Results 71 to 80 of about 36,504 (227)

Analysis of Gene Expression in Aedes aegypti Suggests Changes in Early Genetic Control of Mosquito Development

open access: yesJournal of Experimental Zoology Part B: Molecular and Developmental Evolution, EarlyView.
ABSTRACT Aedes aegypti, a critical vector for tropical diseases, poses significant challenges for studying its embryogenesis due to difficulties in removing its rigid chorion and achieving effective fixation for in situ hybridization. Here, we present novel methodologies for fixation, dechorionation, DAPI staining, and in situ hybridization, enabling ...
Renata Coutinho‐dos‐Santos   +8 more
wiley   +1 more source

Spatiotemporal dynamics of early oogenesis in pigs

open access: yesGenome Biology
Background In humans and other mammals, the process of oogenesis initiates asynchronously in specific ovarian regions, leading to the localization of dormant and growing follicles in the cortex and medulla, respectively; however, the current ...
Wei Ge   +14 more
doaj   +1 more source

Calcitonin‐like diuretic hormone influences reproduction in adult female Rhodnius prolixus

open access: yesInsect Science, EarlyView.
Highlights • CT/DH‐like immunoreactivity is present in female reproductive tissues • CT/DH receptor transcripts are expressed in the fat body and ovaries • RNAi knockdown of CT/DH receptors reduces egg number and hatching rate • Rhopr‐CT/DH increases RhoprVg1 and RhoprVgR expression in ovaries in vitro • Rhopr‐CT/DH stimulates oviduct contractions in a
Areej N. Al‐Dailami   +2 more
wiley   +1 more source

Juvenile Hormone Activates the Transcription of Cell-division-cycle 6 (Cdc6) for Polyploidy-dependent Insect Vitellogenesis and Oogenesis*

open access: yesJournal of Biological Chemistry, 2016
Although juvenile hormone (JH) is known to prevent insect larval metamorphosis and stimulate adult reproduction, the molecular mechanisms of JH action in insect reproduction remain largely unknown.
Zhongxia Wu   +3 more
semanticscholar   +1 more source

LsFAMeT and LsJHAMT coordinate JH biosynthesis to regulate fecundity in Laodelphax striatellus

open access: yesInsect Science, EarlyView.
The small brown planthopper (SBPH), Laodelphax striatellus, can trigger large‐scale outbreaks when encountering suitable habitats during migration due to their strong reproductive ability. This study investigated the role of juvenile hormone (JH) in regulating SBPH reproduction.
Yan Guo   +3 more
wiley   +1 more source

Oogenesis Karang Sclerectinia Caulastrea furcata dan Lobophyllia corymbosa

open access: yesHayati Journal of Biosciences, 2007
Caulastrea furcata and Lobophyllia corymbosa are corals of order Sclerectinian. Caulastrea furcata is the only species of genus Caulastrea that could be found in Kepulauan Seribu and L. corymbosa is a rare species.
MUJIZAT KAWAROE   +2 more
doaj   +1 more source

Piwi maintains germline stem cells and oogenesis in Drosophila through negative regulation of Polycomb Group proteins

open access: yesNature Genetics, 2016
The Drosophila melanogaster Piwi protein regulates both niche and intrinsic mechanisms to maintain germline stem cells, but its underlying mechanism remains unclear.
Jamy C. Peng   +3 more
semanticscholar   +1 more source

RNAi‐based functional genomics tools for the beet leafhopper using microinjection and nanoparticle‐based topical spray

open access: yesInsect Science, EarlyView.
• First demonstration of functional RNAi in the beet leafhopper, Neoaliturus tenellus, using both dsRNA microinjection and star polycation nanoparticle‐mediated topical spray delivery.•Microinjection achieved over 90% knockdown of Gus and Pum3, revealing gene‐specific fitness effects on survival and fecundity in beet leafhopper.•Nanoparticle‐mediated ...
Jinlong Han   +8 more
wiley   +1 more source

A Genetic Mosaic Screen Reveals Ecdysone-Responsive Genes Regulating Drosophila Oogenesis

open access: yesG3: Genes, Genomes, Genetics, 2016
Multiple aspects of Drosophila oogenesis, including germline stem cell activity, germ cell differentiation, and follicle survival, are regulated by the steroid hormone ecdysone.
Elizabeth T. Ables   +4 more
semanticscholar   +1 more source

A horizontally acquired pantothenate gene drives vitellogenin's benefit to whitefly symbiosis persistence

open access: yesInsect Science, EarlyView.
This diagram illustrates that the horizontally transferred panBC influences the level and localization of vitellogenin (Vg) by facilitating pantothenate production and juvenile hormone (JH) biosynthesis. In turn, Vg shields symbionts by suppressing autophagic degradation in bacteriocytes.
Xiang Sun   +5 more
wiley   +1 more source

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