How early-stage embryos maintain their size
What controls the size of an embryo and, by extension, the size of tissue, organs and the whole organism?
Plants & Animals
Sep 2, 2019
1
58
News tagged with embryo development
Embryology: A sequence of reflexive contractions triggers the formation of the limbs
It normally takes about 21 days for chicken embryos to develop into chicks. By observing chicken hindlimb formation, a CNRS / Université de Paris research team has just discovered that the mechanism at the origin of embryonic ...
Plants & Animals
Aug 20, 2019
0
5
Three-dimensional model illuminates key aspects of early development
From a biological standpoint, the earliest stages of life are the most mysterious. A developing human embryo undergoes a flurry of rapid changes, and these changes are exceedingly difficult to study because they transpire ...
Cell & Microbiology
Jul 1, 2019
0
0
Size matters: New data reveals cell size sparks genome awakening in embryos
Transitions are a hallmark of life. When dormant plants flower in the spring or when a young adult strikes out on their own, there is a shift in control. Similarly, there is a transition during early development when an embryo ...
Cell & Microbiology
Jun 18, 2019
1
62
Tracking life's first step: Two molecules 'awaken' brand new genome
Within hours after fertilization, a unique genome forms from chromosomes contributed by the egg and sperm. However, this new genome is initially inactive and must be "awakened" to begin the transcription of its DNA and start ...
Molecular & Computational biology
Jun 17, 2019
0
44
Environmental oxygen triggers loss of webbed digits
Free fingers have many obvious advantages on land, such as in locomotion and grasping, while webbed fingers are typical of aquatic or gliding animals. But both amphibians and amniotes—which include mammals, reptiles, and ...
Ecology
Jun 13, 2019
0
102
Serendipity reveals sex bias in embryo development
New published research from the College of Veterinary Medicine shows that heightened levels of genomic instability can prove fatal to female embryos in mice.
Biotechnology
Feb 21, 2019
0
72
Researchers discover a new gear in life's clock: Vitamin D
New research from Portland State University finds vitamin D, or a lack thereof can trigger or suspend embryonic development in a species of fish. The study also provides evidence suggesting the vitamin is critical to the ...
Cell & Microbiology
Nov 19, 2018
0
125
Stem cells organize themselves into pseudo-embryos
The definitive architecture of the mammalian body is established shortly after implantation of the embryo in the uterus. The antero-posterior, dorso-ventral and medio-lateral axes of the body become organized under the control ...
Cell & Microbiology
Oct 3, 2018
0
34
Transcriptomics explains how 15 species of finch evolved from a single ancestor
Darwin's finches show enormous diversity in beak shape and size that varies with diet. The EU-funded Finch Evo-Devo project has used genomics plus – transcriptomics – to explain how 15 species of finch evolved from a ...
Plants & Animals
Aug 30, 2018
0
1
