MOLECULAR
MARKER= BIOSIGNATUR= BIOMARKER= GENETIC MARKER= DETECTOR MARKER
Marker is a piece of DNA
molecule associated with a certain traits of an organism. Molecular
marker is use to monitor DNA sequence variations among the species, create new favorable
traits to related species.
Molecular marker consists of molecules which show easily detectable differences
among different strains of a species or among different species. Thus “A DNA sequence on the genome which can be
located and identified” is known as Molecular Marker.
In recent years the use of
molecular marker approaches for plant breeding where use to
1.
Study variety of transgenic crops for gene they contains
2.
Study link to numerous traits of economic importance.
Molecular markers reveals neutral sites of
variation at the DNA sequence levels known as “Neutral Sites”
A map of the location of
identifiable landmark on chromosome is known as “Genetic Map” and a gene or DNA sequence having a known
location on a chromosome and associated with a particular trait or gene is
known as “Genetic Marker”.
