Results 61 to 70 of about 13,138 (208)

Vitellogenin Receptor as a Target for Tick Control: A Mini-Review

Frontiers in Physiology, 2019
While much effort has been put into understanding vitellogenesis in insects and other organisms, much less is known of this process in ticks. There are several steps that facilitate yolk formation in developing oocytes of which the vitellogenin receptor (
Robert D. Mitchell, Daniel E. Sonenshine, Daniel E. Sonenshine, Adalberto A. Pérez de León   +3 more
doaj   +1 more source

Regulation of ovigericity in a fresh water prawn macrobrachium lanchesteri (de Man) [PDF]

, 1985
Summary The intermoult duration of ovigerous Macrobrachium lanchesteri, between the pre-spawning and the post-parturial moults, is significantly long, twice that of the adult non-ovigerous females.
Katre Shakuntala, ., Narasimha Rao, C.H., Ravichandra Reddy, S.   +2 more
core   +1 more source

Revisiting Maturity Data: Using Oocyte Diameter and Gonadosomatic Index to Retroactively Apply a New Maturity Scale to Greenland Halibut (Reinhardtius hippoglossoides)

Fisheries Management and Ecology, EarlyView.
ABSTRACT Greenland halibut (Reinhardtius hippoglossoides) is a deep‐water flatfish which lives at temperatures of 1°C–4°C and produces large eggs (> 3 mm). The combination of low temperatures and large eggs has resulted in an unusual ovary development cycle, with vitellogenesis taking more than 1 year.
James Kennedy, Ásgeir Gunnarsson, Svanhildur Egilsdóttir, Bjarki Þór Elvarsson   +3 more
wiley   +1 more source

Transcriptomic Analysis of the Kuruma Prawn Marsupenaeus japonicus Reveals Possible Peripheral Regulation of the Ovary

Frontiers in Endocrinology, 2020
Crustacean reproduction has been hypothesized to be under complex endocrinological regulation by peptide hormones. To further improve our understanding of the mechanisms underlying this complex regulation, knowledge is needed regarding the hormones not ...
Naoaki Tsutsui, Naoaki Tsutsui, Yasuhisa Kobayashi, Yasuhisa Kobayashi, Kouichi Izumikawa, Tatsuya Sakamoto   +5 more
doaj   +1 more source

Endocrine Regulation of Maturation and Sex Change in Groupers

Cells, 2022
Groupers are widely distributed in tropical and subtropical areas worldwide, are key species to coastal ecosystems, and valuable fishery targets. To facilitate artificial seed production technology for grouper aquaculture, the mechanisms of reproduction ...
Kiyoshi Soyano, Takafumi Amagai, Tomofumi Yamaguchi, Yuji Mushirobira, Wen-Gang Xu, Nhan Thành Phạm, Ryosuke Murata   +6 more
doaj   +1 more source

Cloning of the Neurodegeneration Gene \u3cem\u3eDrop-Dead\u3c/em\u3e and Characterization of Additional Phenotypes of its Mutation [PDF]

, 2008
Mutations in the Drosophila gene drop-dead (drd) result in early adult lethality and neurodegeneration, but the molecular identity of the drd gene and its mechanism of action are not known.
Blumenthal, Edward M.
core   +1 more source

Plasticity in the reproductive biology of Yellowstone cutthroat trout Oncorhynchus virginalis bouvieri in Yellowstone Lake following lake trout Salvelinus namaycush invasion

Journal of Fish Biology, EarlyView.
Abstract Yellowstone cutthroat trout Oncorhynchus virginalis bouvieri in Yellowstone Lake are the focus of intensive conservation efforts due to the threat of predation by invasive lake trout Salvelinus namaycush. Suppression gillnetting has reduced the abundance of predatory lake trout, and the Yellowstone cutthroat trout population is recovering ...
Michelle A. Briggs, Molly A. H. Webb, Christopher S. Guy, Todd M. Koel   +3 more
wiley   +1 more source

Characterization of a native whitefly vitellogenin gene cDNA and its expression pattern compared with two invasive whitefly cryptic species

Journal of Integrative Agriculture, 2016
The whitefly Bemisia tabaci is a species complex, of which two invasive species, called MEAM1 and MED whiteflies, have invaded many parts of the world in the past 30 years and replaced native whitefly populations in many regions of invasions including ...
Jian-yang GUO, Yu-ping DU, Fang-hao WAN, Gong-yin YE   +3 more
doaj   +1 more source

Unravelling the changes during induced vitellogenesis in female European eel through RNA-Seq: What happens to the liver?

PLoS ONE, 2020
The life cycle of European eel (Anguilla anguilla), a catadromous species, is complex and enigmatic. In nature, during the silvering process prior to their long spawning migration, reproductive development is arrested, and they cease feeding.
Francesca Bertolini, Michelle Grace Pinto Jørgensen, Christiaan Henkel, Sylvie Dufour, Jonna Tomkiewicz   +4 more
doaj   +1 more source

Insights on Molecular Mechanisms of Ovarian Development in Decapod Crustacea: Focus on Vitellogenesis-Stimulating Factors and Pathways

Frontiers in Endocrinology, 2020
Vitellogenesis in crustaceans is an energy-consuming process. Though the underlying mechanisms of ovarian maturation in decapod Crustacea are still unclear, evidence indicates the process to be regulated by antagonistically-acting inhibitory and ...
Vidya Jayasankar, Sherly Tomy, Marcy N. Wilder   +2 more
doaj   +1 more source