From bacterial immunity to plant sex

Could it be that one of only three known markers directly targeting the DNA does not exist outside the realm of microbes? Now, researchers have demonstrated that this marker -- N4-methylcytosine (4mC) -- is essential for sperm development and maturation in the liverwort Marchantia polymorpha, a key organism in plant evolution.

From bacterial immunity to plant sex
Could it be that one of only three known markers directly targeting the DNA does not exist outside the realm of microbes? Now, researchers have demonstrated that this marker -- N4-methylcytosine (4mC) -- is essential for sperm development and maturation in the liverwort Marchantia polymorpha, a key organism in plant evolution.