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cje ›› 1999, Vol. ›› Issue (3): 59-65.

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Research Progress of Genetic Diversity

Xia Ming   

  1. Northeast Agriculture University, Harbin, China 150030
  • Received:1998-07-21 Revised:1998-12-17 Online:1999-06-10

Abstract: Abstract As an important component of biodiversity, genetic diversity is the basis of species diversity and ecosystem diversity. With the improvement of research methods and experimental techniques, the research of genetic diversity has developed from morophological, cytological, physiological and biochemical level to molecular level which mainly study on nucleic acid. Using morophological methods, researchers can find out the level of genetic variation of a special species in a short time. The study on chromosome may reveal the changes of genome and chromosomal structure. Because of the emerge of allozyme analysis, people can study genetic diversity on biochemical level and have much deeper understanding about genetic variation and evolution. Owing to its efficiency, rapidity and convenience, allozyme analysis is still popularly used nowadays. From the late 1980's, some new techniques of DNA polymorphism analysis provided researchers with more efficient tools to study genetic diversity on higher level. This paper reviewed the research progress of genetic diversity on several levels, and pointed out that research should be conducted on different levels and from various angles. genetic diversity, genetic variation, genetic structure, allozyme analysis, RAPD.

Key words: ownership pattern, habitat conversation, forest landscape fragmentation, state-owned forestland, forest ownership reform.