Results 81 to 90 of about 1,024 (212)

Robinow syndrome DVL1 variants disrupt morphogenesis and appendage formation in a Drosophila disease model

open access: yesDevelopmental Dynamics, EarlyView.
Abstract Background Robinow syndrome is a rare developmental syndrome caused by variants in genes in Wnt signaling pathways. We previously showed that expression of patient variants in Dishevelled 1 (DVL1) in Drosophila and chicken models disrupts the balance of canonical and non‐canonical Wnt signaling.
Gamze Akarsu   +4 more
wiley   +1 more source

Biophysical processes of morphogenesis in lizard lungs

open access: yesDevelopmental Dynamics, EarlyView.
Abstract Background The lungs of squamate reptiles (lizards and snakes) are highly diverse, exhibiting single chambers, multiple chambers, transitional forms with two to three chambers, along with a suite of other anatomical features, including finger‐like epithelial projections into the body cavity known as diverticulae.
Kaleb Hill   +9 more
wiley   +1 more source

Oogenesis and germinal bed morphology of the brown anole (A. sagrei)

open access: yesDevelopmental Dynamics, EarlyView.
Abstract Background The brown anole is a model species of the genus Anolis, a squamate (encompassing lizards and snakes) group widely studied in evolutionary, behavioral, and developmental biology. Full genome annotation, the establishment of gene editing techniques, and comprehensive description of reproductive tract morphology and embryogenesis in ...
Bonnie K. Kircher   +12 more
wiley   +1 more source

Callose and osmiophilic material deposition into walls of developing megagametophyte in Stellaria

open access: yes, 2014
Extensive rough ER cisternae are developing and disappearing during each of intermitotic periods in two and four nucleate embryo sac and synergids. The synergid cisternae are transformed into vesicles.
Bohdan Rodkiewicz   +2 more
core   +1 more source

Mosaic activation of the zebrafish hsp70l heat shock promoter: Implications for interpreting transgenes

open access: yesDevelopmental Dynamics, EarlyView.
Abstract Background The promoters and enhancers of heat shock genes, such as the 1.5‐kb promoter of the zebrafish hsp70l gene, are valuable tools for temporal activation of transgenes. It has been widely purported that heat shock treatments result in ubiquitous expression of hsp70l‐driven transgenes.
Jong‐Su Park, Xiangyun Wei
wiley   +1 more source

Occurrence of Callose during Embryo Sac Development in Stachyurus praecox Sieb. et Zucc. [PDF]

open access: yes
application/pdfThe deposition pattern of callose during the embryo sac development was investigated in Stachyurus praecox. Although two chalazal megaspores of a tetrad began to develop in some of the tetrads examined, it was only one megaspore nearest ...
Takeda, Keiko   +3 more
core   +1 more source

CROISSANCE DU SAC EMBRYONNAIRE HUMAIN ETUDIEE PAR LES ULTRASONS

open access: yes, 1974
The growth of the embryo sac and of the uterus was determined between the 5th and 12th wk of amenorrhea in 91 normal pregnancies. Twenty four measurements of the ovaries and the uterus were made for each case by means of twodimensional echograms.
Levi, Salvator, Erbsman, F.
core  

Embryology of Polygonatum (Asparagaceae) and its systematic significance

open access: yes, 2018
In this study, we systematically studied the microsporogenesis, megasporogenesis, as well as development of male and female gametophyte of Polygonatum macropodum and P. sibiricum using the conventional paraffin sectioning technique.
JIA-XI LIU, YUAN-YUAN SONG, YUN-YUN ZHAO
core   +1 more source

Role of SoxE transcription factors in development and disease

open access: yesDevelopmental Dynamics, EarlyView.
Abstract Sox8, Sox9, and Sox10 arose by multiple rounds of genome duplications from a single SoxE gene in ancestral vertebrates. In this review, we will briefly discuss the molecular structure and function of SoxE transcription factors and their evolutionary origin. We will then discuss their expression, function, and developmental disorders.
Merin Lawrence, Gerhard Schlosser
wiley   +1 more source

Embryonic development of the Mediterranean starfish Hacelia attenuata

open access: yesDevelopmental Dynamics, EarlyView.
Abstract Background Starfish play essential ecological roles as predators and ecosystem regulators; however, detailed developmental descriptions exist for only a handful of species, none of which are from the Mediterranean Sea. Results In this study, we provide the first full account of the development of the Mediterranean starfish Hacelia attenuata ...
Silvia Caballero‐Mancebo   +3 more
wiley   +1 more source

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