A novel type of 3 radiation ionization gas flowmeter is introduced based on the molecule-marked method measuring the air stream velocity.

AFLP molecular marker technique and its application in the medicinal plant research;

Molecular markers in early diagnosis and clinical staging of young patie nts with colorectal carcinoma;

Modification on three-locus self-cross method that constructs linkage maps of molecular markers;

Selection of microsatellite molecular markers associated with the character of cold tolerance of common carp;

Constructing precise linkage map of multiple molecular markers using gamete frequency method;

A modified method of quantitative trait loci mapping by using molecular flanking markers Maxi-likelihood method based on molecular markers;

The research development of earthworm molecular marker is summarized,especially protein marker.

[Methods] A plasmid-deficient strain, Ech7-mu1, was obtained by chemical mutation,and the relative specific molecular mark with toxin was screened from Random Amplified Polymorphic DNA (RAPD) by PCR.

The paper evaluates principles and characteristics of several common molecular mark techniques and briefly reviews the application of molecular mark technology in potato breeding.

The application of molecular biotechnology such as molecule marker and the small subunit ribosomal RNA(SSU rRNA)in the research of ruminal protozoal was reviewed.

The usage of microsatellite molecular marking in soybean;

Research progress of application of molecular marking technology in classification and identification of lactic acid bacteria;

The advances in biotechnological research on loquat, including tissue culture, germplasm isolated preservation, protoplast culture and molecular marking are reviewed.