DNA fingerprinting has recently been strongly advocated: the
genetic composition of each species is unique and is not affected
by age, physiological conditions or environmental factors. DNA
can be extracted from fresh or dried organic tissue. Molecular
genetic tools, like barcoding, random amplified polymorphic
DNA (RAPD) and sequence characterized amplified region
(SCAR) markers are reliable in quality control of products.
RAPD can be used to identify plant raw material but it is difficult
to reproduce the fingerprints and they are better converted to
SCAR markers. The limitations mean that DNA analysis has so
far been confined to academia. Furthermore, with regard to PFS
production, it is important to realise that the DNA fingerprint is
the same in every part of the plant, but the phytochemical
content is not, and this content also depends on the growing
conditions and the environment of the plant in general.
DNA fingerprinting has recently been strongly advocated: thegenetic composition of each species is unique and is not affectedby age, physiological conditions or environmental factors. DNAcan be extracted from fresh or dried organic tissue. Moleculargenetic tools, like barcoding, random amplified polymorphicDNA (RAPD) and sequence characterized amplified region(SCAR) markers are reliable in quality control of products.RAPD can be used to identify plant raw material but it is difficultto reproduce the fingerprints and they are better converted toSCAR markers. The limitations mean that DNA analysis has sofar been confined to academia. Furthermore, with regard to PFSproduction, it is important to realise that the DNA fingerprint isthe same in every part of the plant, but the phytochemicalcontent is not, and this content also depends on the growingconditions and the environment of the plant in general.
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