ArticleHeredity2015
Rapid genomic DNA changes in allotetraploid fish hybrids.
Article in Heredity, 2015. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 12 papers.
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Who cites it
12 citing papers in PubMed.
- Variation and Interaction of Distinct Subgenomes Contribute to Growth Diversity in Intergeneric Hybrid Fish.Genomics, proteomics & bioinformatics · 2025Article
- Chromosomal rDNA Distribution Patterns in ClonalGenes · 2025Article
- Two New Types of Homodiploid Fish and Polyploid Hybrids Derived from the Distant Hybridization of Female Koi Carp and Male Bighead Carp.Marine biotechnology (New York, N.Y.) · 2021Article
- Optimal reference genes for gene expression analysis in polyploid of Cyprinus carpio and Carassius auratus.BMC genetics · 2020Article
- Hox genes reveal variations in the genomic DNA of allotetraploid hybrids derived from Carassius auratus red var. (female) × Cyprinus carpio L. (male).BMC genetics · 2020Article
- Genome and Karyotype Reorganization after Whole Genome Duplication in Free-Living Flatworms of the GenusInternational journal of molecular sciences · 2020Article
- Variations in 5S rDNAs in diploid and tetraploid offspring of red crucian carp × common carp.BMC genetics · 2017Article
- Chimeras Linked to Tandem Repeats and Transposable Elements in Tetraploid Hybrid Fish.Marine biotechnology (New York, N.Y.) · 2017Article
- A new type of homodiploid fish derived from the interspecific hybridization of female common carp × male blunt snout bream.Scientific reports · 2017Article
- Genomic organization of repetitive DNAs highlights chromosomal evolution in the genus Clarias (Clariidae, Siluriformes).Molecular cytogenetics · 2016Article
- Evolutionary significance and diversification of the phosphoglucose isomerase genes in vertebrates.BMC research notes · 2015Article
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16 authors.
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Abstract
Rapid genomic change has been demonstrated in several allopolyploid plant systems; however, few studies focused on animals. We addressed this issue using an allotetraploid lineage (4nAT) of freshwater fish originally derived from the interspecific hybridization of red crucian carp (Carassius auratus red var., ♀, 2n=100) × common carp (Cyprinus carpio L., ♂, 2n=100). We constructed a bacterial artificial chromosome (BAC) library from allotetraploid hybrids in the 20th generation (F20) and sequenced 14 BAC clones representing a total of 592.126 kb, identified 11 functional genes and estimated the guanine-cytosine content (37.10%) and the proportion of repetitive elements (17.46%). The analysis of intron evolution using nine orthologous genes across a number of selected fish species detected a gain of 39 introns and a loss of 30 introns in the 4nAT lineage. A comparative study based on seven functional genes among 4nAT, diploid F1 hybrids (2nF1) (first generation of hybrids) and their original parents revealed that both hybrid types (2nF1 and 4nAT) not only inherited genomic DNA from their parents, but also demonstrated rapid genomic DNA changes (homoeologous recombination, parental DNA fragments loss and formation of novel genes). However, 4nAT presented more genomic variations compared with their parents than 2nF1. Interestingly, novel gene fragments were found for the iqca1 gene in both hybrid types. This study provided a preliminary genomic characterization of allotetraploid F20 hybrids and revealed evolutionary and functional genomic significance of allopolyploid animals.
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