A relatively recent work with cool finding. Many questions remain open. "A complete DNA repair system assembled by two endosymbionts restores heat tolerance of the insect host" www.pnas.org/doi/10.1073/...

A complete DNA repair system assembled by two endosymbionts restores heat tolerance of the insect host | PNASDNA repair systems are essential to maintain genome integrity and stability. Some obligate endosymbionts that experience long-term symbiosis with t...www.pnas.org