By the PCR-RFLP method,the polymorphisms of exon 14 of Mx1 gene were detected in wild boar and 16 native and exotic pig breeds,with the analysis of restrictive enzyme Hin6Ⅰdigestion,there were 6 genotypes and 3 alleles.

Great improvement of meat productivity for three foreign breeds have been made through two years selection using animal model BLUP and related software MTEBV.

Effects of an alien species (Spartina alterniflora) on soil microorganism diversity in salt marshes,Jiangsu coastal inter-tidal ecosystem;

This paper discusses and identifies the concepts of alien species and alien invasive species;reports 53 species of alien species of plants in Henan Province,including Chenopodium pumilio R.

In this article, some concepts about biological invasion were presented and the process of alien species change to invasive species was summarized and primary types of biological invasion were concluded.

Effect of exotic species Mytilopsis sallei on macrozoobenthos in the Maluan Bay,Xiamen in China;

Metapopulation model of multispecies competitive coexistence given exotic species invasion

This paper points out that the aggression of exotic species quickens the forfeiture of the living thing’s varieties, and destroys the ecosystem, and threatens human's health, and causes great loss of the economy, so it brings the side effect to the sustainable development and the human society.

Research on allelopathic effects of Oxalis corymbosa——an invasive species;

Distribution of an exotic plant Spartina alterniflora in Shanghai;