Results 71 to 80 of about 31,734 (247)

A Bayesian Approach to Inferring the Phylogenetic Structure of Communities from Metagenomic Data [PDF]

open access: yesGenetics, 2014
AbstractMetagenomics provides a powerful new tool set for investigating evolutionary interactions with the environment. However, an absence of model-based statistical methods means that researchers are often not able to make full use of this complex information.
O'Brien, J.   +5 more
openaire   +4 more sources

Phylogenomic insights into the genus Tulipa (Liliaceae): Taxonomy, evolution, and biogeography

open access: yesAmerican Journal of Botany, EarlyView.
Abstract Premise Tulips are one of the best‐known geophytes, but their taxonomy remains convoluted and their evolutionary history poorly understood. Here, we used plastid genomes to identify some issues with current classification, understand the diversification history of the genus, and identify potential species linked to historical cultivation ...
Brett Wilson   +17 more
wiley   +1 more source

A Reversible Jump Method for Bayesian Phylogenetic Inference with a Nonhomogeneous Substitution Model [PDF]

open access: yesMolecular Biology and Evolution, 2007
Nonhomogeneous substitution models have been introduced for phylogenetic inference when the substitution process is nonstationary, for example, when sequence composition differs between lineages. Existing models can have many parameters, and it is then difficult and computationally expensive to learn the parameters and to select the optimal model ...
Gowri-Shankar, Vivek   +1 more
openaire   +2 more sources

Integrating developmental and macroevolutionary approaches reveals a staminodial origin of all alternisepalous organs in Caryophyllaceae

open access: yesAmerican Journal of Botany, EarlyView.
Abstract Premise The identity of sterile floral organs in second‐whorl, alternisepalous positions within Caryophyllaceae remains contentious, having been described as staminodes, “petaloids,” or petals homologous with those of other Pentapetalae. Limited ingroup and outgroup sampling and floral developmental data and inadequate phylogenetic comparative
Riley J. Rees   +2 more
wiley   +1 more source

Complete mitochondrial genome of the Grey thrush Turdus cardis (Aves, Turdidae)

open access: yesMitochondrial DNA. Part B. Resources, 2020
The mitogenome was sequenced through whole-genome shotgun sequencing using the Illumina platform, and phylogenetic analysis was carried out on the basis of 13 PCGs and two rRNAs. The complete T. cardis mitogenome comprised 16,761 bp, MN865118.
Cheng-He Sun   +6 more
doaj   +1 more source

An ontological morphological phylogenetic framework for living and extinct ray‐finned fishes (Actinopterygii)

open access: yesThe Anatomical Record, EarlyView.
Abstract The ray‐finned fishes include one out of every two species of living vertebrates on Earth and have an abundant fossil record stretching 380 million years into the past. The division of systematic knowledge of ray‐finned fishes between paleontologists working on extinct animals and neontologists studying extant species has obscured the ...
Jack Stack
wiley   +1 more source

MicroCT reinvestigation of the only articulated fossil anostomid fish reveals synonymy of Arhinolemur Ameghino, 1898 and Megaleporinus Ramirez et al., 2017

open access: yesThe Anatomical Record, EarlyView.
Abstract Arhinolemur scalabrinii† Ameghino, 1898 was originally described as a strepsirrhine primate (Mammalia) but has been recognized as an anostomid fish since 2012. It remains the only extinct anostomid species known from complete cranial material.
Karen M. Panzeri   +8 more
wiley   +1 more source

Bayesian Phylogenetic Inference via Markov Chain Monte Carlo Methods [PDF]

open access: yesBiometrics, 1999
Summary.We derive a Markov chain to sample from the posterior distribution for a phylogenetic tree given sequence information from the corresponding set of organisms, a stochastic model for these data, and a prior distribution on the space of trees. A transformation of the tree into a canonical cophenetic matrix form suggests a simple and effective ...
Mau, Bob   +2 more
openaire   +2 more sources

Early evolution of the gular musculature and its innervation in ray‐finned fishes

open access: yesThe Anatomical Record, EarlyView.
Abstract Gular muscles are an important but often overlooked component of cranial anatomy in bony fishes. They are located on the ventral surface of the head and are derived from the mandibular and hyoid arches. We present a comprehensive review of the gular musculature and its innervation across early diverging actinopterygian lineages. By integrating
Aléssio Datovo   +4 more
wiley   +1 more source

Tracheal chambers as a key innovation for high‐frequency emission in bat echolocation

open access: yesThe Anatomical Record, EarlyView.
Abstract Key innovations are pivotal for biodiversity and facilitating evolutionary success, enabling organisms' adaptation to various ecological niches through the diversification of phenotypic traits. In mammals, notable adaptations include evolving hypsodonty for grazing on grasses and, for bats, evolving echolocation and wing acquisition.
Nicolas L. M. Brualla   +7 more
wiley   +1 more source

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