicates that the boundary between essential and nonessential nutrients for plants is not always clear. Whe…
Received 05 May 2009 23:51 UTC; Posted 20 May 2009
Posted to: Earth & Environment, Evolutionary Biology
