v
SUMMARY
“PREMELINARY RESEARCH ON METHOD DEVELOPMENT AND
GENETIC DIVERSITY EVALUATION OF Lumnitzera racemosa Willd IN
CAN GIO MANGROVE BIOSPHERE RESERVE AREA USING RAPD”.
This thesis was carried out in Can Gio Mangrove Biosphere Reserve Area and
Chemical and Biological Analysis and Experiment Center Nong Lam University
from April to August 2007.
Lumnitzera racemosa Willd is one of 34 true mangrove species in Viet Nam.
In Can Gio Mangrove Biosphere Reserve Area, it is a common population. Almost
the population is naturally regenerated after the war. However, after 30 years, the
population has degraduated. In order to protect and preserve the Can Gio mangrove
forest, scheme for afforestation and conservation should be established. Studies on
population genetics are necessary to provide basic information for establishing
strategies for conserving genetic diversity of Can Gio mangrove forest.
The obtained results are:
Collected 45 leaf samples from Lumnitzera racemosa.
Optimized DNA isolation protocol.
Developed RAPD protocol using for Lumnitzera racemosa. Primer OPAC10
showed the genetic diversity clearlier than other tested primers. We had 4
polymorphic fragments and 2 isomorphic fragments. It is possible to be DNA
marker for Lumnitzera racemosa species.
The phylogenic tree of Lumnitzera racemosa divided 11 samples into 2
group. The first group had 2 samples which have been collected along road,
the others have been collected along river.
The Lumnitzera racemosa population in Can Gio Mangrove Biosphere
Reserve had low level of genetic diversity. In order to increase the level of
genetic diversity, we should plant Lumnitzera racemosa with different origin
into the existing population.