Sex and diet affect protein machineries

Scientists from EMBL Heidelberg have discovered that the collection of proteins in an animal cell—called the proteome—is substantially affected by both the animal's sex and its diet. Understanding these individual proteomes ...

The evolution of bird-of-paradise sex chromosomes revealed

Birds-of-paradise are a group of songbird species, and are known for their magnificent male plumage and bewildering sexual display. Now, an international collaborative study involving the University of Vienna, Zhejiang University ...

How birds become male or female, and occasionally both

The highly unusual "semi-identical" Australian twins reported last week are the result of a rare event. It's thought the brother and sister (who have identical genes from their mother but not their father) developed from ...

What makes two species different?

Most evolutionary biologists distinguish one species from another based on reproductivity: members of different species either won't or can't mate with one another, or, if they do, the resulting offspring are often sterile, ...

Favoring female flowers in hemp horticulture

A UConn plant science professor working with hemp plants has developed a way to maximize the production of female flowers, which produce significantly higher quantities of cannabinoids than male flowers.

30 years of experimental evolution results in a new sex chromosome

On 3 December 2018, the laboratory of Professor Axel Meyer, University of Konstanz published new findings of an experimental evolutionary project that ran for 30 years on the genomic mechanisms of sex determination in swordtail ...

Where sexes come by the thousands

By the end of every spring semester, students in my introductory biology course at Vanderbilt University have become quite familiar with natural variation in human sex chromosomes. They know, for example, that most females ...

Jumping genes drive sex chromosome changes in strawberries

The transfer of gene cassettes across generations of strawberry plants has been shown to drive changes in sex chromosomes, according to a team led by a researcher from the University of Pittsburgh Department of Biological ...

page 1 from 8