Results 61 to 70 of about 17,767 (219)

The Origin of a New Sex Chromosome by Introgression between Two Stickleback Fishes. [PDF]

open access: yes, 2019
Introgression is increasingly recognized as a source of genetic diversity that fuels adaptation. Its role in the evolution of sex chromosomes, however, is not well known. Here, we confirm the hypothesis that the Y chromosome in the ninespine stickleback,
Abbott   +78 more
core   +1 more source

Forcing external constraints on tree inference using ASTRAL

open access: yesBMC Genomics, 2020
Background To account for genome-wide discordance among gene trees, several widely-used methods seek to find a species tree with the minimum distance to input gene trees.
Maryam Rabiee, Siavash Mirarab
doaj   +1 more source

Data concatenation, Bayesian concordance and coalescent-based analyses of the species tree for the rapid radiation of Triturus newts. [PDF]

open access: yesPLoS ONE, 2014
The phylogenetic relationships for rapid species radiations are difficult to disentangle. Here we study one such case, namely the genus Triturus, which is composed of the marbled and crested newts.
Ben Wielstra   +4 more
doaj   +1 more source

Coalescent histories for lodgepole species trees

open access: yes, 2015
Coalescent histories are combinatorial structures that describe for a given gene tree and species tree the possible lists of branches of the species tree on which the gene tree coalescences take place. Properties of the number of coalescent histories for
Disanto, Filippo, Rosenberg, Noah A.
core   +1 more source

Hybridization and extensive mitochondrial introgression among fire salamanders in peninsular Italy [PDF]

open access: yes, 2018
Discordance between mitochondrial and nuclear patterns of population genetic structure is providing key insights into the eco-evolutionary dynamics between and within species, and their assessment is highly relevant to biodiversity monitoring practices ...
Arduino, Paola   +4 more
core   +2 more sources

NDST3‐Induced Epigenetic Reprogramming Reverses Neurodegeneration in Parkinson's Disease

open access: yesAdvanced Science, EarlyView.
NDST3‐mediated epigenetic reprogramming revitalizes neuronal circuits in the substantia nigra and striatum to halt dopaminergic neuron degeneration and restore motor function in Parkinson's disease models. This strategy promotes neuronal maintenance and functional recovery, highlighting NDST3's therapeutic potential in neurodegenerative disorders ...
Yujung Chang   +18 more
wiley   +1 more source

Dissecting discordance of mitochondrial and nuclear phylogenetic trees in insects

open access: yesCrop Health
The mitochondrial and nuclear genomes present distinct inheritance and genomic structural characteristics. Although both genomes have been widely used for phylogenetic tree reconstruction, topological discordances between trees inferred from ...
Xianfeng Mi   +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

Cancer‐Like Fragmentomic Characteristics of Somatic Variants in Cell‐Free DNA

open access: yesAdvanced Science, EarlyView.
We report that in non‐cancerous subjects, cell‐free (cfDNA) molecules harboring somatic variants exhibit cancer‐like fragmentomic characteristics associated with clonal hematopoiesis. Importantly, these somatic variant‐associated fragmentomic aberrations are more pronounced in cancer patients. Leveraging such somatic variant‐associated signals in cfDNA,
Zhenyu Zhang   +12 more
wiley   +1 more source

Transcriptome analysis provides new insights into cold adaptation of corsac fox (Vulpes Corsac)

open access: yesEcology and Evolution, 2022
Vulpesare widely distributed throughout the world and have undergone drastic physiological and phenotypic changes in response to their environment. However, little is known about the underlying genetic causes of these traits, especially Vulpes corsac. In
Xiufeng Yang   +8 more
doaj   +1 more source

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