Results 21 to 30 of about 1,515 (185)

The Paramecium germline genome provides a niche for intragenic parasitic DNA: evolutionary dynamics of internal eliminated sequences. [PDF]

PLoS Genetics, 2012
Insertions of parasitic DNA within coding sequences are usually deleterious and are generally counter-selected during evolution. Thanks to nuclear dimorphism, ciliates provide unique models to study the fate of such insertions.
Olivier Arnaiz, Nathalie Mathy, Céline Baudry, Sophie Malinsky, Jean-Marc Aury, Cyril Denby Wilkes, Olivier Garnier, Karine Labadie, Benjamin E Lauderdale, Anne Le Mouël, Antoine Marmignon, Mariusz Nowacki, Julie Poulain, Malgorzata Prajer, Patrick Wincker, Eric Meyer, Sandra Duharcourt, Laurent Duret, Mireille Bétermier, Linda Sperling   +19 more
doaj   +1 more source

gauseR: Simple methods for fitting Lotka-Volterra models describing Gause's "Struggle for Existence". [PDF]

Ecol Evol, 2020
The competition and predation experiments conducted by G. F. Gause in the first half of the 20th century remain some of the best‐known empirical tests of Alfred Lotka and Vito Volterra's models of species interactions. Here, we collate data from more than 40 of these experiments, along with basic tools for fitting the Lokta‐Volterra models to empirical
Mühlbauer LK, Schulze M, Harpole WS, Clark AT.   +3 more
europepmc   +2 more sources

Food niches of planktonic rotifers: Diversification and implications

Limnology and Oceanography, Volume 67, Issue 10, Page 2218-2251, October 2022., 2022
Abstract The diverse diets of common planktonic rotifers are described in detail from field and laboratory observations and experiments. Also considered are methodological approaches, rotifer feeding mechanisms, and the availability in natural waters of less well‐known food items (detritus, picoplankton, protozoans).
John J. Gilbert
wiley   +1 more source

Bacterial symbiosis in ciliates (Alveolata, Ciliophora): Roads traveled and those still to be taken

Journal of Eukaryotic Microbiology, Volume 69, Issue 5, September/October 2022., 2022
Abstract The diversity of prokaryotic symbionts in Ciliophora and other protists is fascinatingly rich; they may even include some potentially pathogenic bacteria. In this review, we summarize currently available data on biodiversity and some morphological and biological peculiarities of prokaryotic symbionts mainly within the genera Paramecium and ...
Sergei I. Fokin, Valentina Serra
wiley   +1 more source

Paramecium epigenetics in development and proliferation

Journal of Eukaryotic Microbiology, Volume 69, Issue 5, September/October 2022., 2022
Abstract The term epigenetics is used for any layer of genetic information aside from the DNA base‐sequence information. Mammalian epigenetic research increased our understanding of chromatin dynamics in terms of cytosine methylation and histone modification during differentiation, aging, and disease.
Franziska Drews, Jens Boenigk, Martin Simon   +2 more
wiley   +1 more source

Ciliate research: From myth to trendsetting science

Journal of Eukaryotic Microbiology, Volume 69, Issue 5, September/October 2022., 2022
Abstract This special issue of the Journal of Eukaryotic Microbiology (JEM) summarizes achievements obtained by generations of researchers with ciliates in widely different disciplines. In fact, ciliates range among the first cells seen under the microscope centuries ago.
Helmut Plattner
wiley   +1 more source

Contributions of mean temperature and temperature variation to population stability and community diversity

Ecology and Evolution, Volume 12, Issue 2, February 2022., 2022
Climatic changes are predicted to alter mean temperatures and fluctuations in temperature. Here, we show that increased mean temperatures are generally associated with negative impacts on biodiversity. However, these negative impacts can be partially reduced if fluctuations in temperature are maintained. Abstract Future climate changes are predicted to
Edd Hammill, Riley Dart
wiley   +1 more source

Body size and shape responses to warming and resource competition

Functional Ecology, Volume 35, Issue 7, Page 1460-1469, July 2021., 2021
A free Plain Language Summary can be found within the Supporting Information of this article. Abstract Body size is a fundamental trait that impacts many aspects of species biology and ecology. It is, in turn, influenced by a suite of environmental factors, and often decreases with warming.
Hanrong Tan, Andrew G. Hirst, David Atkinson, Pavel Kratina   +3 more
wiley   +1 more source

The mitochondrial genomes of the ciliates Euplotes minuta and Euplotes crassus

BMC Genomics, 2009
Background There are thousands of very diverse ciliate species from which only a handful mitochondrial genomes have been studied so far. These genomes are rather similar because the ciliates analysed (Tetrahymena spp.
Huynh Minh, van Zoggel Hanneke JAA, Kuiper Jan WP, Dutilh Bas E, van Alen Theo A, de Graaf Rob M, Görtz Hans-Dieter, Huynen Martijn A, Hackstein Johannes HP   +8 more
doaj   +1 more source

Coexistence via resource partitioning fails to generate an increase in community function. [PDF]

PLoS ONE, 2012
Classic ecological theory suggests that resource partitioning facilitates the coexistence of species by reducing inter-specific competition. A byproduct of this process is an increase in overall community function, because a greater spectrum of resources
John P DeLong, David A Vasseur
doaj   +1 more source