APPLICATION OF RAPD TECHNIQUE FOR THE CONSERVATION OF AN ISOLATED POPULATION OF Capparis decidua
نویسنده
چکیده
Capparis decidua is a rangeland plant species growing in isolated regions in Saudi Arabia. The population in Rawdhat Khuraim was noticed to suffer from lack of new regeneration, in addition to excessive grazing which may reduce the size of the population and reduce the genetic variability. RAPD markers were used to study genetic diversity in this population and a control population. Two criterion were used to study the genetic diversity in population in Rawdhat Khuraim. The first was cluster analysis and genetic distance, and the second was the percentage of polymorphic alleles. Cluster analysis showed that coefficient of similarity within Rawdhat Khuraim population (84-93%) is a lot larger than between Rawdhat Khuraim and the control population (77%). In addition, the percentage of polymorphic alleles in population of Rawdhat Khuraim was 45.8, which is within the range of other endangered plant species. This indicates that the population in Rawdhat Khuraim is iso1ated, suffering from narrow genetic base and of a particular conservation concern.
منابع مشابه
Combining molecular-marker and chemical analysis of Capparis decidua (Capparaceae) in the Thar Desert of Western Rajasthan (india).
The Thar Desert, a very inhospitable place, accommodates only plant species that survive acute drought, unpredictable precipitation, and those can grow in the limited moisture of sandy soils. Capparis decidua is among one of the few plants able to grow well under these conditions. This species is highly exploited and has been naturally taken, as local people use it for various purposes like foo...
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