Chromosome Set Manipulation, Sex Control and Gene Transfer in Common Carp

Gomelsky, Boris

doi:10.1201/b18547-8

Cited by 4 publications

(3 citation statements)

References 75 publications

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“…Fish inheriting the maternal genotype were female and fish inheriting the paternal genotype were male. In species which display male heterogamety, such as C. auratus (Yamamoto & Kajishima, ) and C. carpio (Gomelsky, ), induced androgenetic progenies are composed of both males and females because diploidy is restored by suppression of the first mitotic division, creating XX females and YY males (Bongers et al ., ). In this case of spontaneous androgenesis, the microsatellite data demonstrates the lack of classical segregation and so all diploid spermatozoa were presumably XY causing all androgens to be XY males.…”

Section: Discussionmentioning

confidence: 99%

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Spontaneous polyploidy, gynogenesis and androgenesis in second generation (F₂) koi Cyprinus carpio × goldfish Carassius auratus hybrids

Delomas

Gomelsky

Anil

et al. 2016

Journal of Fish Biology

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The objective of this study was to characterize the genetics of second generation (F ) koi Cyprinus carpio × goldfish Carassius auratus hybrids. Spermatozoa produced by a novel, fertile F male were found to be diploid by flow-cytometric analysis. Backcross (F female × C. carpio male and C. carpio female × F male) juveniles were triploid, confirming that female and male F hybrids both produced diploid gametes. The vast majority of surviving F juveniles was diploid and small proportions were aneuploid (2·1n-2·3n and 3·1n-3·9n), triploid (3n) and tetraploid (4n). Microsatellite genotyping showed that F diploids repeated either the complete maternal or the complete paternal genotype. Fish with the maternal genotype were female and fish with the paternal genotype were male. This demonstrates that F diploids were the result of spontaneous gynogenesis and spontaneous androgenesis. Analysis of microsatellite inheritance and the sex ratio in F crosses showed that spontaneous gynogenesis and androgenesis did not always occur in equal proportions. One cross was found to have an approximate equal number of androgenetic and gynogenetic offspring while in several other crosses spontaneous androgenesis was found to occur more frequently than spontaneous gynogenesis.

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Section: Discussionmentioning

confidence: 99%

“…The reproductive biology of Carassius spp. × C. carpio hybrids has been investigated by several different groups and reviewed by Gomelsky ().…”

Section: Introductionmentioning

confidence: 99%

Spontaneous polyploidy, gynogenesis and androgenesis in second generation (F₂) koi Cyprinus carpio × goldfish Carassius auratus hybrids

Delomas

Gomelsky

Anil

et al. 2016

Journal of Fish Biology

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“…Thus, triploid hybrid koi × goldfish females were able to produce some triploid eggs with an unreduced level of ploidy. Gomelsky (2015) reviewed literature data on the hybridization of common carp with fish of genus Carassius (crucian carps). The ability of hybrids between common carp and different crucian carps to produce diploid eggs was described repeatedly, and this phenomenon was used in several long-term studies on development and investigation of polyploid and gynogenetic hybrid forms.…”

Section: Discussionmentioning

confidence: 99%

Reproductive ability of triploid ornamental (koi) carp ( Cyprinus carpio L.) × goldfish ( Carassius auratus L.) hybrids and characteristics of their offspring

et al. 2020

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The purpose of this study was to investigate reproductive ability of backcross triploid koi (Cyprinus carpio L.) × goldfish (Carassius auratus L.) hybrids. These triploids have been obtained by crossing of F 1 hybrid females producing diploid eggs with males of parental species. Triploid hybrid females, when crossed with goldfish or koi males, produced mostly aneuploid fish with ploidy range from approximately 2.2n-3.2n with a mean value 2.5n; some fish in crosses of triploid females with koi males were tetraploid (4.0n). Since analysed fish had in their genomes one haploid set from parental males, the data indicate that triploid hybrid females mostly produced aneuploid eggs with ploidy range from approximately 1.2n-2.2n and a mean ploidy around 1.5n while some eggs were triploid. Triploid hybrid males were completely sterile and have not released any sperm after hormonal injection. Despite their low viability, some aneuploid fish obtained from triploid hybrid females were raised in indoor recirculating systems until the age of 2 years and their reproductive ability has been evaluated. One aneuploid female with ploidy 2.1n produced larvae with ploidy range from 2.9n to 3.4n with a mean ploidy of 3.1n when crossed with a koi male; about 60% of obtained larvae had ploidy from 3.0n to 3.2n. These data indicate that this female produced mostly eggs with unreduced ploidy level. K E Y W O R D S common carp, goldfish, hybrids, koi, ploidy, reproductive ability How to cite this article: Kramer AG, Gomelsky B, Warner JL, Novelo ND, Thomas BL. Reproductive ability of triploid ornamental (koi) carp (Cyprinus carpio L.) × goldfish (Carassius auratus L.) hybrids and characteristics of their offspring. Aquac

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Sex Control and Chromosome Manipulation in Cyprinidae

Gomelsky

Shelton

2018

Sex Control in Aquaculture

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Chromosome Set Manipulation, Sex Control and Gene Transfer in Common Carp

Cited by 4 publications

References 75 publications

Spontaneous polyploidy, gynogenesis and androgenesis in second generation (F₂) koi Cyprinus carpio × goldfish Carassius auratus hybrids

Spontaneous polyploidy, gynogenesis and androgenesis in second generation (F₂) koi Cyprinus carpio × goldfish Carassius auratus hybrids

Reproductive ability of triploid ornamental (koi) carp ( Cyprinus carpio L.) × goldfish ( Carassius auratus L.) hybrids and characteristics of their offspring

Sex Control and Chromosome Manipulation in Cyprinidae

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Chromosome Set Manipulation, Sex Control and Gene Transfer in Common Carp

Cited by 4 publications

References 75 publications

Spontaneous polyploidy, gynogenesis and androgenesis in second generation (F2) koi Cyprinus carpio × goldfish Carassius auratus hybrids

Spontaneous polyploidy, gynogenesis and androgenesis in second generation (F2) koi Cyprinus carpio × goldfish Carassius auratus hybrids

Reproductive ability of triploid ornamental (koi) carp ( Cyprinus carpio L.) × goldfish ( Carassius auratus L.) hybrids and characteristics of their offspring

Sex Control and Chromosome Manipulation in Cyprinidae

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Spontaneous polyploidy, gynogenesis and androgenesis in second generation (F₂) koi Cyprinus carpio × goldfish Carassius auratus hybrids

Spontaneous polyploidy, gynogenesis and androgenesis in second generation (F₂) koi Cyprinus carpio × goldfish Carassius auratus hybrids