GENETIC VARIABILITY AND SIMILARITY IN TWO FAMILIES OF CRABS SAFAA I. EL-DEEB

GENETIC VARIABILITY AND SIMILARITY
IN TWO FAMILIES OF CRABS
SAFAA I. EL-DEEB
National Institite of Fishery and Oceanography, Alexandria
Academy of science, Egypt
ABSTRACT
SeMil Protefns end ett.r… Isoz~s of cra: Erlpilia
.inof…. (red); Erlpilia .inof…. (……) f_lly
xanthf~.'” Portwua peleq”:_; portwus ercustus.
Carel… “‘Uerr… end OIer’ybdis hellerl f.fl y
Portunldee were studied .llCtropho~.tically. SOS
polyacryl.l~ gel …s used to ..tl_te. the ~lecular
weight of the vlrfable protefn between the two
f.fll… The genetic distance wee calcul.ted for the
two f.1 II…
The re.ults Indlclted thlt Erlpilia .inoforw. (red) and
Eripllia .Inoforw. (Green) appeared as two species. Portlna
pelaglaa, Cerci……It…….. end CM’ybdls hellerf were
closely rellted to each other end constitute one group;
while Por~ arcuetus constltut.. another group, loo.ely
related to the ff rst. Est.rl.. 1.00~S patterns allowed
genetic virfability In the dlff.rent epeeles of Cra.
The ~lecular weight of ttle vlrlable prot.lns between the
two f.lllel ranged between 140.000 0 … 18.000 D.
The genetic distance Indlclted also that portwus
,.l..laa; Cerci… -tlterr_ end CM’ybdls helleri were
closel y related to elch other end Portunul ercustus wal
loosely rellted to this group. Eripllil 8plnof_ (red) end
Erlpllfl 8pinqf_ (Creen) were two related specl…