Results 51 to 60 of about 47,945 (287)

From junk to function — How weak selection in eukaryotes builds new parts and drives genomic complexity

open access: yesFEBS Letters, EarlyView.
How do genomes gain new functional parts? In eukaryotes, which tend to evolve under weak selection, much of the genome is junk. Palazzo and Qiu borrow the logic of Markov chains to show how non‐functional DNA becomes functional through the appearance of intermediate states, which arise due to epistasis, buffering, and biochemical messiness, allowing ...
Alexander F. Palazzo, Yi Qiu
wiley   +1 more source

The first mitochondrial genome of Calophyllum soulattri Burm.f.

open access: yesScientific Reports
Calophyllum soulattri Burm.f. is traditionally used to treat skin infections and reduce rheumatic pain, yet genetic and genomic studies are still limited. Here, we present the first complete mitochondrial genome of C. soulattri.
Charles Anthon E. Cadorna   +2 more
doaj   +1 more source

Strong intraspecific trait variation in a tropical dominant tree species along an elevational gradient

open access: yesPlant Diversity, 2020
Functional trait variation of plant species includes both inter- and intraspecific variation; however, trait-based plant ecology generally considers only interspecific variation while ignoring intraspecific variation.
Wumei Xu, Kyle W. Tomlinson, Jie Li
doaj   +1 more source

The noctuid moth Xylomoia graminea (Lepidoptera: Noctuidae) new to the Romanian fauna [PDF]

open access: yesTravaux du Muséum National d’Histoire Naturelle “Grigore Antipa”, 2020
In this paper, new data concerning the occurrence and distribution of Xylomoia graminea (Graeser, 1889) in Romania are given. Pictures of specimen and male genitalia are provided.
Constantin Corduneanu   +3 more
doaj   +3 more sources

The heterodimeric amino acid transporters (HAT) of the SLC7/SLC3 family: A structure−function relationships and relevance to human pathology

open access: yesFEBS Letters, EarlyView.
Heterodimeric amino acid transporters consist of SLC7 and SLC3 family proteins arranged in a conserved structural organization. They regulate nutrient transport across cell membranes, supporting essential cellular functions. These transporters also contribute to xenobiotic/drug uptake and distribution.
Mariafrancesca Scalise   +5 more
wiley   +1 more source

The phylogenetic regression

open access: yesPhilosophical Transactions of the Royal Society of London. B, Biological Sciences, 1989
Abstract A new statistical method called the phylogenetic regression is proposed that applies multiple regression techniques to cross-species data. It allows continuous and categorical variables to be tested for and controlled for. The new method is valid despite the problem that phylogenetically close species tend to be similar, and ...
openaire   +2 more sources

Phylogenetics and the origin of species [PDF]

open access: yesProceedings of the National Academy of Sciences, 1997
A recent criticism that the biological species concept (BSC) unduly neglects phylogeny is examined under a novel modification of coalescent theory that considers multiple, sex-defined genealogical pathways through sexual organismal pedigrees. A competing phylogenetic species concept (PSC) also is evaluated from this vantage.
Avise, John C, Wollenberg, Kurt
openaire   +4 more sources

Membrane composition and thermodynamic identity as boundaries of life for synthetic cell research

open access: yesFEBS Letters, EarlyView.
What makes a cell a cell? The boundary of a living cell is not just a wall. Read as a Markov blanket, the membrane separates internal from external states, generating identity and non‐equilibrium order. Can this identity be rebuilt from scratch in a synthetic cell?
Caterina Presutti, Bert Poolman
wiley   +1 more source

A Non-Destructive Method, Micro-CT, Supports the Identification of Three New Casmara Species from Sumatra and Taiwan (Lepidoptera: Ashinagidae)

open access: yesInsects
Insects exhibit diverse ecological characteristics, but species identification is challenging due to high morphological similarity. Traditional methods require genitalia dissection, which damages specimens and flattens three-dimensional structures ...
In-Won Jeong, Sora Kim, John B. Heppner
doaj   +1 more source

Aureoboletus projectellus (Fungi, Boletales) – Occurrence data, environmental layers and habitat suitability models for North America and Europe

open access: yesData in Brief, 2019
Aureoboletus projectellus is a bolete species native to eastern North America, which has been introduced to Central Europe. Here we present summarized data about occurrence of the fungus in both disjunctive ranges based on (1) de novo georeferencing of ...
Łukasz Banasiak   +6 more
doaj   +1 more source

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