Results 131 to 140 of about 501,430 (279)

Three-Way Alignment Improves Multiple Sequence Alignment of Highly Diverged Sequences

open access: yesAlgorithms
The standard approach for constructing a phylogenetic tree from a set of sequences consists of two key stages. First, a multiple sequence alignment (MSA) of the sequences is computed.
Mahbubeh Askari Rad   +2 more
doaj   +1 more source

Comparison of Three Methods for Estimating Internal Support on Phylogenetic Trees [PDF]

open access: bronze, 2000
Mark E. Mort   +3 more
openalex   +1 more source

The PteridoPortal: A publicly accessible collection of over three million records of extant and extinct pteridophytes

open access: yesApplications in Plant Sciences, EarlyView.
Abstract Premise Pteridophytes—vascular land plants that disperse by spores—are a powerful system for studying plant evolution, particularly with respect to the impact of abiotic factors on evolutionary trajectories through deep time. However, our ability to use pteridophytes to investigate such questions—or to capitalize on the ecological and ...
Carl J. Rothfels   +67 more
wiley   +1 more source

Orexinergic neurons in the hypothalami of an Asiatic lion, an African lion, and a Southeast African cheetah

open access: yesJournal of Comparative Neurology, Volume 531, Issue 3, Page 366-389, February 2023., 2023
Photomicrograph of orexinergic neurons forming the main orexinergic neuronal cluster in the hypothalamus of a Southeast African cheetah. While showing the standard features of the orexinergic system, the Southeast African cheetah, along with an Asiatic and an African lion, also exhibits specializations in the organization of this system.
Demi Oddes   +8 more
wiley   +1 more source

Spatial Phylogenetics of Florida Vascular Plants: The Effects of Calibration and Uncertainty on Diversity Estimates

open access: yesiScience, 2019
Summary: Recent availability of biodiversity data resources has enabled an unprecedented ability to estimate phylogenetically based biodiversity metrics over broad scales.
Julie M. Allen   +13 more
doaj  

Multiple maxima of likelihood in phylogenetic trees [PDF]

open access: bronze, 2000
Benny Chor   +3 more
openalex   +1 more source

A new spin on chemotaxonomy: Using non‐proteogenic amino acids as a test case

open access: yesApplications in Plant Sciences, EarlyView.
Abstract Premise Specialized metabolites serve various roles for plants and humans. Unlike core metabolites, specialized metabolites are restricted to certain plant lineages; thus, in addition to their ecological functions, specialized metabolites can serve as diagnostic markers of plant lineages.
Makenzie Gibson   +4 more
wiley   +1 more source

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