Results 21 to 30 of about 4,193 (178)
Reproductive Biology, Sperm storage, and Sexual Maturity of Thamnodynastes strigatus (Serpentes: Dipsadidae) [PDF]
Anais da Academia Brasileira de Ciências, 2022 Life history strategies determine and influence many aspects of species fitness. In this study, we describe the reproductive biology - reproductive cycle, sperm storage, and sexual maturity - of Thamnodynastes strigatus in South Brazil.
LUIZA LOEBENS +3 more
doaj +1 more source
DDX6 Is Essential for Oocyte Development and Maturation in Locusta migratoria
Insects, 2021 DEAD-box protein 6 (DDX6) is a member of the DDX RNA helicase family that exists in all eukaryotes. It has been extensively studied in yeast and mammals and has been shown to be involved in messenger ribonucleoprotein assembly, mRNA storage, and decay ...
Junxiu Wang +5 more
doaj +1 more source
Frontiers in Cellular and Infection Microbiology, 2020 Ticks are blood-sucking vector arthropods, which play an important role in transmitting pathogens between humans and animals. RH36 is an immunomodulatory protein expressed in the salivary glands, but not other organs, of partially fed Rhipicephalus ...
Fangfang Wang +8 more
doaj +1 more source
Tracking the Pulse of the Dunes: Seasonal Metabolic Responses of Liolaemus arambarensis to Climatic Variability. [PDF]
J Exp Zool A Ecol Integr PhysiolABSTRACT Seasonal environmental fluctuations profoundly influence ectothermic vertebrates, regulating their physiology, metabolism, and life cycles. This study investigated the metabolic and morphometric seasonal dynamics of the subtropical sand lizard Liolaemus arambarensis, an endangered species endemic to the coastal dunes of southern Brazil.
Valgas AAN +5 more
europepmc +2 more sources
BMC Genomics, 2009 Background In oviparous vertebrates, including fish, vitellogenesis consists of highly regulated pathways involving 17β-estradiol (E2). Previous studies focused on a relatively small number of hepatic expressed genes during vitellogenesis.
Hyslop Terry +7 more
doaj +1 more source
Gonadal proliferation and reproductive cycle of the exotic sea squirt Cnemidocarpa amphora () (Pleurogona, Styelidae) sampled for the first time from the northern coast of Arabian Gulf in Saudi Arabia [PDF]
Brazilian Journal of Biology, 2023 Specimens of Cnemidocarpa amphora were collected monthly from the Arabian Gulf from September 2017 to August 2018. Parts of their gonads were prepared for histological testing. The gonads’ diameters varied by month.
N. A. AlQurashi, G. Ibrahim
doaj +1 more source
Frontiers in Marine Science, 2022 Developmental profile of the female reproductive apparatus (the externa) of Polyascus planus parasitizing the thukuhar shore-crab Metopograpsus thukuhar is described.
Hsiang-Yin Chen +6 more
doaj +1 more source
Mechanisms of Egg Yolk Formation and Implications on Early Life History of White Perch (Morone americana). [PDF]
PLoS ONE, 2015 The three white perch (Morone americana) vitellogenins (VtgAa, VtgAb, VtgC) were quantified accurately and precisely in the liver, plasma, and ovary during pre-, early-, mid-, and post-vitellogenic oocyte growth using protein cleavage-isotope dilution ...
Justin Schilling +4 more
doaj +1 more source
Anais da Academia Brasileira de Ciências, 2022 Macrobrachium acanthurus is a caridean prawn native to Brazil, and studying techniques to assist in its cultivation is important due to economic interest in it.
MARIA M. RODRIGUES +3 more
doaj +1 more source
Vitellogenesis in Blue Gourami is Accompanied by Brain Transcriptome Changes
Fishes, 2019 The blue gourami (Trichogaster trichopterus) is a model for hormonal control of reproduction in Anabantidae fish, but also relevant to other vertebrates.
Gad Degani +3 more
doaj +1 more source