“…Among the various types of molecular markers available, Random Amplified Polymorphic DNA (RAPD) is a methodology that does not require previous genome knowledge, it is cheap and accessible especially when molecular information is scarce (Williams et al, 1990;Weeden, 1992). It has been used to indicate genetic relationships between orchid species (Demeke et al, 1992;Choi et al, 2006), to unravel cultivar identification (Weeden, 1992;Menezes et al 2002), to study the systematic of Vanda (Lim et al, 1999) and Phalaenopsis (Goh et al, 2006) and to analyse the genetic diversity as in Cymbidium (Choi et al, 2006), Changneienia amoena (Li and Ge, 2006) and Cypripedium calceolus (Brzosko et al, 2002). RAPD was an important tool to assess the variability as in Bouganvillea (Srivastava et al, 2009), Catharanthus roseus (Shaw et al, 2009), Coffea (C. arabica autogamous - Diniz et al, 2005;C.canephora allogamous -Ferrão et al, 2009), cassava (Manihot esculenta -Ferreira et al, 2008 and in Aspidosperma (rainforest allogamous tree - Torezan et al, 2005).…”