Biology Reference
In-Depth Information
male phase, the testicular portion is fully differentiated and contains mature
sperm, and the ovary is in a rudimentary state. The opposite scenario is
observed during the female phase. Levels of goby
FSHR
and
LHR
transcripts
have been determined as a measure of gene expression in the ovary and
testis during sex change and are expressed as ratio of
FSHR
and
LHR
to
GAPDH
gene. Expectedly both
FSHR
and
LHR
are highly expressed only
in the gonad corresponding to the sexual phase in a typical haremic goby.
A
Ovary
0.6
0.4
0.2
0
0.6
B
Testis
0.4
0.2
0
Female 4h
8h
12h 1day 3days Male 4h
8h
12h 1day 3days Female
F
F
M
Sexual Phase
Ovary
A
0.6
0.4
0.2
0
0.6
B
Testis
0.4
0.2
0
Female 4h
8h
12h 1day 3days Male 4h
8h
12h 1day 3days Female
F
F
M
Sexual Phase
Fig. 46.
Schematic illustration of the trends observed for (upper panel) FSHR and (lower panel)
LHR as function of sexual phase during sex change in a common haremic goby (compiled
from Kobayashi et al., 2009)
