Hybridization of Russian Sturgeon (Acipenser gueldenstaedtii, Brandt and Ratzeberg, 1833) and American Paddlefish (Polyodon spathula, Walbaum 1792) and Evaluation of Their Progeny
| Autor: | Jenő Káldy, Miklós Bercsényi, Attila Mozsár, Georgina Lea Fazekas, Balázs Kovács, Dorottya Lilla Fazekas, Zsuzsanna Gyöngy, Gyöngyvér Fazekas, Móni Farkas, Eszter Patakiné Várkonyi, Katalin Goda, Kenneth Semmens, Mariann Molnár |
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| Jazyk: | angličtina |
| Rok vydání: | 2020 |
| Předmět: |
0301 basic medicine
lcsh:QH426-470 Zoology chromosome number sturgeon 03 medical and health sciences American paddlefish Sturgeon morphology Genetics Paddlefish Acipenser Genetics (clinical) Hybrid biology Russian sturgeon 04 agricultural and veterinary sciences paternal haploid cell lineage biology.organism_classification Polyspermy ploidy level lcsh:Genetics 030104 developmental biology 040102 fisheries 0401 agriculture forestry and fisheries Ploidy |
| Zdroj: | Genes Volume 11 Issue 7 Genes, Vol 11, Iss 753, p 753 (2020) |
| ISSN: | 2073-4425 |
| DOI: | 10.3390/genes11070753 |
| Popis: | Two species from the families Acipenseridae and Polyodontidae, Russian sturgeon (Acipenser gueldenstaedtii, Brandt and Ratzeberg, 1833 functional tetraploid) and American paddlefish (Polyodon spathula, Walbaum 1792, functional diploid) were hybridized. The hybridization was repeated using eggs from three sturgeon and sperm from four paddlefish individuals. Survival in all hybrid family groups ranged from 62% to 74% 30 days after hatching. This was the first successful hybridization between these two species and between members of the family Acipenseridae and Polyodontidae. Flow cytometry and chromosome analysis revealed two ploidy levels in hybrids. The chromosome numbers of the hybrids ranged between 156&ndash 184 and 300&ndash 310, in &ldquo functional&rdquo triploids and &ldquo pentaploids, respectively. The hybrid origin and the ploidy levels were also confirmed by microsatellite analyses. In hybrids, the size and the number of dorsal and ventral scutes correlated with the ploidy levels as well as with the calculated ratio of the maternal and paternal chromosome sets. An extra haploid cell lineage was found in three hybrid individuals irrespective of the ploidy level, suggesting polyspermy. Although the growth performance showed high variance in hybrids (mean: 1.2 kg, SD: 0.55), many individuals reached a size of approximately 1 kg by the age of one year under intensive rearing conditions. |
| Databáze: | OpenAIRE |
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