The Genetics of Aquarium Fish Species

Kirpichnikov, Valentin S.

doi:10.1007/978-3-642-68160-8_3

Cited by 9 publications

(25 citation statements)

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“…carp Cyprinus carpio, rainbow trout Salmo gairdneri, and salmon Salmo salar) estimated by using factorial mating design showed values ranging 0.01-0.50 (mean~0.2). 19 Our results of heritability for growth traits in Japanese flounder settled within the range of heritabilities estimated for many fishes. The heritability obtained in our study was higher than that in Uozumi and Tabata's 8 study using wild fish.…”

Section: Genetic Factors Of Growth Traitssupporting

confidence: 81%

“…Heritability could be estimated by the sire component without maternal effects on the traits on which the maternal effects were observed. 19 Generally, when the heritability for the traits is estimated higher than 0.2, selective effects can be expected in the next generation. 19 In this study, the heritability (sire component) in newly hatched larvae showed relatively high values (0.36 Ϯ 0.25 for TL and 0.17 Ϯ 0.14 for BD), and the mean heritabilities were nearly constant (0.14 Ϯ 0.06 for TL and 0.10 Ϯ 0.05 for BD) during early development.…”

Section: Genetic Factors Of Growth Traitsmentioning

confidence: 99%

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Maternal and genetic effects on individual variation during early development in Japanese flounder Paralichthys olivaceus

et al. 2007

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To investigate the changes in maternal effects during early development in Japanese flounder Paralichthys olivaceus, four-by-four factorial mating by artificial fertilization was performed to produce 16 families. Larvae and juveniles of each family were reared under common environmental conditions until completion of metamorphosis. The magnitude of maternal effects was estimated as the differences between sire and dam variance. Maternal effects were highest at hatching, and then disappeared at 30 days after hatching. During early development, larval size at hatching was largely affected by egg size, but this effect decreased as larvae grew. Estimated mean heritability during early development was nearly constant (0.14 Ϯ 0.06 for total length and 0.10 Ϯ 0.05 for body depth). Therefore, it is suggested that early development in Japanese flounder is affected by both maternal effect and genetic factors.KEY WORDS: early development, growth trait, heritability, Japanese flounder, maternal effect, stock enhancement.

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Section: Genetic Factors Of Growth Traitssupporting

confidence: 81%

Section: Genetic Factors Of Growth Traitsmentioning

confidence: 99%

Maternal and genetic effects on individual variation during early development in Japanese flounder Paralichthys olivaceus

et al. 2007

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“…Histochemical detection of enzymes of NADPH-dependent malate dehydrogenase (MDH 1.1.1.40), isocitrate dehydrogenase (IDH 1.1.1.42), aspartate aminotranspherase (AAT 2.6.1.1), lactate dehydrogenase (LDH 1.1.1.27), superoxide scavenger (SOD 1.15.1.1), non-specific esterase (EST 3.1.1.1, 3.1.1.2), proteins of muscles (My), blood and haemolymph were conducted in accordance with Korochkin et al (1977). Phoregrams were deciphered and identified in accordance with both general schemes (Korochkin 1977;Kirpichnikov 1987) and special papers: for whitefish, in accordance with Lokshina (1980), for frogs, in accordance with Mezhzherin (1997), Mezhzherin and Pisanets (1995), for rodents, in accordance with , Mezhzherin and Serbeniuk (1992), Shubin (1984), for sheep, in accordance with Glasgow (1985), Beisembayeva and Abilova (1978), for Rodentolepis microstoma, in accordance with Casanova et al (2001). Actual and theoretical genotype frequencies were evaluated in accordance with the HardyWeinberg Law, the portion of polymorphic loci (P) and the overall mean heterozygosity (H) for each investigated sample were estimated based on the results of electrophoretic analysis.…”

Section: Methodsmentioning

confidence: 99%

Indices of Genetic Variability of Parasites With a Different Life Cycle Structure

Zhigileva

2007

Acta Zoologica Lituanica

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Abstract. The estimates of variability of allozyme loci in the members of a range of parasitic systems of West Siberia are obtained by the method of gel electrophoresis. The average level of variability of parasitic organisms (helminths, insects, crustaceans) is similar to that of non-parasitic invertebrate animals. Polyhostal parasites and parasites with complex life cycles have a higher level of variability than oligohostal parasites and parasites with simple life cycles.

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“…Generally, growth traits are affected by genetic factors based on additive genetic variance, 16 and Traits changes after crossing in flounder FISHERIES SCIENCE growth performance in most species can be improved by size selection. 15 In fact, the progenies from RCB showed better growth performance with lower heritability than those from WC. Therefore, we assumed that this phenomenon was caused by unconscious size selection during the processes of seedling production and the culture of brood fish.…”

Section: Differences In Growth Higher Salinity Tolerance and Behaviomentioning

confidence: 97%

Changes in growth, higher salinity tolerance and behavioral traits in Japanese flounder Paralichthys�olivaceus after repeated cross-breeding

et al. 2007

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To improve stock enhancement strategies, the influences of repeated crossbreeding on several traits were studied in hatchery-reared juveniles of the Japanese flounder. Ten families (seven caught in the wild and three from cross-bred brood fish) were produced by artificial fertilization. Ninety-four days after hatching, we investigated settlement, burying in the sand and escape behavioral traits, and then measured tolerance of high salinity and six morphological traits. Juveniles from the repeatedly cross-bred brood fish showed significantly higher growth and tolerance than those from the wild-caught brood fish. Among the behavioral traits, a significantly lower settling speed and incidence of burying in the sand were observed in the juveniles from the repeatedly cross-bred families. Heritability (h 2 ) of growth traits was more than 0.2 in both origins, while that of other traits was close to zero. These results suggest that repeated cross-breeding of Japanese flounder under hatchery conditions improves growth performance and leads to the loss of certain behavioral traits that are considered essential to survival in wild environments.

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The Genetics of Aquarium Fish Species

Cited by 9 publications

References 0 publications

Maternal and genetic effects on individual variation during early development in Japanese flounder Paralichthys olivaceus

Maternal and genetic effects on individual variation during early development in Japanese flounder Paralichthys olivaceus

Indices of Genetic Variability of Parasites With a Different Life Cycle Structure

Changes in growth, higher salinity tolerance and behavioral traits in Japanese flounder Paralichthys�olivaceus after repeated cross-breeding

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