What Is Genetic Diversity?

Genetic diversity refers to the sum of genetic information carried by all living things on the planet. But generally referred to genetic diversity refers to genetic diversity within a species, that is, the sum of genetic variation between individuals within a species or different individuals within a group. Intraspecific diversity is the most important source of diversity at all levels above the species. Genetic variation, life history characteristics, population dynamics and their genetic structure determine or influence the way one species interacts with other species and the environment. Moreover, intra-species diversity is a determining factor for a species' successful response to human disturbance. The degree of genetic variation within a species also determines its evolutionary trend.

Genetic diversity

Genetic diversity can manifest at multiple levels, such as molecules, cells,

Genetic diversity is an important component of biological diversity. On the one hand, any species has its own unique gene bank and genetic organization form, and the diversity of the species also shows

Gene mutation

The research on genetic diversity has important theoretical and practical significance.

First, the genetic diversity of a species or population is the product of long-term evolution, and is the prerequisite for its survival, adaptation, and evolution. The higher the genetic diversity of a population or species, or

The methods for detecting genetic diversity have been improved and improved with the development of biology, especially genetics and molecular biology. From

PCR specific amplification of ITS sequences

This is currently the most mainstream method for identifying species and doing molecular taxonomic research. The principle is:

Genetic diversity is the essence of species evolution and the material basis for the survival and development of human society. "A gene is related to the rise and fall of a country, and a species affects the economic lifeline of a country." It has been proved by countless examples. For example, the first "green revolution" and the use of rice hybridity are the result of the discovery and utilization of dwarf genes and sterility genes. Obviously, the study of genetic diversity has important significance both in the protection of biological diversity, the sustainable use of biological resources, and the food supply of the future world.

Provides basic food for human beings and is the fundamental and irreplaceable source (real and potential) of human food.

The main source of human medicine and clothing.

Provide a variety of industrial raw materials, such as wood, fiber, rubber, papermaking raw materials, natural starch, oil, etc.

Biodiversity is the basis for maintaining natural ecological balance.

Biodiversity is the source of genes for genetic breeding.