Abstract
Moreover, paternity significantly explained 9.5% of the variability in embryonic
survival, providing further evidence that paternal effects need to be taken
into consideration in assisted reproduction protocols. Furthermore, maternity significantly explained 54.8% of the variation for fertilization success, 61.7% for embryonic survival, 88.1% for hatching success and 62.8% for larval deformities, validating that maternity is a major factor influencing these “critical” ELH traits. At last, the parental interaction explained 12.8% of the variation for fertilization success, 8.3% for embryonic survival, 4.5% for hatch success and 20.5% for larval deformities. Thus, we conclude that eggs of one female can develop more successfully when crossed with a compatible male, highlighting the importance of mate choice for successful propagation of high‐quality offspring. Together, this knowledge will improve early offspring performance, leading to future breeding programmes for this critically endangered and economically important species
| Original language | English |
|---|---|
| Journal | Reproduction in Domestic Animals |
| Volume | 53 |
| Issue number | 5 |
| Pages (from-to) | 1149-1158 |
| ISSN | 0936-6768 |
| DOIs | |
| Publication status | Published - 2018 |
Cite this
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Effect of parental origin on early life history traits of European eel. / Benini, Elisa; Politis, Sebastian Nikitas; Kottmann, Johanna Sarah; Butts, Ian A. E.; Sørensen, Sune Riis; Tomkiewicz, Jonna.
In: Reproduction in Domestic Animals, Vol. 53, No. 5, 2018, p. 1149-1158.Research output: Contribution to journal › Journal article › Research › peer-review
TY - JOUR
T1 - Effect of parental origin on early life history traits of European eel
AU - Benini, Elisa
AU - Politis, Sebastian Nikitas
AU - Kottmann, Johanna Sarah
AU - Butts, Ian A. E.
AU - Sørensen, Sune Riis
AU - Tomkiewicz, Jonna
PY - 2018
Y1 - 2018
N2 - Establishment of European eel (Anguilla anguilla) hatchery production will rely on selectively bred individuals that produce progeny with the best traits in successive generations. As such, this study used a quantitative genetic breeding design, between four females and nine males (four wild‐caught and five cultured), to investigate the effect of paternal origin (wild‐caught vs. cultured) and quantify the relative importance of parental effects, including genetic compatibility, on early life history (ELH) performance traits (i.e. fertilization success, embryonic survival at 32 hr postfertilization, hatch success and larval deformities at 2 days post‐hatch) of European eel. Wild‐caught males had higher (56%) spermatocrit values than cultured males (45%), while fertilization success, embryonic survival, hatch success and larval deformities were not significantly impacted by paternal origin. This demonstrates that short‐term domestication of male eels does not negatively affect offspring quality and enables the consideration of cultured male broodstock in future breeding programmes.Moreover, paternity significantly explained 9.5% of the variability in embryonicsurvival, providing further evidence that paternal effects need to be takeninto consideration in assisted reproduction protocols. Furthermore, maternity significantly explained 54.8% of the variation for fertilization success, 61.7% for embryonic survival, 88.1% for hatching success and 62.8% for larval deformities, validating that maternity is a major factor influencing these “critical” ELH traits. At last, the parental interaction explained 12.8% of the variation for fertilization success, 8.3% for embryonic survival, 4.5% for hatch success and 20.5% for larval deformities. Thus, we conclude that eggs of one female can develop more successfully when crossed with a compatible male, highlighting the importance of mate choice for successful propagation of high‐quality offspring. Together, this knowledge will improve early offspring performance, leading to future breeding programmes for this critically endangered and economically important species
AB - Establishment of European eel (Anguilla anguilla) hatchery production will rely on selectively bred individuals that produce progeny with the best traits in successive generations. As such, this study used a quantitative genetic breeding design, between four females and nine males (four wild‐caught and five cultured), to investigate the effect of paternal origin (wild‐caught vs. cultured) and quantify the relative importance of parental effects, including genetic compatibility, on early life history (ELH) performance traits (i.e. fertilization success, embryonic survival at 32 hr postfertilization, hatch success and larval deformities at 2 days post‐hatch) of European eel. Wild‐caught males had higher (56%) spermatocrit values than cultured males (45%), while fertilization success, embryonic survival, hatch success and larval deformities were not significantly impacted by paternal origin. This demonstrates that short‐term domestication of male eels does not negatively affect offspring quality and enables the consideration of cultured male broodstock in future breeding programmes.Moreover, paternity significantly explained 9.5% of the variability in embryonicsurvival, providing further evidence that paternal effects need to be takeninto consideration in assisted reproduction protocols. Furthermore, maternity significantly explained 54.8% of the variation for fertilization success, 61.7% for embryonic survival, 88.1% for hatching success and 62.8% for larval deformities, validating that maternity is a major factor influencing these “critical” ELH traits. At last, the parental interaction explained 12.8% of the variation for fertilization success, 8.3% for embryonic survival, 4.5% for hatch success and 20.5% for larval deformities. Thus, we conclude that eggs of one female can develop more successfully when crossed with a compatible male, highlighting the importance of mate choice for successful propagation of high‐quality offspring. Together, this knowledge will improve early offspring performance, leading to future breeding programmes for this critically endangered and economically important species
U2 - 10.1111/rda.13219
DO - 10.1111/rda.13219
M3 - Journal article
VL - 53
SP - 1149
EP - 1158
JO - Reproduction in Domestic Animals
JF - Reproduction in Domestic Animals
SN - 0936-6768
IS - 5
ER -