Mitochondrial 12s rDNA is highly co

Mitochondrial 12s rDNA is highly conserved and has been applied
to illustrate phylogeny of higher categorical levels such as
in phyla or subphyla. Whereas the 16s rDNA is usually applied
for phylogenetic studies at mid-categorical levels such as in
families or genera. It has been postulated that these sequences
are useful for inferring moderate to long divergence times (Janczewski
et al., 1995). Several investigators have used 12S
rDNA sequences for wildlife forensic biology (Prakash et al.,
2000; Gurdeep et al., 2004). Molecular phylogeny of elopomorph
fishes using 12S rRNA sequences clearly separated
monophyletic Elopomorpha from Clupeomorpha