For the first time, the genome of the dead-leafed insect horsetail pine caterpillar was analyzed

BEIJING, May 11 (Reporter Ma Aeping correspondent
Chen Li) 11, from China's Lin
was informed that the hospital experts successfully built a high-quality genome containing 30 chromosomes of horsetail pine caterpillars, the results of which were published online in the journal Molecular Ecological Resources. This is the first genome analysis of dead-leafed insects and will provide an important basis for the functional and evolutionary research of horsetail pine caterpillars and other dead-leafed larvae.
horsetail pine caterpillar is china's most widespread, the most harmful area of conifer forest leaf pests, its larvae take pine needles. During the outbreak of pests, a series of pine forests in a few days was eaten away from the fine light, far from the yellow, charred black, like a fire, known as "no smoke forest fire." However, it is rarely reported to explore the molecular structure of pine caterpillars from their internal molecular structure.
the study, which analyzed the genome evolution and gene expansion and contraction of horsetail pine caterpillars, found that 2,104 gene families of horsetail pine caterpillars expanded and 1,900 gene families contracted. The genes associated with the degradation and detoxification system of exoded compounds in the amplified gene family were significantly rich. Further analysis found that the horsetail pine caterpillar and the european important conifer forest leaf pest pine osteoporosis also have the expansion of the cytochrome P450 gene, indicating that the horsetail pine caterpillar P450 gene, especially the CYP3 family gene may be related to the resistance of pine needle resistance compounds.Zhang Sufang, the first author of the
paper and an associate researcher at China Forest
, said that compounds such as pine resin and pine incense secreted by the horsetail pine body itself can physically and chemically block most pests from harming them, but pine caterpillars can depend on their survival and cause irreversible economic losses and ecological damage after large-scale outbreaks. From the genetic level of research and analysis of pine caterpillar disaster mechanism, grasp its evolution and occurrence of the law, control the population of pests, or will reach the "worm is not disaster" prevention and control purposes.