Abstract
This study aimed to study the phenotype and genotype differentiation and to compare the amount of differences in phenotype based on morphometric character indices and meristic counts with the amount of differences in genotype based on random amplified polymorphic DNA (RAPD) fingerprinting between two Mugilidae , Flathead grey mullet ( Mugil cephalus ) and Thinlip grey mullet ( Liza ramada ). The results showed that there were significant differences in most of the morphometric character indices but no significant differences were detected in most of the meristic counts between M. cephalus and L. ramada . In addition, the euclidean distance between M. cephalus and L. ramada using hierarchical cluster analysis of quantitative phenotype based on morphometric character indices and meristic counts and condition factor was (0.421). Genotype analysis based on RAPD fingerprint showed highly genetic dissimilarity (0.437) between M. cephalus and L. ramada. These results confirmed that the amount of differences in genotype reflected the same amount of differences in phenotype between M. cephalus and L. ramada. Therefore, either phenotype analysis can be use based on a large number of morphometric character indices and meristic counts or genotype analysis based on RAPD fingerprinting to discriminate M. cephalus and L. ramada with the same results. Key words : Phenotype, genotype, Mugil cephalus, Liza ramada.
Highlights
Mullets are euryhaline fish widely distributed in tropical and subtrobical and estuaries
This study aimed to study the phenotype and genotype differentiation and to compare the amount of differences in phenotype based on morphometric character indices and meristic counts with the amount of differences in genotype based on random amplified polymorphic DNA (RAPD) fingerprinting between two Mugilidae, Flathead grey mullet (Mugil cephalus) and Thinlip grey mullet (Liza ramada)
Either phenotype analysis can be use based on a large number of morphometric character indices and meristic counts or genotype analysis based on RAPD fingerprinting to discriminate M. cephalus and L. ramada with the same results
Summary
Mullets are euryhaline fish widely distributed in tropical and subtrobical and estuaries. According to the different regions, the most commonly-cultured of mullets are Mugil cephalus and Liza ramada (Oren, 1981; Lee and Tamaru, 1988; El-Sayed, 1991). It is considered an important source of animal protein for the peoples of the Pacific Basin, Southeast Asia, India, the Mediterranean, Eastern Europe and, many parts of central and South America (Lee and Tamaru, 1988).
Sign-in/Register to view highlights & summary Sign-in/Register to access full text options 
Free) 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a call
