Results 31 to 40 of about 5,688 (123)
ParaHox Genes Revisited: From Gut Patterning to Integrated Axial and Neural Organization in Rotifera
In rotifers, ParaHox genes show a dispersed genomic organization, with Xlox absent across gnathiferans. Exclusive neuronal expression of Gsx and Cdx reveals that ancestral ParaHox genes coordinated neural and epithelial development beyond gut patterning, suggesting an integrated role in early bilaterian body plan organization.
Andreas C. Fröbius +2 more
wiley +1 more source
Modes, mechanisms and evidence of bet hedging in rotifer diapause traits [PDF]
In this contribution, we review our knowledge on bet-hedging strategies associated with rotifer diapause. First, we describe the ecological scenario under which bet hedging is likely to have evolved in three diapause-related traits in monogonont rotifer ...
Serra Galindo, Manuel +2 more
core +1 more source
Increasing evidence suggests that bdelloid rotifers regularly undergo horizontal gene transfer, apparently as a surrogate mechanism of genetic exchange in the absence of true sexual reproduction, in part because of their ability to withstand desiccation.
Olaf R. P. Bininda-Emonds +2 more
doaj +1 more source
Abstract Dispersal is a complex process that affects all living organisms, with the settlement phase being particularly critical. This phase depends on the interaction between the environmental conditions of the new habitat and the biological traits of both resident and immigrant populations.
Cristina Arenas‐Sánchez +4 more
wiley +1 more source
Purpose. To find out the present state of the structural and functional organization of the littoral zooplankton communities of the upper Kremenchuk reservoir in the area of the Kaniv Nature Reserve. Methodology.
Z. Burian, V. Gandziura, V. Trokhymets
doaj +1 more source
Abstract Environmental variability imposes strong selective pressures that may favor adaptive responses such as phenotypic plasticity and bet hedging. Plasticity is generally favored under predictable conditions, whereas bet hedging is advantageous against environmental uncertainty. Plastic responses rely on reliable cues to adjust phenotypes to future
Carlota Solano‐Udina +2 more
wiley +1 more source
Rotifers perform key functions in aquatic food webs and respond to environmental changes, thus providing sensitive indicators of water quality. However, rotifers are small, highly diverse, and difficult to identify for those lacking expertise. Monogononta are the largest taxonomic class of rotifers with over 1500 species described globally, and around ...
Gemma E. Collins +7 more
wiley +1 more source
Inter-species sex: male-inducing experiments with the rotifer Keratella cochlearis
In the genus Brachionus (Monogononta) the switch from asexual to sexual reproduction is triggered by a chemical signal produced by the species. In Brachionus, the main environmental trigger for production of this chemical cue is crowding but for other ...
Weisse, T. +2 more
core +1 more source
We compared life‐table parameters and trans‐generation (F0–F12) morphological developmental plasticity induced by Asplanchna kairomones between two Brachionus dorcas morphotypes (long‐posterior spines, LS; short‐posterior spines, SS). The results revealed that the SS offspring employed a synergistic defense combining increased body size and spine ...
Yali Ge +6 more
wiley +1 more source
Niche separation of two cryptic species through temperature‐dependent hatching
Abstract Understanding coexistence between species is a central goal in community ecology. In particular, species of cryptic species complexes that often occur in the same habitats and are morphologically almost identical are interesting subjects for the study of eco‐evolutionary processes.
Julia Pawlak +3 more
wiley +1 more source

