Results 31 to 40 of about 219,064 (327)

Simultaneous Identification of Duplications and Lateral Gene Transfers

open access: greenIEEE/ACM Transactions on Computational Biology and Bioinformatics, 2010
The incongruency between a gene tree and a corresponding species tree can be attributed to evolutionary events such as gene duplication and gene loss. This paper describes a combinatorial model where so-called DTL-scenarios are used to explain the differences between a gene tree and a corresponding species tree taking into account gene duplications ...
Ali Asghar Tofigh   +2 more
openalex   +7 more sources

Unique features of Entamoeba histolytica glycerophospholipid metabolism; has the E. histolytica lipid metabolism network evolved through gene loss and gain to enable parasitic life cycle adaptation?

open access: yesmSphere, 2023
Entamoeba histolytica, a protozoan parasite, causes amoebiasis, which is a global public health problem. During the life cycle of this parasite, the properties of the cell membrane are changed markedly. To clarify the mechanism of membrane lipid changes,
Fumika Mi-ichi   +3 more
doaj   +1 more source

Lateral Transfer of Genes and Gene Fragments in Prokaryotes [PDF]

open access: yesGenome Biology and Evolution, 2009
Lateral genetic transfer (LGT) involves the movement of genetic material from one lineage into another and its subsequent incorporation into the new host genome via genetic recombination. Studies in individual taxa have indicated lateral origins for stretches of DNA of greatly varying length, from a few nucleotides to chromosome size. Here we analyze 1,
Cheong Xin Chan   +4 more
openaire   +4 more sources

Evolutionary mechanisms for camouflage in Cladomorphus phyllinus (Phasmatodea): A reflection on the role of evidence for hypotheses proposition [PDF]

open access: yesAnais da Academia Brasileira de Ciências, 2020
We address and discuss some of the many flaws exhibited by Costa et al. (2019) which tried to explain the twig-like camouflage of Cladomorphus phyllinus. Given the lack of both empirical and theoretical underpinnings in Costa et al.
DIMITRI FORERO   +3 more
doaj   +1 more source

Inferring Species Trees from Incongruent Multi-Copy Gene Trees Using the Robinson-Foulds Distance [PDF]

open access: yes, 2012
We present a new method for inferring species trees from multi-copy gene trees. Our method is based on a generalization of the Robinson-Foulds (RF) distance to multi-labeled trees (mul-trees), i.e., gene trees in which multiple leaves can have the same ...
Burleigh, J. Gordon   +2 more
core   +2 more sources

Genome-scale phylogenetic analysis finds extensive gene transfer among Fungi [PDF]

open access: yes, 2015
Although the role of lateral gene transfer is well recognized in the evolution of bacteria, it is generally assumed that it has had less influence among eukaryotes.
Boussau, Bastien   +4 more
core   +4 more sources

Horizontal gene transfer from genetically modified plants - Regulatory considerations

open access: yesFrontiers in Bioengineering and Biotechnology, 2022
Gene technology regulators receive applications seeking permission for the environmental release of genetically modified (GM) plants, many of which possess beneficial traits such as improved production, enhanced nutrition and resistance to drought, pests
Joshua G. Philips   +2 more
doaj   +1 more source

Overview on possible causes of COVID-19 [PDF]

open access: yesThe Moldovan Medical Journal, 2022
Background: The infection with the new coronavirus SARS-CoV-2 has caused a large number of cases of disease and death worldwide. Identifying the source of COVID-19 is an important issue though still unresolved.
Ilarion Draguta
doaj   +1 more source

Quantifying the Extent of Lateral Gene Transfer Required to Avert a `Genome of Eden' [PDF]

open access: yes, 2009
The complex pattern of presence and absence of many genes across different species provides tantalising clues as to how genes evolved through the processes of gene genesis, gene loss and lateral gene transfer (LGT).
Semple, Charles   +2 more
core   +4 more sources

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