Articles tagged with Reproductive Biology
A team of researchers at University of California San Diego School of Medicine discovered that GIV/Girdin plays a critical role in sperm motility, survival, and fertilization success. The protein regulates capacitation and acrosome reaction processes, essential for successful fertilization.
A new ultrasonic method improves fetal weight prediction accuracy by analyzing three-dimensional limb volumes and abdominal circumferences. The algorithm outperforms traditional formulas in predicting macrosomia and birth weights.
Research from the University of Alberta found that female squirrels who predict abundant food years have more pups that survive to maturity. This is due to their ability to recognize mast seeding years, which occur once in a few years and provide an abundance of food.
Researchers have discovered the first occurrence of in situ preserved trilobite eggs from the Lorraine Group in upstate New York. The eggs are spherical to elliptical in shape and nearly 200 micrometers in size, providing valuable insights into the reproductive biology of ancient arthropods.
A team of scientists from Australia and Panama examined the reproductive mechanisms of Saccharum spontaneum to develop better management strategies. The study found that cutting stems into smaller pieces can help prevent flowering and seed dispersal, while timing management actions during specific seasons can also be effective.
A recent study on African bird fauna found that large-scale patterns of species richness and endemism are robust to changes in species concepts. The analysis identified complexity within long-recognized centers of endemism, with certain areas acting as 'species pumps'.
Biologists at UCSD discover how to genetically convert leaves into petals, a process made possible by the expression of five genes in leaves. The achievement has significant implications for plant development and could lead to the creation of novel plants with colorful, petal-like structures.
Researchers discover a ring species of greenish warblers with gradually changing behavioral and genetic characteristics encircling the Tibetan Plateau. The study reveals how small evolutionary changes can lead to reproductive isolation between species.
The American Society of Plant Physiologists has self-published a comprehensive 1400-page textbook on biochemistry & molecular biology of plants, featuring original drawings and photographs. The book is designed for upper-level undergraduate and graduate courses, and was introduced to sell well over 600 copies at the ASPP Annual Meeting.
Strepsipteran insects have eyes with larger lenses and more receptors, allowing them to sample 'chunks' of the visual field instead of points. This unique structure improves their visual capabilities and is similar to that of extinct arthropods like trilobites.
The study uses satellite technology to track the flight paths of albatrosses in Hawaii, providing insights into their reproduction and population dynamics. The project aims to answer basic science questions and engage students in pre-college education, ultimately contributing to the conservation of these endangered species.