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Open AccessJournal ArticleDOI

MEGA6: Molecular Evolutionary Genetics Analysis Version 6.0

TLDR
An advanced version of the Molecular Evolutionary Genetics Analysis software, which currently contains facilities for building sequence alignments, inferring phylogenetic histories, and conducting molecular evolutionary analysis, is released, which enables the inference of timetrees, as it implements the RelTime method for estimating divergence times for all branching points in a phylogeny.
Abstract
We announce the release of an advanced version of the Molecular Evolutionary Genetics Analysis (MEGA) software, which currently contains facilities for building sequence alignments, inferring phylogenetic histories, and conducting molecular evolutionary analysis. In version 6.0, MEGA now enables the inference of timetrees, as it implements the RelTime method for estimating divergence times for all branching points in a phylogeny. A new Timetree Wizard in MEGA6 facilitates this timetree inference by providing a graphical user interface (GUI) to specify the phylogeny and calibration constraints step-by-step. This version also contains enhanced algorithms to search for the optimal trees under evolutionary criteria and implements a more advanced memory management that can double the size of sequence data sets to which MEGA can be applied. Both GUI and command-line versions of MEGA6 can be downloaded from www.megasoftware.net free of charge.

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Ancient genomes show social and reproductive behavior of early Upper Paleolithic foragers

TL;DR: It is shown that individuals at Sunghir derive from a population of small effective size, with limited kinship and levels of inbreeding similar to HG populations, suggesting that Upper Paleolithic social organization was similar to that of living HGs, withlimited relatedness within residential groups embedded in a larger mating network.
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Chimpanzee genomic diversity reveals ancient admixture with bonobos

TL;DR: It is found that chimpanzee population substructure makes genetic information a good predictor of geographic origin at country and regional scales and also provides population-specific genetic markers that may be valuable for conservation efforts.

Insight Review The 2014 Ebola virus disease outbreak in West Africa

TL;DR: The appearance of cases in the Guinean capital, Conakry, and the transit of another case through the Liberian capital, Monrovia, presents the first large urban setting for EVD transmission.
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Mitochondrial phylogenomics of Hemiptera reveals adaptive innovations driving the diversification of true bugs.

TL;DR: The phylogeny and evolutionary history of Hemiptera is elucidated and Ancestral character state reconstruction and divergence time estimation suggest that the success of true bugs (Heteroptera) is probably due to angiosperm coevolution, but key adaptive innovations facilitated multiple independent shifts among diverse feeding habits and multiple independent colonizations of aquatic habitats.
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Genome-wide Association Mapping Identifies a New Arsenate Reductase Enzyme Critical for Limiting Arsenic Accumulation in Plants

TL;DR: A genome-wide association study identifies the enzyme in plants that transforms arsenate into arsenite, allowing its extrusion into the soil and thereby controlling arsenic accumulation.
References
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Journal ArticleDOI

MEGA5: Molecular Evolutionary Genetics Analysis using Maximum Likelihood, Evolutionary Distance, and Maximum Parsimony Methods

TL;DR: The newest addition in MEGA5 is a collection of maximum likelihood (ML) analyses for inferring evolutionary trees, selecting best-fit substitution models, inferring ancestral states and sequences, and estimating evolutionary rates site-by-site.
Journal ArticleDOI

MEGA3: Integrated software for Molecular Evolutionary Genetics Analysis and sequence alignment

TL;DR: An overview of the statistical methods, computational tools, and visual exploration modules for data input and the results obtainable in MEGA is provided.
Book

The Neutral Theory of Molecular Evolution

Motoo Kimura
TL;DR: The neutral theory as discussed by the authors states that the great majority of evolutionary changes at the molecular level are caused not by Darwinian selection but by random drift of selectively neutral mutants, which has caused controversy ever since.
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