This paper deals with the researchful information of morphological markers,cytological markers,biochemical markers and molecular markers;and the studying general situation of Cuscuta in the resent is summarized.

Alien disomic addition lines were distinguished with morphological markers and cytological means.

This review summarized the research progress on plant genetic markers including morphological marker, chromosomal marker, biochemical marker and DNA molecular marker and the current situation of application.

R cluster analysis showed independency and correctness of the selected morphological markers,accordingly,the veracity of Q cluster analysis was va.

Morphological markers are the traditional markers that have been extensively used for a long time for their facility and identifiability.

In this paper, a method of mouse tracking to pull graphic marks was introduced.

Expectant distribution patterns of a quantitative trait that is assumed to be controlled by a major gene linking two sex-linked inheritable morphomarker genotypes in testcross generation in silkworm were given.

The present paper argues that,in addition to the overt marker"shi"(使)widely used so far at home in Chinese translation of English causative sentences,the exploitation of the covert marker should be taken into consideration because of its concisely-formed,vividly-conveyed and richly-implied sentence structure,which has been more popularly enjoyed by Chinese people.