Results 31 to 40 of about 397 (117)
Abstract Background Spermatogenesis is an elaborately organized and tightly regulated differentiation process. The spermatogenesis duration is stable within a certain species but highly variable between species of the same family. Objectives In this study, the spermatogenesis duration of the Roborovski hamster was measured for the first time, and the ...
Vivian Meyer +2 more
wiley +1 more source
Omics‐based molecular analyses of adhesion by aquatic invertebrates
ABSTRACT Many aquatic invertebrates are associated with surfaces, using adhesives to attach to the substratum for locomotion, prey capture, reproduction, building or defence. Their intriguing and sophisticated biological glues have been the focus of study for decades.
Peter A. Davey +14 more
wiley +1 more source
The repeatable opportunity for selection differs between pre‐ and postcopulatory fitness components
Abstract In species with multiple mating, intense sexual selection may occur both before and after copulation. However, comparing the strength of pre‐ and postcopulatory selection is challenging, because (i) postcopulatory processes are generally difficult to observe and (ii) the often‐used opportunity for selection (I) metric contains both ...
Lucas Marie‐Orleach +2 more
wiley +1 more source
Resilience to aging in the regeneration‐capable flatworm Macrostomum lignano [PDF]
Summary Animals show a large variability of lifespan, ranging from short‐lived as Caenorhabditis elegans to immortal as Hydra . A fascinating case is flatworms, in which reversal of aging by regeneration is proposed, yet conclusive ...
Stijn Mouton +4 more
openaire +4 more sources
Genome and transcriptome of the regeneration-competent flatworm, Macrostomum lignano [PDF]
Significance The availability of high-quality genome and transcriptome assemblies is critical for enabling full exploitation of any model organism. Here we present genome and transcriptome assemblies for Macrostomum lignano , a free-living flatworm that can regenerate nearly
Wasik, Kaja A. +14 more
openaire +6 more sources
Adhesive organ regeneration in Macrostomum lignano [PDF]
Abstract Background Flatworms possess pluripotent stem cells that can give rise to all cell types, which allows them to restore lost body parts after injury or amputation. This makes flatworms excellent model systems for studying regeneration. In this study, we present the adhesive organs of a marine flatworm as a simple
Lengerer, Birgit +4 more
openaire +3 more sources
Marano and Grado Lagoon: Narrowing of the Lignano Inlet
Abstract The morphological evolution of a lagoon tidal inlet over a medium-long period is a very important research topic since it can greatly affect both the hydrodynamic balance of the coastal environment and all the several human activities related to its proper functioning. The morphodynamic balance, which is the result mainly of the
Petti M., Bosa S., Pascolo S., Uliana E.
openaire +1 more source
Demographic analysis reveals gradual senescence in the flatworm Macrostomum lignano [PDF]
Free-living flatworms ("Turbellaria") are appropriate model organisms to gain better insight into the role of stem cells in ageing and rejuvenation. Ageing research in flatworms is, however, still scarce. This is partly due to culture difficulties and the lack of a complete set of demographic data, including parameters such as median lifespan and age ...
Mouton, Stijn +4 more
openaire +3 more sources
knockdown of the putative SFP Mlig‐pro63 resulted in a significantly decreased ‘suck’ propensity of mating partners upon ejaculate receipt, a behaviour by which the worm apparently attempts to remove the received ejaculate. Abstract The seminal fluid proteins (SFPs) transferred to mating partners along with sperm often play crucial roles in mediating ...
Michael Weber +2 more
wiley +1 more source
Mlig-SKP1 Gene Is Required for Spermatogenesis in the Flatworm Macrostomum lignano
In a free-living flatworm, Macrostomum lignano, an S-phase kinase-associated protein 1 (SKP1) homologous gene was identified as enriched in proliferating cells, suggesting that it can function in the regulation of stem cells or germline cells since these are the only two types of proliferating cells in flatworms.
Mikhail Biryukov +7 more
openaire +3 more sources

