منابع مشابه
HGT turbulence
Horizontal gene transfer (HGT) often leads to phylogenetic incongruence. When "duplicative HGT" introduces a second copy of a pre-existing gene, the two copies may then engage in gene conversion, leading to phylogenetically mosiac genes. When duplicative HGT is followed by differential gene conversion among descendant lineages, as under the DH-DC model, phylogenetic analysis is further complica...
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UNLABELLED Horizontal gene transfer (HGT) is a common event in prokaryotic evolution. Therefore, it is very important to consider HGT in the study of molecular evolution of prokaryotes. This is true also for conducting computer simulations of their molecular phylogeny because HGT is known to be a serious disturbing factor for estimating their correct phylogeny. To the best of our knowledge, no ...
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It is independent of the usual (ZFC) axioms of set theory whether every collectionwise Hausdorff tree is either metrizable or has an uncountable chain. We show that even if we add “or has an Aronszajn subtree,” the statement remains ZFC-independent. This is done by constructing a tree as in the title, using the set-theoretic hypothesis ♦, which holds in Gödel’s Constructible Universe.
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ژورنال
عنوان ژورنال: Mathematical Biosciences
سال: 2019
ISSN: 0025-5564
DOI: 10.1016/j.mbs.2019.108283