According to the state of molecular genetic linkage map, the recent application advances of the map in Brassica crops research were summarized from the following aspects: gene mapping of important agronomic characters and marker assistant selection, comparative mapping, genome structures and origin and evolution.

Flowering time and bolting time of Brassica crops were two important quantitative traits related to the commerciality.

Advances in studies of molecular markers of Brassica crops were summarized from the following aspects:the state of molecular mapping,the study of comparative mapping and the molecular marker of important traits.

Advance in the molecular characteristics and strain differentiation of turnip mosaic virus (TuMV), the inheritance and molecular marker of TuMV-resistance in Brassica crops, creation of new germplasm by transformation, the screening of TuMV-resistance and the breeding of new cultivars with TuMV-resistance were reviewed in this paper.

This paper studies on distant hybridization in Brassica plants and expounds emphatically the mechanism on not affiliating and gives some methods to overcome that.

Advances on chemical defense of Brassica crops against Lepidoptera insects;

Brassica crops occupy the largest cultivated areas and produce the highest yields among the vegetables and oil crops in our countryside.

The studies showed that there were higher incompatibilities between Brassica species and Orychophragmus violaceus and it was very difficult to obtain intergeneric hybrids.

Progress of Study on Isolated Microspore Culture in Brassica;

Progress of Molecular Mechanism of Self-incompatibility in Brassica;

Cloning, Sequencing and Evolution of CAL Homologs in Brassica Species;