Genotype-by-culture-system interaction in catla and silver carp: Monoculture and biculture
Catla (Catla catla) and silver carp (Hypophthalmichthys molitrix) are globally significant aquaculture species, primarily grown in polyculture. The objectives of the current study were to i) quantify genetic differences among founder populations (i.e. genetic groups) of family-based genetic improvem...
| Main Authors: | , , , , , |
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| Format: | Journal Article |
| Language: | Inglés |
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Elsevier
2023
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| Subjects: | |
| Online Access: | https://hdl.handle.net/10568/126640 |
| _version_ | 1855533439768330240 |
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| author | Hamilton, Matthew Mekkawy, Wagdy Alam, Md. Badrul Barman, Benoy Karim, Manjurul Benzie, John |
| author_browse | Alam, Md. Badrul Barman, Benoy Benzie, John Hamilton, Matthew Karim, Manjurul Mekkawy, Wagdy |
| author_facet | Hamilton, Matthew Mekkawy, Wagdy Alam, Md. Badrul Barman, Benoy Karim, Manjurul Benzie, John |
| author_sort | Hamilton, Matthew |
| collection | Repository of Agricultural Research Outputs (CGSpace) |
| description | Catla (Catla catla) and silver carp (Hypophthalmichthys molitrix) are globally significant aquaculture species, primarily grown in polyculture. The objectives of the current study were to i) quantify genetic differences among founder populations (i.e. genetic groups) of family-based genetic improvement programs ii) estimate genetic parameters for harvest weight under different culture systems (i.e. monoculture and biculture) and iii) determine the extent of genotype-by-culture-system interaction – a component of genotype-by-environment-by-management interaction. Founder parents were spawned to generate 188 catla and 184 silver carp base-population full-sibling families. Families were grown out in eight earthen ponds – two monoculture catla, two monoculture silver carp and four biculture – and harvest body weight and survival analysed. Neither interaction (i.e. heterosis) nor main effects among genetic groups were statistically significant in any pond, trait or species. Additive genetic variances were significantly different from zero in all but one pond in each species. Narrow-sense heritability estimates for harvest weight ranged from 0.06 to 0.44 for catla and from 0.18 to 0.51 for silver carp. In contrast to catla, silver carp inter-pond genetic correlations were significantly different from one in multiple cases, indicating the presence of genotype-by-pond interactions. However, these interactions were not entirely explained by genotype-by-culture-system interaction, given the genetic correlation between the monoculture ponds was 0.56 (P = 0.038; from one). Additive variances were not statistically significant for survival in either species, with the exception of silver carp in one polyculture pond. Notably catla harvest weight in monoculture ponds was substantially greater than in biculture ponds, indicating the presence of inter-species competition in biculture ponds. |
| format | Journal Article |
| id | CGSpace126640 |
| institution | CGIAR Consortium |
| language | Inglés |
| publishDate | 2023 |
| publishDateRange | 2023 |
| publishDateSort | 2023 |
| publisher | Elsevier |
| publisherStr | Elsevier |
| record_format | dspace |
| spelling | CGSpace1266402025-12-08T10:11:39Z Genotype-by-culture-system interaction in catla and silver carp: Monoculture and biculture Hamilton, Matthew Mekkawy, Wagdy Alam, Md. Badrul Barman, Benoy Karim, Manjurul Benzie, John silver carp catla narrow-sense heritability fish genotype-by-environment-by-management interaction additive genetic correlation Catla (Catla catla) and silver carp (Hypophthalmichthys molitrix) are globally significant aquaculture species, primarily grown in polyculture. The objectives of the current study were to i) quantify genetic differences among founder populations (i.e. genetic groups) of family-based genetic improvement programs ii) estimate genetic parameters for harvest weight under different culture systems (i.e. monoculture and biculture) and iii) determine the extent of genotype-by-culture-system interaction – a component of genotype-by-environment-by-management interaction. Founder parents were spawned to generate 188 catla and 184 silver carp base-population full-sibling families. Families were grown out in eight earthen ponds – two monoculture catla, two monoculture silver carp and four biculture – and harvest body weight and survival analysed. Neither interaction (i.e. heterosis) nor main effects among genetic groups were statistically significant in any pond, trait or species. Additive genetic variances were significantly different from zero in all but one pond in each species. Narrow-sense heritability estimates for harvest weight ranged from 0.06 to 0.44 for catla and from 0.18 to 0.51 for silver carp. In contrast to catla, silver carp inter-pond genetic correlations were significantly different from one in multiple cases, indicating the presence of genotype-by-pond interactions. However, these interactions were not entirely explained by genotype-by-culture-system interaction, given the genetic correlation between the monoculture ponds was 0.56 (P = 0.038; from one). Additive variances were not statistically significant for survival in either species, with the exception of silver carp in one polyculture pond. Notably catla harvest weight in monoculture ponds was substantially greater than in biculture ponds, indicating the presence of inter-species competition in biculture ponds. 2023-01 2023-01-06T07:21:15Z 2023-01-06T07:21:15Z Journal Article https://hdl.handle.net/10568/126640 en Open Access application/pdf Elsevier Matthew Hamilton, Wagdy Mekkawy, Md. Badrul Alam, Benoy Barman, Manjurul Karim, John Benzie. (19/9/2022). Genotype-by-culture-system interaction in catla and silver carp: Monoculture and biculture. Aquaculture, 562. |
| spellingShingle | silver carp catla narrow-sense heritability fish genotype-by-environment-by-management interaction additive genetic correlation Hamilton, Matthew Mekkawy, Wagdy Alam, Md. Badrul Barman, Benoy Karim, Manjurul Benzie, John Genotype-by-culture-system interaction in catla and silver carp: Monoculture and biculture |
| title | Genotype-by-culture-system interaction in catla and silver carp: Monoculture and biculture |
| title_full | Genotype-by-culture-system interaction in catla and silver carp: Monoculture and biculture |
| title_fullStr | Genotype-by-culture-system interaction in catla and silver carp: Monoculture and biculture |
| title_full_unstemmed | Genotype-by-culture-system interaction in catla and silver carp: Monoculture and biculture |
| title_short | Genotype-by-culture-system interaction in catla and silver carp: Monoculture and biculture |
| title_sort | genotype by culture system interaction in catla and silver carp monoculture and biculture |
| topic | silver carp catla narrow-sense heritability fish genotype-by-environment-by-management interaction additive genetic correlation |
| url | https://hdl.handle.net/10568/126640 |
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