Results 101 to 110 of about 14,821 (174)

The Role of Gene Flow in the Diversification of the Monkey Treefrog Complex Across the South American Dry Diagonal

open access: yesZoologica Scripta, EarlyView.
ABSTRACT Understanding Neotropical megadiversity remains challenging due to fundamental taxonomic issues, including identifying and describing cryptic species and their distribution, and the limited knowledge of key factors driving biological diversification. Such challenges are especially prominent in diverse clades with high levels of cryptic species,
Felipe Camurugi   +10 more
wiley   +1 more source

Estimating Speciation and Extinction Rates for Phylogenies of Higher Taxa [PDF]

open access: yes, 2017
Speciation and extinction rates can be estimated from molecular phylogenies. Recently, a number of methods have been published showing that these rates can be estimated even if the phylogeny is incomplete, that is, if not all extant species are included.
Bokma, Folmer, Stadler, Tanja
core  

Evolution of Crematogaster sordidula (Hymenoptera, Formicidae) Ants in the Mediterranean Region During Plio‐Pleistocene Climatic Changes

open access: yesZoologica Scripta, EarlyView.
ABSTRACT Understanding insect responses to global climate change involves identifying strategies used during past climate oscillations. Phylogeography offers a powerful framework to unravel how historical climatic and geological events have shaped the spatial genetic patterns of species, providing critical insights into evolutionary processes, whereas ...
Jody H. Voges   +12 more
wiley   +1 more source

Rare uniparental lineages reveal external ancestries in the gene pool of the Italian linguistic enclave of Grecìa Salentina

open access: yesScientific Reports
Can language be a valuable predictor of genetic diversity even at the level of extremely circumscribed areas of linguistic diversity? We report on the analysis of mtDNA and NRY variation extracted from the whole-genome sequencing of 27 natives of Grecìa ...
Francesca Menato   +15 more
doaj   +1 more source

Mitochondrial Markers COI and 16S rRNA for the Molecular Identification of Parrots and Macaws Recovered From Illegal Trafficking in Three Areas of Colombia

open access: yesEcology and Evolution, Volume 16, Issue 4, April 2026.
We molecularly characterized parrots (Amazona spp.) and macaws (Ara spp.) rescued from illegal trafficking in Colombia using two mitochondrial markers (COI and 16S rRNA). The COI gene showed high resolution for species identification and revealed considerable intraspecific diversity, while 16S rRNA displayed limited taxonomic resolution.
Julián Marín‐Villa   +3 more
wiley   +1 more source

Structural and evolutionary dissection of NADPH‐binding motifs in NADPH‐preferring ene‐reductases

open access: yesProtein Science, Volume 35, Issue 4, April 2026.
Abstract Ene‐reductases (ERs) catalyze nicotinamide‐dependent, stereoselective reductions of activated CC bonds. While their catalytic chemistry and applications are well‐explored, cosubstrate (NAD(P)H) binding remains poorly understood. Most ERs strongly prefer NADPH despite lacking canonical dinucleotide‐binding folds and instead employ flexible ...
Bianca Kerschbaumer   +7 more
wiley   +1 more source

Colletotrichum species with curved conidia from herbaceous hosts [PDF]

open access: yes, 2009
Colletotrichum (Glomerellaceae, Sordariomycetes) species with dark setae and curved conidia are known as anthracnose pathogens of a number of economically important hosts and are often identified as C. dematium.
Cannon, P.F.   +3 more
core   +1 more source

Incomplete lineage sorting and hybridization as sources of gene tree discordance among species of the Geminata clade of Solanum (Solanaceae)

open access: yesTAXON, Volume 75, Issue 2, April 2026.
Abstract Discordance among gene trees, including discrepancies with the species tree, is increasingly reported in analyses of phylogenomic data. Such discordance can result from technical issues such as misalignment, paralogy, or model misfit, or from biological processes such as incomplete lineage sorting (ILS), hybridization with introgression, or ...
Juan David Tovar   +6 more
wiley   +1 more source

Differences in mycelial turnover and persistence of wood‐decay fungi at the microscale

open access: yesNew Phytologist, Volume 250, Issue 1, Page 577-590, April 2026.
Summary How long do fungal hyphae persist in the environment? And how does this differ between groups and species of fungi? Despite growing knowledge of fungal contributions to decomposition and soil carbon cycles, surprisingly little is known about the turnover of mycelia: What happens to fungal hyphae over time? And how this impacts different fungi's
Roos‐Marie I. J. van Bokhoven   +2 more
wiley   +1 more source

In perennial Arabis alpina, CONSTANS and FLOWERING LOCUS T have common and distinct effects on flowering and inflorescence architecture

open access: yesNew Phytologist, Volume 250, Issue 2, Page 970-987, April 2026.
Summary Flowering of perennial Arabis alpina is differentially regulated on primary and axillary shoots. Although contributions of vernalization and ageing pathways have been analysed, those of photoperiodic flowering genes CONSTANS (CO), FLOWERING LOCUS T (FT), and TWIN‐SISTER OF FT (TSF) remain unexplored.
Niharika Sashidhar, George Coupland
wiley   +1 more source

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