Results 31 to 40 of about 14,913 (198)

Phylogenetic incongruence in Cymbidium orchids

open access: yesPlant Diversity, 2021
Cymbidium, which includes approximately 80 species, is one of the most ornamental and cultivated orchid genera. However, a lack of markers and sparse sampling have posed great challenges to resolving the phylogenetic relationships within the genus.
Guo-Qiang Zhang   +10 more
doaj   +1 more source

Target capture data resolve recalcitrant relationships in the coffee family (Rubioideae, Rubiaceae)

open access: yesFrontiers in Plant Science, 2022
Subfamily Rubioideae is the largest of the main lineages in the coffee family (Rubiaceae), with over 8,000 species and 29 tribes. Phylogenetic relationships among tribes and other major clades within this group of plants are still only partly resolved ...
Olle Thureborn   +5 more
doaj   +1 more source

A multispecies coalescent model for quantitative traits

open access: yeseLife, 2018
We present a multispecies coalescent model for quantitative traits that allows for evolutionary inferences at micro- and macroevolutionary scales.
Fábio K Mendes   +3 more
doaj   +1 more source

Lycophyte transcriptomes reveal two whole-genome duplications in Lycopodiaceae: Insights into the polyploidization of Phlegmariurus

open access: yesPlant Diversity, 2022
Lycophytes are an ancient clade of the non-flowering vascular plants with chromosome numbers that vary from tens to hundreds. They are an excellent study system for examining whole-genome duplications (WGDs), or polyploidization, in spore-dispersed ...
Zeng-Qiang Xia   +7 more
doaj   +1 more source

Evidence for diversifying selection of genetic regions of encoding putative collagen-like host-adhesive fibers in Pasteuria penetrans [PDF]

open access: yes, 2019
© FEMS 2018. This is an Open Access article distributed under the terms of the Creative Commons Attribution License (http://creativecommons.org/licenses/by/4.0/), which permits unrestricted reuse, distribution, and reproduction in any medium, provided ...
Anderson   +70 more
core   +3 more sources

Applicability of several rooted phylogenetic network algorithms for representing the evolutionary history of SARS-CoV-2

open access: yesBMC Ecology and Evolution, 2021
Background Rooted phylogenetic networks are used to display complex evolutionary history involving so-called reticulation events, such as genetic recombination.
Rosanne Wallin   +3 more
doaj   +1 more source

Unraveling the rapid radiation of crested newts, Triturus cristatus superspecies, using complete mitogenomic sequences [PDF]

open access: yes, 2011
Background - The rapid radiation of crested newts (Triturus cristatus superspecies) comprises four morphotypes: 1) the T. karelinii group, 2) T. carnifex - T. macedonicus, 3) T. cristatus and 4) T. dobrogicus.
Arntzen, J.W., Wielstra, B.M.
core   +6 more sources

Phylogenomic approaches untangle early divergences and complex diversifications of the olive plant family

open access: yesBMC Biology, 2022
Background Deep-branching phylogenetic relationships are often difficult to resolve because phylogenetic signals are obscured by the long history and complexity of evolutionary processes, such as ancient introgression/hybridization, polyploidization, and
Wenpan Dong   +11 more
doaj   +1 more source

Examination of Hemiplasy, Homoplasy and Phylogenetic Discordance in Chromosomal Evolution of the Bovidae [PDF]

open access: yesSystematic Biology, 2011
Robertsonian chromosomal fusions predominate in shaping the genomes of many species of Bovidae. These and other cytogenetic data (from 52 taxa representing 51 species and 9 tribes of Bovidae) were (i) examined for usefulness in defining phylogenetic relationships and (ii) subsequently mapped to a consensus tree based on mitochondrial and nuclear DNA ...
Robinson T.J., Ropiquet A.
openaire   +3 more sources

Restricted trees: simplifying networks with bottlenecks [PDF]

open access: yes, 2010
Suppose N is a phylogenetic network indicating a complicated relationship among individuals and taxa. Often of interest is a much simpler network, for example, a species tree T, that summarizes the most fundamental relationships. The meaning of a species
Willson, Stephen J.
core   +4 more sources

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