Results 41 to 50 of about 3,888 (197)

Transcriptomics Unveil Dsx1 as a Critical Regulator in Sexual Dimorphism of Crustaceans

Integrative Zoology, EarlyView.
Sexually dimorphic traits are involved in reproductive competition and are shaped by sex‐biased gene expression. This study identifies Dsx1 as a key male‐biased gene in Morinoia aosen and demonstrates through RNA interference that its disruption feminizes male‐specific T3 leg structures.
Yan Tong, Wenpei Xin, Zeyu Liu, Yami Zheng, Mengyi Huang, Hongguang Liu, Decai Lu, Wei Peng, Zhonge Hou   +8 more
wiley   +1 more source

Abundance and Food Preferences of Amphipods (Crustacea: Amphipoda) in the Eastern Gulf of Finland, Baltic Sea [PDF]

Журнал Сибирского федерального университета: Серия Биология, 2016
This paper focuses on the group of the estuarine Baltic amphipods describing abundance and biomass of their representatives in the shallow- and deep water communities of the eastern part of the Gulf of Finland and assessing their food habits.
Nadezhda A. Berezina, Alexey A. Maximov
doaj  

Contribution of rare and common species to subterranean species richness patterns

Ecology and Evolution, 2019
Aim Common species contribute more to species richness patterns (SRPs) than rare species in most studies. Our aim was to test this hypothesis using a novel model system, species living exclusively in subterranean habitats.
Petra Bregović, Cene Fišer, Maja Zagmajster   +2 more
doaj   +1 more source

Osteological, Biological, and Genetic Consequences of Colonization of Fresh Waters by Marine Cottoid Fishes (Cottidae)

Integrative Zoology, EarlyView.
Lacustrine forms of Triglopsis from North American and European lakes are at different stages of evolution, making them a suitable model for testing hypotheses about evolutionary patterns and rates. An integrative analysis of morphological, genetic, and biological adaptations occurring in lacustrine forms of the genus Triglopsis was carried out.
Valentina G. Sideleva, Zakhar V. Zhidkov, Nataliia V. Annenkova, Alexander G. Ryumin, Danila A. Melentev   +4 more
wiley   +1 more source

The role of epiphytic algae and different species of Sargassum in the distribution and feeding of herbivorous amphipods

Latin American Journal of Aquatic Research, 2014
The presence of particular algal species can directly influence the distribution and abundance of mesoherbivores. The aim of this study was to answer the following questions: Do Sargassum beds of different localities show variation in the load of ...
Giuliano Buzá-Jacobucci, Fosca Pedini Pereira-Leite   +1 more
doaj  

Weaponry Investment in the Socially Monogamous Snapping Shrimp Alpheus brasileiro (Decapoda: Alpheidae)

Acta Zoologica, EarlyView.
ABSTRACT Weapons are morphological structures used by animals in various contexts, especially in intra‐specific contests and visual displays. In snapping shrimps of the genus Alpheus, particularly the monogamous species Alpheus brasileiro, both sexes bear enlarged chelipeds, potentially conferring advantages in mate competition or territorial defence ...
Leonardo Moreira, Caio Santos Nogueira, Régis Augusto Pescinelli, Rogerio Caetano Costa   +3 more
wiley   +1 more source

Functional characterization of 42 CK2α de novo variants associated with Okur‐Chung neurodevelopmental syndrome

The FEBS Journal, EarlyView.
Okur‐Chung neurodevelopmental syndrome (OCNDS) is a neurodevelopmental disorder associated with mutations in the gene coding for Protein kinase CK2α. In this work, 42 variants of CK2α associated with OCNDS were characterized in vitro. This included determination of catalytic activity and CK2α/CK2β‐interaction as well as an assessment of evolutionary ...
Alexander Gast, Christian Werner, Karsten Niefind, Joachim Jose   +3 more
wiley   +1 more source

Abundance, distribution and feeding patterns of a temperate reef fish in subtidal environments of the Chilean coast: the importance of understory algal turf Abundancia, distribución y patrones alimentarios de un pez de arrecifes templados en ambientes submareales de la costa de Chile: la importancia de la capa de algas del subdosel

Revista Chilena de Historia Natural, 2002
Cheilodactylus variegatus is an abundant carnivorous demersal reef fish that lives in the shallow subtidal of the north-central Chilean coast. Characteristically, these environments are dominated by kelp forests of Lessonia trabeculata.
ÁLVARO T. PALMA, F. PATRICIO OJEDA
doaj  

COMPARISON OF STRESS PROTEINS PARTICIPATION IN ADAPTATION MECHANISMS OF BAIKALIAN AND PALEARCTIC AMPHIPOD (AMPHIPODA; CRUSTACEA) SPECIES [PDF]

Journal of Stress Physiology & Biochemistry, 2006
The aim of the present study was a study of the influence different stressful factor on syntheses and activity of the stress proteins (HSP70, sHSP and peroxidase) of freshwater organism.
Timofeyev M.A, Shatilina Zh.M., Bedulina D.S., Protopopova M.V., Grabelnych O.I., Pobezhimova T.P., Kolesnichenko A.V.   +6 more
doaj  

Mesoscale Oceanographic Processes Drive the Seasonal Abundance of the Seabob Shrimp Xiphopenaeus spp. on the Eastern Brazilian Shelf

Fisheries Oceanography, EarlyView.
ABSTRACT The seabob shrimp (Xiphopenaeus spp.) is a primary fishery resource in Brazil, with considerable economic and social importance along the coast. While environmental drivers of its life cycle are well‐documented for southeastern and southern populations, the factors modulating populations in the Eastern Brazilian Shelf remain poorly understood,
Leandro Bonesi Rabelo, Júlio Neves de Araújo, Agnaldo Silva Martins   +2 more
wiley   +1 more source