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Split genes uncovered through science fusion

Article Abstract:

A study was conducted to show that fundamental tRNA genes thought to be missing from the genome of the parasitic species of Archaea, Nanoarchaeum equitans, are probably split into separate chunks in completely different parts of genome. The manner in which the separate halves of the missing tRNA are joined to create functional molecules is described by using an effective synthesis of bioinformatics and wet lab approaches.

Author: McClay, J.L., van denOord, E.J.C.G.
Publisher: Blackwell Publishers Ltd.
Publication Name: Heredity
Subject: Biological sciences
ISSN: 0018-067X
Year: 2005
Genetic aspects, Transfer RNA, Archaeabacteria, Archaea

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Nonrandom dispersal and local adaptation

Article Abstract:

Studies were conducted to demonstrate how nonrandom dispersal could promote genetic differentiation in fitness-related traits even in the absence of spatial variation in the selection regime. The results revealed that the patterns of traits differentiation observed in great tits appear to elect the interplay between the diversity effects of nonrandom dispersal and the homogenizing effects of spatially uniform selection.

Author: Storz, J.F.
Publisher: Blackwell Publishers Ltd.
Publication Name: Heredity
Subject: Biological sciences
ISSN: 0018-067X
Year: 2005
Fitness (Genetics)

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Closing the gap between rocks and clocks

Article Abstract:

A new study applies a Bayesian relaxed clock method to a large eukaryotic data set and obtains much better agreement between molecular dates and the fossil record. The study reduces the gap between molecular and fossil dates using three strategies of increasing the size of the data set, using a large number of fossil calibration and incorporating uncertainty in both evolutionary rates and fossil calibration points.

Author: Cranston, K.
Publisher: Blackwell Publishers Ltd.
Publication Name: Heredity
Subject: Biological sciences
ISSN: 0018-067X
Year: 2005
Eukaryotes, Molecular clock (Genetics)

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Subjects list: Research, RNA splicing, Genetic research, Split genes
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