Results 31 to 40 of about 107,955 (286)

Climate Warming as a Possible Trigger of Keystone Mussel Population Decline in Oligotrophic Rivers at the Continental Scale

Scientific Reports, 2018
The effects of climate change on oligotrophic rivers and their communities are almost unknown, albeit these ecosystems are the primary habitat of the critically endangered freshwater pearl mussel and its host fishes, salmonids.
Ivan N. Bolotov, Alexander A. Makhrov, Mikhail Yu. Gofarov, Olga V. Aksenova, Paul E. Aspholm, Yulia V. Bespalaya, Mikhail B. Kabakov, Yulia S. Kolosova, Alexander V. Kondakov, Thomas Ofenböck, Andrew N. Ostrovsky, Igor Yu. Popov, Ted von Proschwitz, Mudīte Rudzīte, Māris Rudzītis, Svetlana E. Sokolova, Ilmari Valovirta, Ilya V. Vikhrev, Maxim V. Vinarski, Alexey A. Zotin   +19 more
doaj   +1 more source

Combining morphological and genomic evidence to resolve species diversity and study speciation processes of the Pallenopsis patagonica (Pycnogonida) species complex

Frontiers in Zoology, 2019
Background Pallenopsis patagonica (Hoek, 1881) is a morphologically and genetically variable sea spider species whose taxonomic classification is challenging.
Jana S. Dömel, Till-Hendrik Macher, Lars Dietz, Sabrina Duncan, Christoph Mayer, Andrey Rozenberg, Katherine Wolcott, Florian Leese, Roland R. Melzer   +8 more
doaj   +1 more source

Annotated check-list of Pteromalidae (Hymenoptera: Chalcidoidea) of Morocco. Part II.

Graellsia, 2021
En esta segunda parte, presentamos la subfamilia Pteromalinae en Marruecos, que incluye 86 especies pertenecientes a 50 géneros. Quince géneros y 37 especies se enumeran por primera vez en la fauna marroquí, de las cuales 9 han sido recientemente ...
Khadija Kissayi, Mircea-Dan Mitroiu, Latifa Rohi   +2 more
doaj   +1 more source

Phylogenetic Comparative Methods on Phylogenetic Networks with Reticulations [PDF]

Systematic Biology, 2017
Abstract The goal of phylogenetic comparative methods (PCMs) is to study the distribution of quantitative traits among related species. The observed traits are often seen as the result of a Brownian Motion (BM) along the branches of a phylogenetic tree.
Bastide, Paul, Solís-Lemus, Claudia, Kriebel, Ricardo, Sparks, K. William, Ané, Cécile   +4 more
openaire   +3 more sources

The effects of fossil taxa, hypothetical predicted ancestors, and a molecular scaffold on pseudoextinction analyses of extant placental orders.

PLoS ONE, 2021
Pseudoextinction analyses, which simulate extinction in extant taxa, use molecular phylogenetics to assess the accuracy of morphological phylogenetics. Previous pseudoextinction analyses have shown a failure of morphological phylogenetics to place some ...
Peggy L Brady, Mark S Springer
doaj   +1 more source

Molecular bases of circadian magnesium rhythms across eukaryotes

FEBS Letters, EarlyView.
Circadian rhythms in intracellular [Mg2+] exist across eukaryotic kingdoms. Central roles for Mg2+ in metabolism suggest that Mg2+ rhythms could regulate daily cellular energy and metabolism. In this Perspective paper, we propose that ancestral prokaryotic transport proteins could be responsible for mediating Mg2+ rhythms and posit a feedback model ...
Helen K. Feord, Gerben van Ooijen
wiley   +1 more source

Hippo pathway phylogenetics predicts monoubiquitylation of Salvador and Merlin/Nf2. [PDF]

PLoS ONE, 2012
Recently we employed phylogenetics to predict that the cellular interpretation of TGF-β signals is modulated by monoubiquitylation cycles affecting the Smad4 signal transducer/tumor suppressor. This prediction was subsequently validated by experiments in
Robert G Wisotzkey, Charlotte E Konikoff, Stuart J Newfeld   +2 more
doaj   +1 more source

Gut microbiota diversity is prognostic in metastatic hormone receptor‐positive breast cancer patients receiving chemotherapy and immunotherapy

Molecular Oncology, EarlyView.
In this exploratory study, we investigated the relationship between the gut microbiota and outcome in patients with metastatic hormone receptor‐positive breast cancer, treated in a randomized clinical trial with chemotherapy alone or chemotherapy in combination with immune checkpoint blockade.
Andreas Ullern, Kristian Holm, Nikolai Kragøe Andresen, Andreas Hagen Røssevold, Corinna Bang, Bjørn Naume, Johannes R. Hov, Jon Amund Kyte   +7 more
wiley   +1 more source

Positive selection and relaxed purifying selection contribute to rapid evolution of sex-biased genes in green seaweed Ulva

BMC Ecology and Evolution
Background The evolution of differences in gamete size and number between sexes is a cornerstone of sexual selection theories. The green macroalga Ulva, with incipient anisogamy and parthenogenetic gametes, provides a unique system to investigate ...
Xiaojie Liu, Jonas Blomme, Kenny A. Bogaert, Sofie D’hondt, Emma Coulembier Vandelannoote, Thomas Wichard, Olivier De Clerck   +6 more
doaj   +1 more source

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

Plant 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