A comparative study of rats and humans quantifies how somatic polyploidy, proliferation and hypertrophy each contribute to ...

The starting point of reproductionEssential to understanding sexual reproduction is the existence of "gametes." Gametes are ...

The plant haploid generation is specified late in higher plant development, and post-meiotic haploid plant cells divide mitotically to produce a haploid gametophyte, in which a subset of cells ...

Flowering plants, like placental mammals, have an extensive maternal contribution toward progeny development. Plants are distinguished from animals by a genetically active haploid phase of growth and ...

So you have finally found the partner of your dreams—but no matter how hard you try, no children have come along. Could science offer new answers to mate choice and infertility? For several years, ...

Cycads and ginkgo, possessing primitive motile sperm and derived pollen tubes, are important for understanding the evolution of land plant fertilization from zooidogamy to siphonogamy. We explored ...

Mutations drive evolution, but they can also be risky. New research led by plant biologists at the University of California, Davis, published Nov. 10 in Proceedings of the National Academy of Sciences ...

Haploid induction has emerged as a transformative approach in modern plant breeding, enabling the rapid production of homozygous lines. By generating plants that carry a single set of chromosomes, ...

As everyone knows, I adhere to the gametic definition of sex, in which individuals are classified as male or female (or, as in hermaphroditic plants, both sexes in one individual) based on whether ...

A study by Nagoya University reveals how Arabidopsis plants attract and repel pollen tubes using specific signals, aiding in precise fertilization and offering insights for agriculture. Credit: Issey ...

Researchers have used a unique microscopic technique to examine the dynamics of pollen tubes in the Arabidopsis plant. They were able to observe the mechanism of one-to-one pollen tube guidance, a ...

We’ve discussed the fact know that most biologists define “sex” in animals by the type of gamete they produce: males produce small mobile gametes (“sperm”) while females produce large, immobile ...