186
\
Table. All—female progeny from.gynogenesis and sex—inverted
Species
Gynogenesis
.
Breeding
Source
Common carp
'
”
"
…
90
1200
Nagy et
,
‘
‘
(1978, 1981).“j
Grass
carp
’
‘«“
350
_
‘
-
Stanley and
,
,
.
(1978)°
.
-
-
158
-
‘
1339
Shelton
_ “
(in
Silver carp«
«
,
,
—
.
62
'
'
Mirza and
.
'
'
(in
Bighead carp
'
_—17"
“
'
‘—
'
one
of
the
values
of gynogenesis is the
1ity in screening for optimal polyploidiZation, since in gyogenesis
diploids &re indicative of treatment efficacy while for
more
involved evaluation is necessary.
‘
'
'
-,
'
.
-'
'
-
'
‘
‘
'
'
Pôlyploidy has
applications in genetic studies and
gïams…(ï‘î‘lr@9m,
the control of reproductions" jLtri;—
Plpidÿ results in steri1ity While tetraploids should be fertile but
used to
logons to
male…genome is included ;;triploidy
iP@PÇ?—d bY»P°1;ê‘—'ëody retentiqn
from
the best treatment to induce triploiàÿ(Chourrout and Itskovich, 1983
press
b
;
Taniguchi et al., in press). In some
100 7trip101dlzation:h?a;S…beë =àïchîîëx‘iégdÿ. (WOTÈe fs "
1981 )
'
but
'
__
Viêble
ahdïÿfiust be" ,ç‘ù—11èd.’ "J oh,njs‘ôn
‘
et ,a‘1‘4
_
comparedmn-kary0typmg
The 1ève1 pff
.
été—1721
have ”éjma11èr gonädè'
m€%lzes
.
Ëheî may
tQ normal ;:‘$…iîZe
iut1…e or . no. ésperî
whileovarî€é of Â3.ri' flsh
p…ô61ÿ
tYPÀÇ&11;y have
D1rect”indùdemeïit of ;
bee‘
λi‘fñ"tHréè
s:
,
’
93äLäâ‘
(Whenfîï‘?Pied àt 5ç-m1nute safter1nsemlnation
ssî;s“îäwer “a:
7—17
.
italy;dä
The **“:‘ùaùëèmét 'ôvf'
‘
ln
::,fcqmmpm—c‘àz‘rp: '_Wa"’s—ï
>cô‘1H s‘ho (“ik at
Tamguç
eta1
s)1nducedtrlploidyin 69
‘o‘f" f*t‘he- —su‘;icv‘iVing
Îf
'
ge“?
usmg thesame treatment that wasept im‘m for …gÿñô'gënéâis ,:
î‘s‘fñ‘.
““."
°°monentthatSh0u 1dbe evaluated in Ÿ*15b
àïiôh,
'
hl‘"gh"mortall ty maybeassoc1atedmth
importance of
%r‘î‘S? carP («Cassani '3nd
of
-m“îhütèè,
lnltlat€d at 2 minutes, Only
but
Were triploid ; in
contrast, With a shock of 5C
minutes,…78 % were viable
bUË only 18 %
400 for 1 minute
at 4—5 minutes
they
\
Table. All—female progeny from.gynogenesis and sex—inverted
Species
Gynogenesis
.
Breeding
Source
Common carp
'
”
"
…
90
1200
Nagy et
,
‘
‘
(1978, 1981).“j
Grass
carp
’
‘«“
350
_
‘
-
Stanley and
,
,
.
(1978)°
.
-
-
158
-
‘
1339
Shelton
_ “
(in
Silver carp«
«
,
,
—
.
62
'
'
Mirza and
.
'
'
(in
Bighead carp
'
_—17"
“
'
‘—
'
one
of
the
values
of gynogenesis is the
1ity in screening for optimal polyploidiZation, since in gyogenesis
diploids &re indicative of treatment efficacy while for
more
involved evaluation is necessary.
‘
'
'
-,
'
.
-'
'
-
'
‘
‘
'
'
Pôlyploidy has
applications in genetic studies and
gïams…(ï‘î‘lr@9m,
the control of reproductions" jLtri;—
Plpidÿ results in steri1ity While tetraploids should be fertile but
used to
logons to
male…genome is included ;;triploidy
iP@PÇ?—d bY»P°1;ê‘—'ëody retentiqn
from
the best treatment to induce triploiàÿ(Chourrout and Itskovich, 1983
press
b
;
Taniguchi et al., in press). In some
100 7trip101dlzation:h?a;S…beë =àïchîîëx‘iégdÿ. (WOTÈe fs "
1981 )
'
but
'
__
Viêble
ahdïÿfiust be" ,ç‘ù—11èd.’ "J oh,njs‘ôn
‘
et ,a‘1‘4
_
comparedmn-kary0typmg
The 1ève1 pff
.
été—1721
have ”éjma11èr gonädè'
m€%lzes
.
Ëheî may
tQ normal ;:‘$…iîZe
iut1…e or . no. ésperî
whileovarî€é of Â3.ri' flsh
p…ô61ÿ
tYPÀÇ&11;y have
D1rect”indùdemeïit of ;
bee‘
λi‘fñ"tHréè
s:
,
’
93äLäâ‘
(Whenfîï‘?Pied àt 5ç-m1nute safter1nsemlnation
ssî;s“îäwer “a:
7—17
.
italy;dä
The **“:‘ùaùëèmét 'ôvf'
‘
ln
::,fcqmmpm—c‘àz‘rp: '_Wa"’s—ï
>cô‘1H s‘ho (“ik at
Tamguç
eta1
s)1nducedtrlploidyin 69
‘o‘f" f*t‘he- —su‘;icv‘iVing
Îf
'
ge“?
usmg thesame treatment that wasept im‘m for …gÿñô'gënéâis ,:
î‘s‘fñ‘.
““."
°°monentthatSh0u 1dbe evaluated in Ÿ*15b
àïiôh,
'
hl‘"gh"mortall ty maybeassoc1atedmth
importance of
%r‘î‘S? carP («Cassani '3nd
of
-m“îhütèè,
lnltlat€d at 2 minutes, Only
but
Were triploid ; in
contrast, With a shock of 5C
minutes,…78 % were viable
bUË only 18 %
400 for 1 minute
at 4—5 minutes
they