Androgenesis, gynogenesis and the production of clones in fishes: A review

Komen, Hans; Thorgaard, Gary H.

doi:10.1016/j.aquaculture.2007.05.009

Cited by 247 publications

(224 citation statements)

References 155 publications

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“…Androgenesis (and gynogenesis) can be artificially induced in some fishes that have external fertilization [87]. Such artificial androgenesis is used in aquaculture to produce clonal lineages featuring commercially interesting traits.…”

Section: Artificial Induction Of Androgenesis (A) Induction Of Androgmentioning

confidence: 99%

Androgenesis: where males hijack eggs to clone themselves

Schwander

Oldroyd

2016

Phil. Trans. R. Soc. B

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Section: Artificial Induction Of Androgenesis (A) Induction Of Androgmentioning

confidence: 99%

Androgenesis: where males hijack eggs to clone themselves

Schwander

Oldroyd

2016

Phil. Trans. R. Soc. B

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“…The fatty acid composition of eggs plays an important role in improving reproduction success, including egg quality, and the survival of fry (Komen & Thorgaard, 2007;Bobe & Labbé, 2010). Egg quality of silver perch has been identified as a predominant indicator in assessing reproductive success and a key factor causing the high variation in the size of newly hatched larvae (Anonymous, 1999;Moiseeva, 2001;Rowland, 2004b;2009).…”

Section: Introductionmentioning

confidence: 99%

REPRODUCTIVE PERFORMANCE OF DOMESTICATED BROODSTOCK OF SILVER PERCH, Bidyanus bidyanus (MITCHELL 1838) AND THE RELATIONSHIP BETWEEN OIL GLOBULE FRAGMENTATION AND EGG QUALITY

Sulaeman

Fotedar

2017

Indonesian Aquaculture Journal

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The experiments investigated the reproductive performance of the domesticated broodstock of the silver perch and the relationship between various degrees of oil globule fragmentation and egg quality. Six years old of second generation broodstock (n=3) were evaluated based on the fecundity, fertilisation rate, hatching rate, the degree of oil fragmentation of egg, and the quality of embryos and larvae produced. The fragmentation were grouped into three categories: un-fragmented (cat-1), moderately fragmented (cat-2), and highly fragmented (cat-3). The results showed that the broodstock had a relatively high fecundity (132,400 ± 7,22), fertilization rate (94.27 ± 1.28%), and hatching rates (87.94 ± 1.23%). The survival rate of larvae at 12 days post hatching (dph) in cat-1 (71.3 ± 0.9%) was higher than cat-2 (66.7 ± 0.9%) whereas cat-2 was higher than cat-3 (61.3 ± 0.3%). The eggs was dominated by cat-1 (78.11 ± 2.44%) which was significantly higher than cat-2 (21.26 ± 2.45%) and cat-3 ones (0.40 ± 0.21%). The survival rate of embryo at 20 hours post spawning (hps) and hatching rate of cat-1 (95.33 ± 0.00% and 93.33 ± 0.00%) and cat-2 (90.00 ± 0.00% and 85.00 ± 0.00%) were significantly higher than cat-3 (72.33 ± 1.76% and 60.33 ± 0.00%). The total length (TL) of the larvae of cat-1 and cat-2 (8.44 ± 0.21 mm and 8.35 ± 0.23 mm respectively) were significantly higher than larvae of cat-3 (7.09 ± 0.14 mm). No significant difference was found in the larval deformities among any categories. In conclusion, the reproductive performance of six year-old broodstock silver perch showing acceptable performance and egg categorisation based on oil globule fragmentation can be used as a useful tool to indicate eggs quality of silver perch.

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“…Isogenic clonal lines have been successfully developed in rainbow trout by chromosome set manipulation methods using gynogenesis techniques [10,24,32]. Clones are individuals that are strictly genetically identical, and thus genetic variability within a clone is null.…”

Section: Introductionmentioning

confidence: 99%

Genetic variability in residual feed intake in rainbow trout clones and testing of indirect selection criteria (Open Access publication)

et al. 2008

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-Little is known about the genetic basis of residual feed intake (RFI) variation in fish, since this trait is highly sensitive to environmental influences, and feed intake of individuals is difficult to measure accurately. The purpose of this work was (i) to assess the genetic variability of RFI estimated by an X-ray technique and (ii) to develop predictive criteria for RFI. Two predictive criteria were tested: loss of body weight during feed deprivation and compensatory growth during re-feeding. Ten heterozygous rainbow trout clones were used. Individual intake and body weight were measured three times at threeweek intervals. Then, individual body weight was recorded after two cycles of a three-week feed deprivation followed by a three-week re-feeding. The ratio of the genetic variance to the phenotypic variance was found high to moderate for growth, feed intake, and RFI (VG/ VP = 0.63 ± 0.11, 0.29 ± 0.11, 0.29 ± 0.09, respectively). The index that integrates performances achieved during deprivation and re-feeding periods explained 59% of RFI variations. These results provide a basis for further studies on the origin of RFI differences and show that indirect criteria are good candidates for future selective breeding programs. rainbow trout / clone / residual feed intake / indirect criteria / selection

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Androgenesis, gynogenesis and the production of clones in fishes: A review

Cited by 247 publications

References 155 publications

Androgenesis: where males hijack eggs to clone themselves

Androgenesis: where males hijack eggs to clone themselves

REPRODUCTIVE PERFORMANCE OF DOMESTICATED BROODSTOCK OF SILVER PERCH, Bidyanus bidyanus (MITCHELL 1838) AND THE RELATIONSHIP BETWEEN OIL GLOBULE FRAGMENTATION AND EGG QUALITY

Genetic variability in residual feed intake in rainbow trout clones and testing of indirect selection criteria (Open Access publication)

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